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Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com
ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26
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Riverside Population in Amazon: Culture, Environment and
Construction Technique
Célia Regina Moretti Meirelles*, Ana Carolina Brugnera**, Gilda Collet Bruna
***, Lucas Fehr***
*(Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil
** (Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil
*** (Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil
**** (Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil
ABSTRACT
This article´s objective is to study the construction techniques of the riverside dwellers in the Amazon rainforest.
The studied communities are located in the banks of the Solimões River, and suffer with the constant floods and
physical phenomena related to the region environment. An ecosystem of thunderous natural forces, which makes
it harder the importation of approaches from other regions as alternatives to the Amazon rainforest. As a method
of research and understanding of the problematics, an assessment of the riverside communities in the city of
Manacapuru and in two rural communities was carried out, surveying the cultural, social, and environmental
characteristics of each community, and surveying the local constructive characteristics, materials and vernacular
techniques. In the conclusion, we observed that: the relevance of a joint action to understand the wood and the
housing durability, expanding the life cycle of the river buildings and reducing the impact on the rainforest.
Regarding thermic comfort, it is important to redeem the bioclimatic techniques of crossed ventilation and to
highlight the relevancy of sustainable techniques that work with local materials, such as natural fibers.
Keywords–culture, environment, house, riparian, riverside population.
I. INTRODUCTION
The main problems highlighted by Bertha
Becker [1] researcher that studied the Amazon
region confirm that the phenomenon of nature, the
floods and river often brings with it challenges for
the riverbank populations. These geographic factors
are amplified by the lack of basic sanitation and
potable water, difficulty to access the healthcare
service and the great distances to the urban centers.
Themajorityof houses aren’t adapted to the
hydrological cycles that occur annually, during the
flood period. The riverine population is subjected to
the contamination of the water by solid wastes, fungi
and bacteria and animals.Cohen et al [2] point out
the importance of allying the conditions for a
“healthy habitat to the strategy of primary
environmental care”. These factors determine “the
results of a gradual process to improve quality of
life”. According to the authors, “the habitat is the
space that surrounds the physical element, the
dwelling. The environmental quality in this built
space, and in its surroundings”, leads to quality of
life.
The Amazon region is rich in geographical
elements and natural resources, yet it lacks
expansionist actions of religious, social and cultural
groups, as well as investments in research. These
actions promote the interaction between researchers
and communities.Thus, the exchange of knowledge
and experiences favors the social inclusion and
improves quality of life. There is a gap related to the
dwelling due to the buildings’ low durability in the
area, lack of comfort and of basic sanitation, with
waste thrown in the rivers, among others. It is
possible to stress out the lack of technical formation
associated to the wood, generating the lack of
housing quality, as observed by Schneider et al [3].
A second point is the lack of valorization of the
goods associated to the local culture and to the
intrinsic nature of the humid tropic regions.The
present study was carried out in two distinct
Manacapuru zones, in the Amazon State, localized
in average at 68 km in straight line from Manaus,
and the other at 35 km on the right bank of the
Solimões River, with latitude and longitude of
3°17’29,44”S and 60°37’54.62”O.
The first visit was held in conjunction with
the Department of Civil Defense of the State of
Amazonas, at the Correnteza neighborhood, in the
city’s urban center, where there are informal
occupations. According to the 2010 City Master
Plan, the Department of Civil Defense informs that
families should be relocated from the risk areas. This
Year, three neighborhoods were at risk: São
Francisco with 397 families, Liberdade with 377,
and the Correnteza neighborhood with 330 families.
RESEARCH ARTICLE OPEN ACCESS
Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com
ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26
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The second visit was in the countryside, in
a scenario of densification opposite to the one found
in urban centers. Two communities were located in
Costa Canabuoca, at the right edge of Solimões
River, geographic region that houses approximately
eight rural communities.At this location, two
communities can be highlighted: Canabuoca 1 and 2,
which are characterized by their landscapes of a
continuous length of floodplain, thus subjected to the
process of water-level fluctuation. This oscillation
between the terrestrial and aquatic phases [4]
promotes environmental changes, allowing different
activities in order to optimize the use of available
resources in different phases of the year. Lakes,
beaches, flood plain and forests are components of
this landscape.
II. METHOD
From an analytical view over the
abovementioned aspect of geographical formation,
we aim to understand the territory through the
concept of cultural environment [5].Formed by a set
of physical and cultural manifestations, this
environment reflects the sum of intangible assets,
such as traditional practices of, past and present
communities, materialized by means of buildings,
objects and tools, among others.The culture of
dwellers riverside, like many other societies of the
national territory, is the result of a long-term
occupation process of the amazon rainforest by a
diversity of cultural identities[6].Therefore, the
multidisciplinary involvement of different areas of
knowledge, especially the traditional practices
transmitted through the participation of social actors
and representatives of those communities,
independently of its location zone, urban or rural, is
considered of paramount importance. Given this
premise, the methodological challenge is to give
voice to the local community. Considering
ofchallenge, field activities were carried out, as well
as surveys of the edified material assets, non-
structured interviews, photographs and
measurements therein.
Thus being, from a field registration
system, tangible and intangible cultural assets, which
are still linked to the territory, were surveyed.
Territorial aspects were surveyed during the
assessment, some of them being:
1. the human relationship with the landscape
transformation; social-cultural aspects; lifestyle
survey; the traditional knowledge focused on
housing construction; the use and management
of local raw material;
2. Technical data;
3. Housing dimension and temperature
measurement.
Three communities were visited throughout
the field research carried out in April 2016.
Meetings were held in each community, totalizing
11 interviews with the residents of the region.The
interviewees were representatives of each
community. Please note that only their first name is
presented in this article, in order to preserve the
residents’ privacy. The interview transcription and
the technical data compilation were performed
during the post-field research period. The field
measurements were performed with measuring tape
and laser thermometer. Therefore, the housing
building technique was represented through digital
media, in drawings with tools such as AutoCad 3D
and SketchUp. After doing so, the critical analysis of
the aforementioned aspects was added herein.
III. THEORETICAL REFERENCE
The first wave of migrants arrived in the
region in search of work, during the so-called rubber
cycles, between the middle of the nineteenth century
and the mid-twentieth. In the second cycle, there was
an increase in the population quotas that sought after
the promise of wealth[7]. As said by Wille Bolle, in
Amazon, there is a search for diversity of natural
resources, ever since the colonization until the
present days [8]. This idea of extractive exploration
is frequent in the history of Brazil’s occupation,
which indicates an approximation between greed and
domination, since its colonization, recurrently in
Amazon[6].The decay of these systems of migration
and immigration, due to exploratory factors during
the history of the Amazon occupation ended by
making relative the absence of urban dynamism. The
several and diverse outbreaks of this migration
process did not promote the local development[9].
Therefore, the Riverside communities are not natural
from the Amazon; along with the environmental
conditions, a traditional identity was built, inhabiting
the riverbanks and expressing itself not only as an
integration with nature, but also as a social adaption
to historic conditions.
The riverside dwellers have a large
knowledge of the territory, its riches and natural
potential, and they know the importance of its
preservation. For this reason, the way he organizes
his life does not devastate the environment, he
knows that he will need nature for his survival. As
described by researcher of the geography area, the
Amazon riverbank population developed an adaptive
process with local biodiversity, due to the strong
relation of dependence with the environment that
culminates in a combination of the integrated use of
the physical space, along with the multiple uses of
the available resources [10]. It is no different when it
comes to housing construction; the knowledge about
the raw material management, and the building
procedures, is passed from generation to
generation.Their way of life carries remainders of
the past, present, and “future” expressing several
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temporalities regarding distant times, to the
indigenous legacy, to the colonialism and to
migration processes that take place to this day. Ana
Carolina Brugnera in your master’s dissertation
concludes that it is possible to identify that the origin
of this population is not constituted only out of the
traditional Amazon populations identifying peculiar
nuances of the way of living that are reflected in the
architecture with its direct link with the landscape in
which they are inserted. Their physical aspects, such
as hydrological, geological, geographic aspects,
added to their history and culture. It can be noted
that during the process of occupation the exchange
of knowledge between different actors in society
occurred [6].
IV. DISCUSSIONS AND RESULTS
In order, to analyze the cultural, the
environmental characteristics, and the construction
techniques, a review on the literature was carried
out, complementing the field studies and the visits of
the researches to the environment, the observational
visits and the interviews.
IV.I. Environment and culture:
On a field trip, in one of the Costa do
Canabuoca communities, the Canabuoca 3
community was visited, and an interview was carried
out with its representative, Mr. Raimundo. There is a
variety of communities along Solimões’ River
channel. The interviewee states that just within
Costa do Canabuoca-Manacapuru/AM, there are 8:
Pesqueiro, Marrecão, Canabuoca 1, Canabuoca 2,
Canabuoca 3, Vila do Jacaré, Nova Canaã and São
Geraldo. The last one being next to the border with
Anamã city (see figure 1). Mr. Raimundo, born and
raised within the community, is Napoleão’s son, as
he reports in the interview: “I was born and raised
here and I worked during my entire youth…. When I
was 30 years old, I moved to Manacapuru. In the
city, I built my house and raised my children, but I
myself was not able to adapt, so I decided to go back
to the countryside. My father lived in this little house
next to mine on his own; God and him. It took me a
while to get used to the countryside again, to crop, to
fishing… Then, I slowly started to bring my family
back. There were still some family members that
stayed in Manacapuru. Nowadays, I am 59 years old
and I am healthy enough to work, thank God”.
Just as the Family of Raimundo and
Napoleão, whose grandfather, father, son,
grandchildren and great-grand children live in the
area, according to the community representative,
there are other 130 families registered in this place.
The daily life of these families is directly linked to
the nature of the forest, to the water cycle and to the
management of their natural resources that guarantee
the subsistence of these people that live there. There
is time to fish, to produce the flour, time to harvest,
of the guava and açaí.
Figure1 – MMap with the localization of the
communities of Costa do Canabuoca, quoted by
Raimundo. Source: Adapted by Ana Carolina
Brugnera from Google Earth, April 2016.
In the community of floating houses Rosa
Mística, located near the city of Manacapuru, the
strength of this culture can be highlighted.An eight-
year-old boy navigates along the Solimões River on
top of a three-meter-long canoe. He speeds up the
stern-drive engine, and goes towards the dry land,
approaching Canabuoca’s Coast, where his
houseboat, fixed upon the açacu logs, is
located.When he is almost reaching his destination,
he turns off the engine, retracts it and within
seconds, he grabs the paddles. Aided by the ripples,
he rows towards his home. Amazon pulsates; men
live there in harmony with nature. His father is Mr.
Renato, a fisherman, who decided to live “on the
water” due to his profession. As he says “the closer
to the river, the better”At the time of moving, some
friends from the local community helped him build
his house. They gathered the floating açacu logs and
raised the basis over the water, the structure of the
floor (wood), the mainstay, poles and roof structure.
Under the cover, the floor was built, the walls gasket
and the inner divisions, all madeout of wood. It is a
job that demands a lot of effort. As Mr. Renato says:
“as you can see here, it is a house made of wood that
floats over the water. It moves wherever you want it
to. It adapts to nature and to the river.”
The profiles of this Riverside population
described above are a constituting part of the long-
term process of occupation of the Amazon territory,
according to interview with the secretary of
environment of Manacapuru, “they are called
Riverside populations because they originated by the
river side, and the occupation starts on the river
side.”The occupations that characterizes the rural
areas had gone through modifications, in the
territorial space, small urban nuclei were created,
classified today as Amazonian municipalities and
their districts, where the population that lived far
from public services, like schools, health and urban
infrastructure, come back to the urban centers
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searching better quality of life. This rural exodus
causes, many times, social problems. Cities that
receive a great amount of migrants, that many times
are not prepared to such phenomenon. The Jobs are
not sufficient and many migrants start working in the
informal Market and come live in housings with no
good conditions, like “favelas” and “human
beehives”.
In the urban areas, the agglomeration of
people creates social vulnerability and risky
conditions to the population that lives there. These
conditions are intensified by physical factors, like
flood areas, earth sliding and anthropic factors,
resulting from human activities, like construction of
housing on unstable ground, leading to informal
occupations, using rudimentary techniques.The
neighborhood of Correnteza in Manacapuru is an
example of this phenomenon that was identified
during the visit. The riverside people brought their
customs from the rural zone and they used their
customs in the city, creating hygiene and security
problems, since they were placed at risk areas. The
families that lived many kilometers away from each
other now are living very close, within a five to ten
meters’ range.
In Manacapuru, these migrants are in
peripheral regions, by informal occupations, in
places like the Correnteza, Liberdade, São Francisco
and Biribiri neighborhoods. Differently from the city
center (downtown), which is located in higher lands,
these neighborhoods are in areas that are easily
flooded. Manacapuru is located between different
sources of water, with the main access through the
channel of Solimões River, which is surrounded by
lakes, like the Miriti Lake and further on the
Manacapuru Lake and the Cabaliana one. In the
Waters period, the floods cover these lower land
neighborhoods.Houses are abandoned by their
residents, wooden walkways are built for the
mobility of families, one raised floor is built inside
the buildings and houses, to escape the waters.
Amidst the problems brought about by the flood,
which occurs every year, it is clear the lack of
planning for the expansion of the city and its
infrastructure.
The population that escaped from the rural
hinterland finds new problems, now due to the
untidy occupation in urban centers. The issue is no
longer regarding neglecting public services, but the
distance up to these services as a lack of urban
infrastructure, mainly those related to a lacking
public health and lack of basic sanitation.
Figure 2- Buildings in risk location, in the
Correnteza neighborhood. April 2016. Source:
registered by Autor’s
Figure 3- Buildings in risk location, in the
Correnteza neighborhood. April 2016. Source:
registered by registered by Autor’s
In the city’s periphery, in the Correnteza
neighborhood, there are houses in situation of
structural collapse, in special, in areas where the
wood foundation the large majority of time remain
in a flooded area. In addition to the problems
mentioned, many riverside dwellers throw the
sewage under the house, aggravating the problems of
foundation. Due to the Strong movement of the
floods, there were houses where the pillars were not
aligned, getting distant from the floor structure in
wood. The population requires that the governors
and the civil defense find ways to move these
dwellers somewhere else. The two Fig. 2 and 3 show
the houses of Street of Afonso Pena, considering the
situation of structural risk.
IV.II. Constructive techniques:
The visited houses in the rural
communities, differently to urban zones, find a
constructive richness in terms of finishing, with
gables and guardrail, each house with one color and
details that represent its dweller’s identity.As one
can observe in Fig.4 and 5. Fig.4 shows the floating
log houses and Fig.5 shows stilt house, built on
lowland areas.
Figure 4 – Buildings from Canabuoca 3 region.
April 2016. Source: registered by Ana Carolina
Brugnera.
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ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26
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Figure 5 – Buildings of Canabuoca 3 region: stilt
house. April 2016. Source: registered by Ana
Carolina Brugnera
In Costa Canabuoca, the communities take
the raw material out of the Amazon forest and
during the rains (June-August), the water level rises
and facilitates the access to areas on land, where
there are durable woods, for instance the
Maçaranduba – Manilkara. Another fact is that in
this region there are no sawmills nearby, and thus
the own community enters the forest and through
management they determine which trees will be cut.
Amid the forest, they collect the wood and craft
pieces for construction. Note that this is not
commercial exploitation, as they extract the wood
for their own housing, public and community
buildings only.Mr. Napoleão lives in the Canabuoca
coast, and the distance from his house to the
permanent course of the Solimões River is short.
During the floods, this distance is closed. During this
time, the house remains over the stilt under the river.
In his country house, there are three buildings
drawing the attention, since they date back to
different times: a small wooden house, very rustic
with no balcony, gables or any ornamentations, that
belonged to his grandfather. The second, somewhat
larger, and somewhat taller, belonged to his father.
The third building, which we visited, the family’s
current residence, is taller in relation to the old
constructions, well structured, with a balcony at the
front portion of the house, directed towards the river.
These houses display how the constructing technique
has evolved throughout the years.
As it is identifiable in field researches, the
housing in Canabuoca coast harmonizes itself not
only with the oscillation of the water level, but also
with the transformation of the landscape resulting
from the forces of nature, in different periods of the
year. It is identifiable in the location that the
riverside people of this region have been elevating
each time more their houses due to the climate
changes occurred during the last decades, generating
a larger volume of water in the river floods in
Amazon. Another factor that can be held responsible
for the difference in the heights of the stilt of the
three houses above analyzed is the accumulation of
sediments left in the river channels due to the waters
running down the Andes [10]. Therefore, these
landscapes are extremely dynamic, according to Mr.
Bernardino:“...in Canabuoca Coast, the floods
happen every year and they are violent, destroying
everything... Still, people start all over again every
year, since everything is ended here [...]. Down the
river, a house fell due to the big waves of the ships;
here, nothing happened since the ship passes by the
other side of the river”.
The houses of the riverside people have few
internal divisions in general that divide rooms, living
room, and kitchen. The buildings in general have
wooden structures and gaskets, their cover today is
predominantly out of aluminum, due to the easy
access to constructing elements manufactured
especially on regions close to urban centers. In the
more isolated regions, there are buildings covered
with straw roofs, a material used in the beginning,
for example as a hut under construction registered in
the community of Canabuoca 1, see Fig.6.
Figure 6 - Hut in construction with roof of straw,
registered in the community of Canabuoca 1. April
2016. Source: registered by Ana Carolina Brugnera.
House building is a men’s work, and a
collective work. The riverside people build their
houses or buildings like a church with the aid of
their children, friends and neighbors. In a field trip,
we had the experience to witness a family building
their house on high pillars, and children reproducing
the knowledge through child games, working with
what was left form the wooden construction, small
houses in the inferior gap between houses,
miniatures of high pillars, as shown on Fig. 7.
Figura 7-Miniature house done by children during
construction done by their fathers of Family. Source:
registered by Autor’s
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The foundation, of the building in stilt
house wood in general is made with the pillar
directly on the soil. Regarding the structure of the
construction, stilt house or floating over water, it
presents the same components assembled in
sequence: the pillars and wooden by compression,
that are the supporting structures; once the vertical
structures are fixed, the longitudinal and transversal
poles are the support for the floor and roof wooden
pieces, stabilizing the building structure.With the
main structure of the building done, the riverside
people place its cover. This may be of straw,
asbestos, zinc, fibro-cement or aluminum, allowing
them to work, the floor, gaskets and placing window
frames in the shadow cast.As Mr. Napoleão says:
“Here, the roof is done first, and then we work on
the floor coating, so that it does not receive the heat
of the sun.In such case, the floor covering spikes up,
due to the insufficient drying period.”The treatment
that is applied to the wood in this region is
rudimentary, distinct from the professional industries
of wood commercialization in Brazil, where the
wood is considered dry with a humidity rate of 12%
to 15%. Mr. Bernardino reports that in Riverside
buildings, the drying time is practically null. The
wood is used green with a 33% humidity rate, the
same humidity rate of wood when it is removed
from the forest. This fact causes several problems in
the building, among them the rotting and the
retraction. He notes that to prevent the cracks, "[he]
nails the wood boards as close as possible to one
another". One of the cultural beliefs of this
population is that when the wood is removed under
the moonlight, it will be spoiled. They emphasize
that woods such as Itaúba (MezilaurusItaúba), Louro
(Bastardiopsisdensiflora), Andiroba and
Maçaranduba are strong, and even though they are
still wet, they are resistant to pests and bugs.
The field work indicated that the distance
from the floors in the stilt houses to the environment
is of about 1,5 meters, because the Riverside people
have been raising their houses each time more, due
to the influent climatic changes occurred over the
last decades that directly interfered in the volume of
water and in the floods of the rivers of the Amazon
region. Another factor that is less influent, but also
acting upon the housing, is the accrued sediments
(sand) left in the rivers’ channels due to the Waters
coming down (ebb tide); therefore, these landscapes
are extremely dynamic [10].
The sandy soil is a soil with little cohesion,
that is, its grains are easily separable from one
another when dried and with a temporary cohesion
when humid. This fact accelerates the problems of
global stability of the buildings in stilt houses, once
their foundations is superficial, and the houses are
subjected to the movement that happens in the soil
due to the annual floods. Another point taken during
the field trip was the lack of stability of the buildings
that in general do not have cross bracing. These two
factors result in the observed problems like the
houses with inclined pillars, or that lack any support
to the beam whatsoever, see Fig.8.
Figure 8 - shows the dislocated pillars and flooded
level of water. Source: Picture by Ana Carolina
Brugnera.
Current researches highlight the importance
of the Housing Project in considering sustainable
parameters for the comfort of the residents, aiming
at a more durable building, so that to increase the
life time of a building, among other factors
integrating bioclimatic concepts, like cross
ventilation [11].As of the durability of the Riverside
houses, some points observed therein can be
highlighted, such as: the wooden pillars in general
are directly dug in the soil, which speeds up the
rotting process over the course of time. In this case,
some communities cut the pillars and elevate the
building, in new wooden pillars. In general, the wet
areas, like the bathroom and the kitchen sink are
located outside the houses.
Another related point, which directly
affects the durability of the riverside housing, is the
fact that most houses present small eaves. It is
known that the farther the wood is from the water,
the longer the building may last. Another important
aspect is the shape and composition of the gasket.In
Manacapuru, the majorityof the houses present
wooden boards nailed upwards. During the floods
and the period of rains, these boards get rotten in
their foundation, demanding the removal of the
whole board for maintenance.These factors
accelerate the wooden houses degrading process and
directly impact the forest cycle of life.
For some decades, when in this Amazon
region, the access to industrialized constructive
elements was restricted, the cover of the houses was
made of straw, material that provided them with a
fresher environment to the building’s interior. Over
the last years, new elements made it to the region,
the riverside population adopted the aluminum and
zinc to build its cover. According to Oliveira Junior
[12] this roof tile when curled fits in a small boat
called fast boat for local transportation, and so, this
element easily arrives at the more isolated locations.
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However, according to measurements done in site,
the aluminum roof provides a big thermal discomfort
inside the buildings, at several times with an internal
temperature being higher than the external. For
instance, according to readings performed by our
thermometers in site, at Mr. Napoleão’s residence,
the temperature in the internal environment
registered 34°C and on the aluminum roof it was
50°C, while the external temperature in the
environment was 29°C.Mr. Napoleão’s house
presented a porch turned towards the River and
eaves a little bit larger than those normally found in
the region. It can be noted that the higher
temperatures directly affect the quality of life of
those who live there.
The majority of the houses in the region
needs to go through a process of recovery, on an
average of a 15-year basis. This is considered a very
short period for a housing cycle of life. This is a
distinct reality from that in the Brazilian Southeast
cities, where housing is designed to last more than
one generation or century. At the same time, this
reality is impacting on the life of the riverside
people, since many times due to the nature
phenomena, they need to rebuild a new house.As the
study of Association “Wood for Good” points out,
the durability of a wooden building when well
designed may compete with brick, concrete and steel
buildings [13].
V. FINAL CONSIDERATIONS
The researchdemonstrates the importance
of field trips and the participation of the Riverside
community for the understanding of the cultural
characteristics and the problems the population
copes with[14].The importance of the involvement
of different researches, with the communities, with
the valorization of the concept of housing and an
adequate knowledge of the architecture design.
Therefore, elements that enhance comfort, building
durability and technical development of the wood
are sought, instructing community officials to
understand how to work with the wood in the
building.We observed the importance of a joint
action, for the understanding of the wood and with
an adequate and durable housing design, thus
extending the cycle of life of the Riverside
buildings, and decreasing the impact on the
florets.As an example, we can highlight a few points
to a longer durability of the building: a concrete
foundation; pillars with variable heights, sensible to
the water level, use of porches and larger eaves,
board gaskets nailed upwards. To amplify the global
stability of the Riverside people, they should recover
the elements of cross bracing that over the course of
time have been lost.
In thermal comfort, the importance of
tracing back the bioclimatic techniques with cross
ventilation and chimney effect to minimize the heat
near the aluminum tile, or working with a double-
aired roof. It is highlighted the relevance of
techniques that work with the development of local
materials, such as natural fibers for the improvement
of the housing, so it is not needed to import
industrialized materials that are not adequate to the
weather.The importance of joint actions among the
universities, governments, communities and
associations that enable the implementation of
technical courses on wood and industries in the
region, with the production of wooden components,
seeking to determine the durability and the quality
needed to tend to the riverside people’s needs. As an
example, we highlight the laminated glued wood,
laser cut wood, closing panel factories, with
humidity control.
REFERENCES
[1]. BECKER, Bertha (2009). Amazônia. In:
Magazine National Geographic. Disponível
em
http://planetasustentavel.abril.com.br/notici
a/ambiente/conteudo_419750.shtml?func=>
acesso em 10. Agôs. 2015.
[2]. COHEN et al. Habitação saudável e
ambientes favoráveis à saúde como
estratégia de promoção da saúde. Revista
de saúde coletiva.vol.12 no.1 Rio de
Janeiro Jan./Mar. 2007.
[3]. SCHNEIDER, R.; ARIMA, E.;
VERÍSSIMO, A.; BARRETO, P. S. Jr
(2000). Amazônia Sustentável: limitantes e
oportunidades para o desenvolvimento
rural. Brasília: Banco Mundial; Belém:
Imazon, 2000.
[4]. JUNK, W. J.; BAYLEY, P. B.; SPARKS,
R. E. The flood pulse concept in river
floodplain systems. Canadian Special
Publication of Fisheries and Aquatic
Sciences, v. 106, p. 110-127, 1989.
[5]. ROBRAHN-GONZÁLEZ, Erika Marion
(2013). A Construção do meio ambiente
cultural: reflexões e práticas no Brasil. In
JARDIM, Jean (Org.); Direito, Educação,
Ética e Sustentabilidade: Diálogos entre os
vários ramos do conhecimento no contexto
da américa Latina e do Caribe – Vol. 2.
Goiânia: Instituto Tueri, 2013.
[6]. BRUGNERA, Ana Carolina. Meio
ambiente cultural da Amazônia brasileira:
dos modos de vida a moradia do caboclo
ribeirinho [Dissertação de Mestrado]. São
Paulo: FAU-Mackenzie, 2015.
[7]. FERNANDES, Carolina Trindade.
Moradia cabocla ribeirinha. Manaus:
Iphan/AM, 2009.
Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com
ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26
www.ijera.com 26|P a g e
[8]. BOLLE, Wille; CASTRO, Edna;
VEJMELKA, Marcel (Org.) (2010).
Amazônia: Região universal e teatro do
mundo. São Paulo/SP: Editora Globo.
[9]. BECKER, Bertha (2013). A urbe
amazônida: a floresta e a cidade. Rio de
Janeiro/RJ: Ed. Garamond Ltda.
[10]. GARCEZ, Danielle Sequeira. BOTERO,
Jorge Iván Sánches. FABRÉ, Nidia Noemi
(2010). Fatores que influenciam no
comportamento territorial de ribeirinhos
sobre ambientes de pesca em áreas de
várzea do baixo Solimões, Amazônia
Central, Brasil. In Boletin do Museu
Paranaense Emílio Goeldi. Ciências
Humanas. Belém, v. 5, n. 3. Set-dez, 2010.
[11]. KEELER, M.; BURKE, B. Fundamentos de
Projeto de Edificações Sustentáveis. Porto
Alegre: Bookman, 2010. 362 p.
[12]. OLIVEIRA JUNIOR (2009), Jair Antônio
de. Arquitetura Ribeirinha sobre as águas
da Amazônia: o habitat em ambientes
complexos [dissertação]. São Paulo:
FAU/USP.
[13]. TRADA (2013). Reusable and Adaptable
Wood Structure. London. Wood for Good,
TRADA, 2009. Disponível em
<www.woodforgood.com> acesso em 20
jan. 2013.
[14]. Gratefulness To MACKPESQUISA for
financial support

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Riverside Population in Amazon: Culture, Environment and Construction Technique

  • 1. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 19|P a g e Riverside Population in Amazon: Culture, Environment and Construction Technique Célia Regina Moretti Meirelles*, Ana Carolina Brugnera**, Gilda Collet Bruna ***, Lucas Fehr*** *(Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil ** (Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil *** (Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil **** (Department of Architecture and Urbanism, Mackenzie Presbiterian University, Brazil ABSTRACT This article´s objective is to study the construction techniques of the riverside dwellers in the Amazon rainforest. The studied communities are located in the banks of the Solimões River, and suffer with the constant floods and physical phenomena related to the region environment. An ecosystem of thunderous natural forces, which makes it harder the importation of approaches from other regions as alternatives to the Amazon rainforest. As a method of research and understanding of the problematics, an assessment of the riverside communities in the city of Manacapuru and in two rural communities was carried out, surveying the cultural, social, and environmental characteristics of each community, and surveying the local constructive characteristics, materials and vernacular techniques. In the conclusion, we observed that: the relevance of a joint action to understand the wood and the housing durability, expanding the life cycle of the river buildings and reducing the impact on the rainforest. Regarding thermic comfort, it is important to redeem the bioclimatic techniques of crossed ventilation and to highlight the relevancy of sustainable techniques that work with local materials, such as natural fibers. Keywords–culture, environment, house, riparian, riverside population. I. INTRODUCTION The main problems highlighted by Bertha Becker [1] researcher that studied the Amazon region confirm that the phenomenon of nature, the floods and river often brings with it challenges for the riverbank populations. These geographic factors are amplified by the lack of basic sanitation and potable water, difficulty to access the healthcare service and the great distances to the urban centers. Themajorityof houses aren’t adapted to the hydrological cycles that occur annually, during the flood period. The riverine population is subjected to the contamination of the water by solid wastes, fungi and bacteria and animals.Cohen et al [2] point out the importance of allying the conditions for a “healthy habitat to the strategy of primary environmental care”. These factors determine “the results of a gradual process to improve quality of life”. According to the authors, “the habitat is the space that surrounds the physical element, the dwelling. The environmental quality in this built space, and in its surroundings”, leads to quality of life. The Amazon region is rich in geographical elements and natural resources, yet it lacks expansionist actions of religious, social and cultural groups, as well as investments in research. These actions promote the interaction between researchers and communities.Thus, the exchange of knowledge and experiences favors the social inclusion and improves quality of life. There is a gap related to the dwelling due to the buildings’ low durability in the area, lack of comfort and of basic sanitation, with waste thrown in the rivers, among others. It is possible to stress out the lack of technical formation associated to the wood, generating the lack of housing quality, as observed by Schneider et al [3]. A second point is the lack of valorization of the goods associated to the local culture and to the intrinsic nature of the humid tropic regions.The present study was carried out in two distinct Manacapuru zones, in the Amazon State, localized in average at 68 km in straight line from Manaus, and the other at 35 km on the right bank of the Solimões River, with latitude and longitude of 3°17’29,44”S and 60°37’54.62”O. The first visit was held in conjunction with the Department of Civil Defense of the State of Amazonas, at the Correnteza neighborhood, in the city’s urban center, where there are informal occupations. According to the 2010 City Master Plan, the Department of Civil Defense informs that families should be relocated from the risk areas. This Year, three neighborhoods were at risk: São Francisco with 397 families, Liberdade with 377, and the Correnteza neighborhood with 330 families. RESEARCH ARTICLE OPEN ACCESS
  • 2. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 20|P a g e The second visit was in the countryside, in a scenario of densification opposite to the one found in urban centers. Two communities were located in Costa Canabuoca, at the right edge of Solimões River, geographic region that houses approximately eight rural communities.At this location, two communities can be highlighted: Canabuoca 1 and 2, which are characterized by their landscapes of a continuous length of floodplain, thus subjected to the process of water-level fluctuation. This oscillation between the terrestrial and aquatic phases [4] promotes environmental changes, allowing different activities in order to optimize the use of available resources in different phases of the year. Lakes, beaches, flood plain and forests are components of this landscape. II. METHOD From an analytical view over the abovementioned aspect of geographical formation, we aim to understand the territory through the concept of cultural environment [5].Formed by a set of physical and cultural manifestations, this environment reflects the sum of intangible assets, such as traditional practices of, past and present communities, materialized by means of buildings, objects and tools, among others.The culture of dwellers riverside, like many other societies of the national territory, is the result of a long-term occupation process of the amazon rainforest by a diversity of cultural identities[6].Therefore, the multidisciplinary involvement of different areas of knowledge, especially the traditional practices transmitted through the participation of social actors and representatives of those communities, independently of its location zone, urban or rural, is considered of paramount importance. Given this premise, the methodological challenge is to give voice to the local community. Considering ofchallenge, field activities were carried out, as well as surveys of the edified material assets, non- structured interviews, photographs and measurements therein. Thus being, from a field registration system, tangible and intangible cultural assets, which are still linked to the territory, were surveyed. Territorial aspects were surveyed during the assessment, some of them being: 1. the human relationship with the landscape transformation; social-cultural aspects; lifestyle survey; the traditional knowledge focused on housing construction; the use and management of local raw material; 2. Technical data; 3. Housing dimension and temperature measurement. Three communities were visited throughout the field research carried out in April 2016. Meetings were held in each community, totalizing 11 interviews with the residents of the region.The interviewees were representatives of each community. Please note that only their first name is presented in this article, in order to preserve the residents’ privacy. The interview transcription and the technical data compilation were performed during the post-field research period. The field measurements were performed with measuring tape and laser thermometer. Therefore, the housing building technique was represented through digital media, in drawings with tools such as AutoCad 3D and SketchUp. After doing so, the critical analysis of the aforementioned aspects was added herein. III. THEORETICAL REFERENCE The first wave of migrants arrived in the region in search of work, during the so-called rubber cycles, between the middle of the nineteenth century and the mid-twentieth. In the second cycle, there was an increase in the population quotas that sought after the promise of wealth[7]. As said by Wille Bolle, in Amazon, there is a search for diversity of natural resources, ever since the colonization until the present days [8]. This idea of extractive exploration is frequent in the history of Brazil’s occupation, which indicates an approximation between greed and domination, since its colonization, recurrently in Amazon[6].The decay of these systems of migration and immigration, due to exploratory factors during the history of the Amazon occupation ended by making relative the absence of urban dynamism. The several and diverse outbreaks of this migration process did not promote the local development[9]. Therefore, the Riverside communities are not natural from the Amazon; along with the environmental conditions, a traditional identity was built, inhabiting the riverbanks and expressing itself not only as an integration with nature, but also as a social adaption to historic conditions. The riverside dwellers have a large knowledge of the territory, its riches and natural potential, and they know the importance of its preservation. For this reason, the way he organizes his life does not devastate the environment, he knows that he will need nature for his survival. As described by researcher of the geography area, the Amazon riverbank population developed an adaptive process with local biodiversity, due to the strong relation of dependence with the environment that culminates in a combination of the integrated use of the physical space, along with the multiple uses of the available resources [10]. It is no different when it comes to housing construction; the knowledge about the raw material management, and the building procedures, is passed from generation to generation.Their way of life carries remainders of the past, present, and “future” expressing several
  • 3. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 21|P a g e temporalities regarding distant times, to the indigenous legacy, to the colonialism and to migration processes that take place to this day. Ana Carolina Brugnera in your master’s dissertation concludes that it is possible to identify that the origin of this population is not constituted only out of the traditional Amazon populations identifying peculiar nuances of the way of living that are reflected in the architecture with its direct link with the landscape in which they are inserted. Their physical aspects, such as hydrological, geological, geographic aspects, added to their history and culture. It can be noted that during the process of occupation the exchange of knowledge between different actors in society occurred [6]. IV. DISCUSSIONS AND RESULTS In order, to analyze the cultural, the environmental characteristics, and the construction techniques, a review on the literature was carried out, complementing the field studies and the visits of the researches to the environment, the observational visits and the interviews. IV.I. Environment and culture: On a field trip, in one of the Costa do Canabuoca communities, the Canabuoca 3 community was visited, and an interview was carried out with its representative, Mr. Raimundo. There is a variety of communities along Solimões’ River channel. The interviewee states that just within Costa do Canabuoca-Manacapuru/AM, there are 8: Pesqueiro, Marrecão, Canabuoca 1, Canabuoca 2, Canabuoca 3, Vila do Jacaré, Nova Canaã and São Geraldo. The last one being next to the border with Anamã city (see figure 1). Mr. Raimundo, born and raised within the community, is Napoleão’s son, as he reports in the interview: “I was born and raised here and I worked during my entire youth…. When I was 30 years old, I moved to Manacapuru. In the city, I built my house and raised my children, but I myself was not able to adapt, so I decided to go back to the countryside. My father lived in this little house next to mine on his own; God and him. It took me a while to get used to the countryside again, to crop, to fishing… Then, I slowly started to bring my family back. There were still some family members that stayed in Manacapuru. Nowadays, I am 59 years old and I am healthy enough to work, thank God”. Just as the Family of Raimundo and Napoleão, whose grandfather, father, son, grandchildren and great-grand children live in the area, according to the community representative, there are other 130 families registered in this place. The daily life of these families is directly linked to the nature of the forest, to the water cycle and to the management of their natural resources that guarantee the subsistence of these people that live there. There is time to fish, to produce the flour, time to harvest, of the guava and açaí. Figure1 – MMap with the localization of the communities of Costa do Canabuoca, quoted by Raimundo. Source: Adapted by Ana Carolina Brugnera from Google Earth, April 2016. In the community of floating houses Rosa Mística, located near the city of Manacapuru, the strength of this culture can be highlighted.An eight- year-old boy navigates along the Solimões River on top of a three-meter-long canoe. He speeds up the stern-drive engine, and goes towards the dry land, approaching Canabuoca’s Coast, where his houseboat, fixed upon the açacu logs, is located.When he is almost reaching his destination, he turns off the engine, retracts it and within seconds, he grabs the paddles. Aided by the ripples, he rows towards his home. Amazon pulsates; men live there in harmony with nature. His father is Mr. Renato, a fisherman, who decided to live “on the water” due to his profession. As he says “the closer to the river, the better”At the time of moving, some friends from the local community helped him build his house. They gathered the floating açacu logs and raised the basis over the water, the structure of the floor (wood), the mainstay, poles and roof structure. Under the cover, the floor was built, the walls gasket and the inner divisions, all madeout of wood. It is a job that demands a lot of effort. As Mr. Renato says: “as you can see here, it is a house made of wood that floats over the water. It moves wherever you want it to. It adapts to nature and to the river.” The profiles of this Riverside population described above are a constituting part of the long- term process of occupation of the Amazon territory, according to interview with the secretary of environment of Manacapuru, “they are called Riverside populations because they originated by the river side, and the occupation starts on the river side.”The occupations that characterizes the rural areas had gone through modifications, in the territorial space, small urban nuclei were created, classified today as Amazonian municipalities and their districts, where the population that lived far from public services, like schools, health and urban infrastructure, come back to the urban centers
  • 4. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 22|P a g e searching better quality of life. This rural exodus causes, many times, social problems. Cities that receive a great amount of migrants, that many times are not prepared to such phenomenon. The Jobs are not sufficient and many migrants start working in the informal Market and come live in housings with no good conditions, like “favelas” and “human beehives”. In the urban areas, the agglomeration of people creates social vulnerability and risky conditions to the population that lives there. These conditions are intensified by physical factors, like flood areas, earth sliding and anthropic factors, resulting from human activities, like construction of housing on unstable ground, leading to informal occupations, using rudimentary techniques.The neighborhood of Correnteza in Manacapuru is an example of this phenomenon that was identified during the visit. The riverside people brought their customs from the rural zone and they used their customs in the city, creating hygiene and security problems, since they were placed at risk areas. The families that lived many kilometers away from each other now are living very close, within a five to ten meters’ range. In Manacapuru, these migrants are in peripheral regions, by informal occupations, in places like the Correnteza, Liberdade, São Francisco and Biribiri neighborhoods. Differently from the city center (downtown), which is located in higher lands, these neighborhoods are in areas that are easily flooded. Manacapuru is located between different sources of water, with the main access through the channel of Solimões River, which is surrounded by lakes, like the Miriti Lake and further on the Manacapuru Lake and the Cabaliana one. In the Waters period, the floods cover these lower land neighborhoods.Houses are abandoned by their residents, wooden walkways are built for the mobility of families, one raised floor is built inside the buildings and houses, to escape the waters. Amidst the problems brought about by the flood, which occurs every year, it is clear the lack of planning for the expansion of the city and its infrastructure. The population that escaped from the rural hinterland finds new problems, now due to the untidy occupation in urban centers. The issue is no longer regarding neglecting public services, but the distance up to these services as a lack of urban infrastructure, mainly those related to a lacking public health and lack of basic sanitation. Figure 2- Buildings in risk location, in the Correnteza neighborhood. April 2016. Source: registered by Autor’s Figure 3- Buildings in risk location, in the Correnteza neighborhood. April 2016. Source: registered by registered by Autor’s In the city’s periphery, in the Correnteza neighborhood, there are houses in situation of structural collapse, in special, in areas where the wood foundation the large majority of time remain in a flooded area. In addition to the problems mentioned, many riverside dwellers throw the sewage under the house, aggravating the problems of foundation. Due to the Strong movement of the floods, there were houses where the pillars were not aligned, getting distant from the floor structure in wood. The population requires that the governors and the civil defense find ways to move these dwellers somewhere else. The two Fig. 2 and 3 show the houses of Street of Afonso Pena, considering the situation of structural risk. IV.II. Constructive techniques: The visited houses in the rural communities, differently to urban zones, find a constructive richness in terms of finishing, with gables and guardrail, each house with one color and details that represent its dweller’s identity.As one can observe in Fig.4 and 5. Fig.4 shows the floating log houses and Fig.5 shows stilt house, built on lowland areas. Figure 4 – Buildings from Canabuoca 3 region. April 2016. Source: registered by Ana Carolina Brugnera.
  • 5. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 23|P a g e Figure 5 – Buildings of Canabuoca 3 region: stilt house. April 2016. Source: registered by Ana Carolina Brugnera In Costa Canabuoca, the communities take the raw material out of the Amazon forest and during the rains (June-August), the water level rises and facilitates the access to areas on land, where there are durable woods, for instance the Maçaranduba – Manilkara. Another fact is that in this region there are no sawmills nearby, and thus the own community enters the forest and through management they determine which trees will be cut. Amid the forest, they collect the wood and craft pieces for construction. Note that this is not commercial exploitation, as they extract the wood for their own housing, public and community buildings only.Mr. Napoleão lives in the Canabuoca coast, and the distance from his house to the permanent course of the Solimões River is short. During the floods, this distance is closed. During this time, the house remains over the stilt under the river. In his country house, there are three buildings drawing the attention, since they date back to different times: a small wooden house, very rustic with no balcony, gables or any ornamentations, that belonged to his grandfather. The second, somewhat larger, and somewhat taller, belonged to his father. The third building, which we visited, the family’s current residence, is taller in relation to the old constructions, well structured, with a balcony at the front portion of the house, directed towards the river. These houses display how the constructing technique has evolved throughout the years. As it is identifiable in field researches, the housing in Canabuoca coast harmonizes itself not only with the oscillation of the water level, but also with the transformation of the landscape resulting from the forces of nature, in different periods of the year. It is identifiable in the location that the riverside people of this region have been elevating each time more their houses due to the climate changes occurred during the last decades, generating a larger volume of water in the river floods in Amazon. Another factor that can be held responsible for the difference in the heights of the stilt of the three houses above analyzed is the accumulation of sediments left in the river channels due to the waters running down the Andes [10]. Therefore, these landscapes are extremely dynamic, according to Mr. Bernardino:“...in Canabuoca Coast, the floods happen every year and they are violent, destroying everything... Still, people start all over again every year, since everything is ended here [...]. Down the river, a house fell due to the big waves of the ships; here, nothing happened since the ship passes by the other side of the river”. The houses of the riverside people have few internal divisions in general that divide rooms, living room, and kitchen. The buildings in general have wooden structures and gaskets, their cover today is predominantly out of aluminum, due to the easy access to constructing elements manufactured especially on regions close to urban centers. In the more isolated regions, there are buildings covered with straw roofs, a material used in the beginning, for example as a hut under construction registered in the community of Canabuoca 1, see Fig.6. Figure 6 - Hut in construction with roof of straw, registered in the community of Canabuoca 1. April 2016. Source: registered by Ana Carolina Brugnera. House building is a men’s work, and a collective work. The riverside people build their houses or buildings like a church with the aid of their children, friends and neighbors. In a field trip, we had the experience to witness a family building their house on high pillars, and children reproducing the knowledge through child games, working with what was left form the wooden construction, small houses in the inferior gap between houses, miniatures of high pillars, as shown on Fig. 7. Figura 7-Miniature house done by children during construction done by their fathers of Family. Source: registered by Autor’s
  • 6. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 24|P a g e The foundation, of the building in stilt house wood in general is made with the pillar directly on the soil. Regarding the structure of the construction, stilt house or floating over water, it presents the same components assembled in sequence: the pillars and wooden by compression, that are the supporting structures; once the vertical structures are fixed, the longitudinal and transversal poles are the support for the floor and roof wooden pieces, stabilizing the building structure.With the main structure of the building done, the riverside people place its cover. This may be of straw, asbestos, zinc, fibro-cement or aluminum, allowing them to work, the floor, gaskets and placing window frames in the shadow cast.As Mr. Napoleão says: “Here, the roof is done first, and then we work on the floor coating, so that it does not receive the heat of the sun.In such case, the floor covering spikes up, due to the insufficient drying period.”The treatment that is applied to the wood in this region is rudimentary, distinct from the professional industries of wood commercialization in Brazil, where the wood is considered dry with a humidity rate of 12% to 15%. Mr. Bernardino reports that in Riverside buildings, the drying time is practically null. The wood is used green with a 33% humidity rate, the same humidity rate of wood when it is removed from the forest. This fact causes several problems in the building, among them the rotting and the retraction. He notes that to prevent the cracks, "[he] nails the wood boards as close as possible to one another". One of the cultural beliefs of this population is that when the wood is removed under the moonlight, it will be spoiled. They emphasize that woods such as Itaúba (MezilaurusItaúba), Louro (Bastardiopsisdensiflora), Andiroba and Maçaranduba are strong, and even though they are still wet, they are resistant to pests and bugs. The field work indicated that the distance from the floors in the stilt houses to the environment is of about 1,5 meters, because the Riverside people have been raising their houses each time more, due to the influent climatic changes occurred over the last decades that directly interfered in the volume of water and in the floods of the rivers of the Amazon region. Another factor that is less influent, but also acting upon the housing, is the accrued sediments (sand) left in the rivers’ channels due to the Waters coming down (ebb tide); therefore, these landscapes are extremely dynamic [10]. The sandy soil is a soil with little cohesion, that is, its grains are easily separable from one another when dried and with a temporary cohesion when humid. This fact accelerates the problems of global stability of the buildings in stilt houses, once their foundations is superficial, and the houses are subjected to the movement that happens in the soil due to the annual floods. Another point taken during the field trip was the lack of stability of the buildings that in general do not have cross bracing. These two factors result in the observed problems like the houses with inclined pillars, or that lack any support to the beam whatsoever, see Fig.8. Figure 8 - shows the dislocated pillars and flooded level of water. Source: Picture by Ana Carolina Brugnera. Current researches highlight the importance of the Housing Project in considering sustainable parameters for the comfort of the residents, aiming at a more durable building, so that to increase the life time of a building, among other factors integrating bioclimatic concepts, like cross ventilation [11].As of the durability of the Riverside houses, some points observed therein can be highlighted, such as: the wooden pillars in general are directly dug in the soil, which speeds up the rotting process over the course of time. In this case, some communities cut the pillars and elevate the building, in new wooden pillars. In general, the wet areas, like the bathroom and the kitchen sink are located outside the houses. Another related point, which directly affects the durability of the riverside housing, is the fact that most houses present small eaves. It is known that the farther the wood is from the water, the longer the building may last. Another important aspect is the shape and composition of the gasket.In Manacapuru, the majorityof the houses present wooden boards nailed upwards. During the floods and the period of rains, these boards get rotten in their foundation, demanding the removal of the whole board for maintenance.These factors accelerate the wooden houses degrading process and directly impact the forest cycle of life. For some decades, when in this Amazon region, the access to industrialized constructive elements was restricted, the cover of the houses was made of straw, material that provided them with a fresher environment to the building’s interior. Over the last years, new elements made it to the region, the riverside population adopted the aluminum and zinc to build its cover. According to Oliveira Junior [12] this roof tile when curled fits in a small boat called fast boat for local transportation, and so, this element easily arrives at the more isolated locations.
  • 7. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 25|P a g e However, according to measurements done in site, the aluminum roof provides a big thermal discomfort inside the buildings, at several times with an internal temperature being higher than the external. For instance, according to readings performed by our thermometers in site, at Mr. Napoleão’s residence, the temperature in the internal environment registered 34°C and on the aluminum roof it was 50°C, while the external temperature in the environment was 29°C.Mr. Napoleão’s house presented a porch turned towards the River and eaves a little bit larger than those normally found in the region. It can be noted that the higher temperatures directly affect the quality of life of those who live there. The majority of the houses in the region needs to go through a process of recovery, on an average of a 15-year basis. This is considered a very short period for a housing cycle of life. This is a distinct reality from that in the Brazilian Southeast cities, where housing is designed to last more than one generation or century. At the same time, this reality is impacting on the life of the riverside people, since many times due to the nature phenomena, they need to rebuild a new house.As the study of Association “Wood for Good” points out, the durability of a wooden building when well designed may compete with brick, concrete and steel buildings [13]. V. FINAL CONSIDERATIONS The researchdemonstrates the importance of field trips and the participation of the Riverside community for the understanding of the cultural characteristics and the problems the population copes with[14].The importance of the involvement of different researches, with the communities, with the valorization of the concept of housing and an adequate knowledge of the architecture design. Therefore, elements that enhance comfort, building durability and technical development of the wood are sought, instructing community officials to understand how to work with the wood in the building.We observed the importance of a joint action, for the understanding of the wood and with an adequate and durable housing design, thus extending the cycle of life of the Riverside buildings, and decreasing the impact on the florets.As an example, we can highlight a few points to a longer durability of the building: a concrete foundation; pillars with variable heights, sensible to the water level, use of porches and larger eaves, board gaskets nailed upwards. To amplify the global stability of the Riverside people, they should recover the elements of cross bracing that over the course of time have been lost. In thermal comfort, the importance of tracing back the bioclimatic techniques with cross ventilation and chimney effect to minimize the heat near the aluminum tile, or working with a double- aired roof. It is highlighted the relevance of techniques that work with the development of local materials, such as natural fibers for the improvement of the housing, so it is not needed to import industrialized materials that are not adequate to the weather.The importance of joint actions among the universities, governments, communities and associations that enable the implementation of technical courses on wood and industries in the region, with the production of wooden components, seeking to determine the durability and the quality needed to tend to the riverside people’s needs. As an example, we highlight the laminated glued wood, laser cut wood, closing panel factories, with humidity control. REFERENCES [1]. BECKER, Bertha (2009). Amazônia. In: Magazine National Geographic. Disponível em http://planetasustentavel.abril.com.br/notici a/ambiente/conteudo_419750.shtml?func=> acesso em 10. Agôs. 2015. [2]. COHEN et al. Habitação saudável e ambientes favoráveis à saúde como estratégia de promoção da saúde. Revista de saúde coletiva.vol.12 no.1 Rio de Janeiro Jan./Mar. 2007. [3]. SCHNEIDER, R.; ARIMA, E.; VERÍSSIMO, A.; BARRETO, P. S. Jr (2000). Amazônia Sustentável: limitantes e oportunidades para o desenvolvimento rural. Brasília: Banco Mundial; Belém: Imazon, 2000. [4]. JUNK, W. J.; BAYLEY, P. B.; SPARKS, R. E. The flood pulse concept in river floodplain systems. Canadian Special Publication of Fisheries and Aquatic Sciences, v. 106, p. 110-127, 1989. [5]. ROBRAHN-GONZÁLEZ, Erika Marion (2013). A Construção do meio ambiente cultural: reflexões e práticas no Brasil. In JARDIM, Jean (Org.); Direito, Educação, Ética e Sustentabilidade: Diálogos entre os vários ramos do conhecimento no contexto da américa Latina e do Caribe – Vol. 2. Goiânia: Instituto Tueri, 2013. [6]. BRUGNERA, Ana Carolina. Meio ambiente cultural da Amazônia brasileira: dos modos de vida a moradia do caboclo ribeirinho [Dissertação de Mestrado]. São Paulo: FAU-Mackenzie, 2015. [7]. FERNANDES, Carolina Trindade. Moradia cabocla ribeirinha. Manaus: Iphan/AM, 2009.
  • 8. Célia Regina Moretti Meirelles.et.al. Int. Journal of Engineering Research and Applicationwww.ijera.com ISSN : 2248-9622, Vol. 6, Issue 12, ( Part -3) December 2016, pp.19-26 www.ijera.com 26|P a g e [8]. BOLLE, Wille; CASTRO, Edna; VEJMELKA, Marcel (Org.) (2010). Amazônia: Região universal e teatro do mundo. São Paulo/SP: Editora Globo. [9]. BECKER, Bertha (2013). A urbe amazônida: a floresta e a cidade. Rio de Janeiro/RJ: Ed. Garamond Ltda. [10]. GARCEZ, Danielle Sequeira. BOTERO, Jorge Iván Sánches. FABRÉ, Nidia Noemi (2010). Fatores que influenciam no comportamento territorial de ribeirinhos sobre ambientes de pesca em áreas de várzea do baixo Solimões, Amazônia Central, Brasil. In Boletin do Museu Paranaense Emílio Goeldi. Ciências Humanas. Belém, v. 5, n. 3. Set-dez, 2010. [11]. KEELER, M.; BURKE, B. Fundamentos de Projeto de Edificações Sustentáveis. Porto Alegre: Bookman, 2010. 362 p. [12]. OLIVEIRA JUNIOR (2009), Jair Antônio de. Arquitetura Ribeirinha sobre as águas da Amazônia: o habitat em ambientes complexos [dissertação]. São Paulo: FAU/USP. [13]. TRADA (2013). Reusable and Adaptable Wood Structure. London. Wood for Good, TRADA, 2009. Disponível em <www.woodforgood.com> acesso em 20 jan. 2013. [14]. Gratefulness To MACKPESQUISA for financial support