The document provides details on a proposed housing development for the UNC Coastal Studies Institute. It includes 11 residential structures organized along a shared boardwalk and bike path. The structures vary in size from one to three stories and are designed for flexibility to accommodate different types of residents, from students to families to researchers, for stays of various lengths. Sustainable design strategies like solar orientation, wind protection from surrounding forests, and renewable energy generation are incorporated into the site planning.
6. 6
Our initial response to this site, in a
boathouse proposal, was to express
the horizontality of the landscape. We
proposed a line on the landscape in
the form of a bridge.
THE HORIZONTAL
AXIS
THE HORIZONTAL
AXIS
7. 7
With this project we realized that the
landscape is more nuanced. Vertical
elements that break the horizon
are few and scattered, but they are
special moments and means of shelter
against a harsh landscape. We sought
to achieve this essence by building not
in the plain, but in the forest.
THE VERTICAL
AXIS
THE VERTICAL
AXIS
12. 12
Flood Water at 10’
This diagram shows the portions of the site that would be flooded 10’ above sea level, which is the requried elevation for
structures based on the Base Flood Elevation (8’), Freeboard requirements for Dare County (which add an additional foot), and
the International Building Code for buildings in Coastal A Flood Zones (which add another foot).
13. 13
Prevailing Winds
This diagram shows the minor prevailing winds coming form the northeast during September and October, and the major
prevailing winds coming from the southwest from November to August.
14. 14
No-Build Zone and Setbacks
This diagram shows the three major setbacks on the site, all measured from the edge of the wetlands: a 30’ CAMA setback, a
50’ DWQ setback, and a 75’ AEC setback.
18. 18
IMPORTANT
DEFINITIONS
IMPORTANT
DEFINITIONS
Base Flood Elevation (8’)
The elevation of the base flood, including wave height,
relative to the National Geodetic Vertical Datum, North
American Vertical Datum, or other datum specified on the
Flood Insurance Rate Map.
Freeboard (+1’)
Dare County’s required height to add to base flood elevation,
calculated below the bottom of the lowest horizontal
structural member. This must be added to any elevation
required by the IBC. IBC adds an additional 1’ requirement,
meaning that the bottom of the lowest horizontal structural
member must be at a 10’ elevation.
Flood Zone AE
Flood insurance rate zone used for the 1-percent-annual-
chance floodplains that are determined for the Flood
Insurance Survey (FIS) by detailed methods of analysis.
In most instances, Base Flood Elevations (BFEs) derived
from the detailed hydraulic analyses are shown at selected
intervals in this zone. Mandatory flood insurance purchase
requirements apply. AE zones are areas of inundation by
the 1-percent-annual-chance flood, including areas with
the 2-percent wave runup, elevation less than 3 feet above
the ground, and areas with wave heights less than 3 feet.
These areas are subdivided into elevation zones with BFEs
assigned. The AE zone will generally extend inland to the
limit of the 1-percent-annual-chance Stillwater Flood Level
(SWEL).
20. 20
Interior Finishes
Interior finishes, trim, and decorative materials must be
below design flood elevation
Interior Environment
Openings for under-floor ventilation may meet flood
opening requirements of ASCE 24 provided that they are
designed/ installed in accordance with ASCE 24 standard (see
attachments)
Exterior Walls
Exterior walls below flood elevation must be constructed
with flood damage-resistant materials. Wood must be
pressure-preservative treated or decay-resistant heartwood
of redwood, black locust, or cedar.
If potentially exposed to wave action, electrical, mechanical,
and plumbing system components may not be mounted or
penetrate through breakaway walls
Soils and Foundations
Fill must be placed, compacted, and sloped to minimize
shifting, slumping, and erosion during the rise of floodwater.
Must not exceed a slope of 2H:1V
Encroachment on floodways and flood hazard areas cannot
increase the design flood elevation more than 1 foot at any
point
Finished ground level of an under-floor space such as a crawl
space must be equal to or higher than the outside finished
ground level on at least one side
Site improvement
Sewer and water facilities must be designed in a way that
minimizes or eliminates infiltration of floodwaters into
the systems, and discharge from the systems into the
floodwaters. Storm drainage must convey the flow of surface
waters to minimize damage to persons/property.
Streets and sidewalks must be designed to minimize potential
for increasing or aggravating flood levels
Manufactured Homes
Defined as a structure that is transportable in one or more
sections, built on a permanent chassis, or designed for use
without a permanent foundation. Includes mobile homes,
park trailers, travel trailers, and similar transportable
structures that are placed on a site for 180 consecutive days
or longer.
Lowest floor must be elevated above design flood elevation.
Must be placed on permanent, reinforced foundations.
Must be anchored to an anchored foundation system in a way
that resists flotation, collapse, and lateral movement. Use of
over-the-top or frame ties to ground anchors is acceptable.
Tanks and Detached Accessory Structures
Underground tanks must be anchored to prevent flotation,
collapse, or lateral movement
Above ground tanks must be at or above the design flood
elevation, or anchored to prevent flotation, collapse, or
lateral movement
Tank inlets and vents must be at or above the design flood
elevation, or fitted with covers designed to prevent inflow
of floodwater or outflow of contents. They must also be
anchored.
Detached accessory structures must be anchored. Fully
enclosed accessory structures must have flood openings to
allow for automatic entry and exit of floodwaters
IBC CODES +
REGULATIONS
IBC CODES +
REGULATIONS
21. 21
slab-on-fill Perimeter Wall
(Crawlspace)
Open Foundation
(Piers / Posts / Columns)
Open Foundation
(Piles)
Foundation Restrictions: Coastal A Flood Zone
Lowest Floor Elevation
Floor Framing
BFE + 1’
Foundation Element
FEMA Quick Reference Guide, 2012
25. 25
Context
Similar to our site, Loblolly House
is positioned within the trees. The
wooded context is expressed by the
material pattern of its cladding and the
timber columns it stands on. The house
opens up to its environment via full-wall
operable windows and small porches
that project outside the mass of the
home itself. Extensive glazing lets in
views of the woods while also emitting
light at dusk such that the house
becomes a luminous volume.
Elevated
The Loblolly house resolves what
could be an awkward elevated height
by elongating itself in one direction in
order to stay narrow in the other. This
minimizes its footprint and therefore its
perceived scale.
Site Plan
The Loblolly House’s is a volume that
engages its site via fenestration: glazing,
operable membranes, and an empty
first level that allows the site to pass
beneath.
27. 27
Site Plan
Unlike the Loblolly House, the House on
Hoopers Island engages its site through
the placement of its masses. Light and
air pass through the masses and create
space between the volumes, while
elevated pathways weave in and out.
Unlike the Loblolly House, the buildings
remain largely sealed.
Elevated
The larger scale of this program is
resolved by a smaller elevation above
the ground, such that the structure is
not visible and the volumes appear to
be hovering.
Membrane
Each volume is treated like a tube
wrapped in opaque material, but open
at the ends for targeted views.
28. 28
ALLANDALE
HOUSE
ALLANDALE
HOUSE
William O’Brien Jr.
Materiality
Like the individual volumes of the House
on Hoopers Island, The Allandale House
is also treated like a tube. It is clad with
dark standing seam aluminum except at
its ends, where a dramatic view either
into or out of the building occurs. The
contrast between what is opaque and
what is glazed is further emphasized by
the color contrast between the black
standing seam aluminum and the white
mullions supporting the transparent
glazing.
29. 29
LEEPER
STUDIO
LEEPER
STUDIO
Charles Rose Architects
New Smyrna Beach, Florida
Site Plan
An elevated boardwalk links the
individual masses of the Leeper Studio.
The form of the boardwalk itself
intersects with the masses at ad-hoc
angles, such that it becomes difficult to
distinguish whether the buildings or the
boardwalk are more figural.
31. 31
Materiality
Like some of the previous precedents,
the Matchbox House opens itself at its
ends for views and accessibility. But
rather than being totally glazed at these
ends, it is still largely opaque but out of
a different material pallatte. Standing
seam aluminum as a wrapper changes
to metal panels and wood cladding on
these ends. Different materials take
on different geometric forms to create
an interesting elevation. The interior
is largely white and flat, creating a light
and airy space along which light can
bounce to the vaulted spaces on the
interior.
Program
The program of the Matchbox House
is fit into a volume that is not only long
and narrow, but tall and angled. Spaces
are formed by the compression of
space inward and the release of space
upward.
36. 36
Fostering Community
The atmosphere of the Coastal Studies
Institute is heavily influenced by both
the community created within the
campus bounds and the surrounding
community of Roanoke Island. Staff
congregates in the boathouse for oyster
roasts, researchers collaborate at local
cafes, some bike to work, some even
kayak. Our proposed bike path, along
which the residences are organized,
is an opportunity to incorporate the
broader community into the CSI
campus.
SITE
CONCEPT
SITE
CONCEPT
Experiencing the Site
The CSI campus exists now as a
research building and a boathouse.
These are linked by a series of
landscaped retention ponds through
which people can meander along
small footpaths from one to the other.
The experience is one of openness,
magnified by the immense scale of
the flat, surrounding landscape. We
sought to both preserve this expereince
and create a new one by creating a
residential complex not on the existing
site, but in a very different one: a
wooded area adjacent to the main
campus.
This presents an entirely new and
unexpected experience of the site:
from a lofted perspective amidst the
trees. Each building is oriented to
take advantage of views to the north
(woods) and south (Croatan Sound).
These north-south views are more
advantageous from a solar perspective
than the east-west views offered on the
main campus.
This land is owned by the state of
North Carolina and could feasibly be
purchased for use as CSI residences.
Harnessing the Site
Placing the residential complex in the
woods offers many advantages. The
northern trees provide protection from
cooler northerly winds in the winters,
and intense beam light from the south
and west during the summers. The land
elevation minimizes the height each
building must be elevated by as a flood
prevention strategy.
Leaving the main campus open allows
for an unobstructed wind pattern
through the site, and therefore an
opportunity to harness wind power
to offset the electrical needs of
our proposed residences. Our two
proposed wind turbines are placed
prominently along the bike path
as objects to be celebrated and
meandered through.
Additionally, this site plan creates
distance between living and
working facilities, which is not
only psychologically beneficial, but
physiologically beneficial through
creating opportunities to commute by
foot or bicycle along the proposed path.
42. 42
Circulation
This diagram shows the proposed bike path that leads from the broader community through the residences and into the
main CSI campus
43. 43
Renewable Energies
This diagram shows where renewable energy is generated. Two wind turbines along the bikepath act in conjunction with a
photovoltaic array atop the existing CSI building, which is already equipped to support such an array.
44. 44
Potential Residents
The Coastal Studies Institute has a
diverse range of visitors, researchers,
and students, all potentially requiring
different longevities and styles of on-
campus residence. These include:
Students
Shared facilities
Several weeks to months of residence
Researchers
Private facilities
Several weeks to months of residence
Visiting Families
Private facilities
Several days to weeks of residence.
BUILDING
CONCEPT
BUILDING
CONCEPT
A Concept of Versatility
Rather than creating a scheme of
single-family residences or multi-
student dormitories, we sought a
solution that could accommodate
these different longevities and
styles of residence. We created 11
residential structures that can be
categorized into three types:
Three Story Scheme
Number of Units: 5
Unit Capacity: 6 - 8 persons
Total Capacity: 30 - 40 persons
Two Story Scheme
Number of Units: 4
Unit Capacity: 3 - 4 persons
Total Capacity: 12 - 16 persons
Accessible One Story Scheme
Number of Units: 2
Unit Capacity: 2 - 4 persons
Total Capacity: 4 - 8 persons
Creating a Community
Because community is a valuable
residential resource for all groups
represented here, we consolidated
these various residentail options along
a common boardwalk that includes
an open, accessible, screened-in
community pavilion for residents’
use. All first floors are at the same
elevation to maintain accessibility
between residences.
TOTAL CAPACITY:
46 - 64 PERSONS
56. 56
Minimum Capacity: 2 persons
Maximum Capacity: 4 persons
Total Area: 1,573 sqft
ACCESSIBLE
ONE STORY
SCHEME
ACCESSIBLE
ONE STORY
SCHEME
57. 57
Accessible First Floor
Area: 1,573 sqft
Private Open Porch
Private Screened Porch
Water Closet
1 - 2 Person Bedroom
1 - 2 Person Bedroom
Mechanical
Kitchen
Dining
Living
Public-Facing Open Porch
66. 66
STRUCTURESTRUCTURE
Steel Frame
Using our three-story scheme, the
most structurally complex of the
series, we assessed several possible
structural solutions. A steel frame
was the most viable solution provided
it overcome two serious obstacles:
corrosion and expense.
To prevent corrosion, we clad the
building in a continuous envelope of
thermal and moisture protection. No
steel structure is exposed.
To minimize expense, we used
moment connections only on the open
first level, switching to pin connections
with lateral reinforcement in the upper
floors to protect against potentially
high wind loads.
The foundation system is a series of
concrete piles placed on pile caps,
providing both vertical stability and
preventing the tall, rigid structure
from overturning under high wind
loads.
67. 67
Lateral Stability
Embodied Energy
Cost
Large Equipment
Like Systems
Longevity /
Durability
Mantenance
Wind / Hurricane
Resistance
Aesthetics
Steel with
Concrete Floor
Slabs
Timber Concrete with
CMUs and Open
Web-Joists
Concrete with
Timber Framing
+
-
-
-
+
+
-
+
+
-
+
+
+
+
_
+
-
+
+
-
_
_
+
+
+
+
-
-
-
_
_
-
+
+
-
+
Structural
System
Evaluation
68. 68
First Floor:
Steel Frame with Moment Connections
Concrete Floor Slab
Foundation:
Concrete piles with pile caps
69. 69
Upper Floors:
Steel Frame with Pin Connections
Concrete Floor slabs
Lateral Reinforcement:
Steel Beams with Pin Connections
72. 72
Aware
Awareness means knowing what your
strengths and assets are, what liabilities
and vulnerabilities you have, and
what threats and risks you face. Being
aware is not a static condition; it’s the
ability to constantly assess, take in new
information, reassess and adjust your
understanding of the most critical and
relevant strengths and weaknesses and
other factors on the fly. This requires
methods of sensing and information-
gathering including robust feedback
loops, such as community meetings
or monitoring systems for a global
telecommunications network.
Diverse
Diversity implies that a person or
system has a surplus of capacity
such that it can successfully operate
under a diverse set of circumstances,
beyond what is needed for every-day
functioning or relying on only one
element for a given purpose. Diversity
includes redundancy, alternatives, and
back-ups, so it can call up reserves
during a disruption or switch over to
an alternative functioning mode. Being
diverse also means that the system
possesses or can draw upon a range
of capabilities, information sources,
technical elements, people or groups.
Self-Regulating
This means elements within a system
behave and interact in such a way as
to continue functioning to the system’s
purpose, which means it can deal with
anomalous situations and interferences
without extreme malfunction,
catastrophic collapse, or cascading
disruptions. This is sometimes called
“islanding” or “de-networking”—a kind
of failing safely that ensures failure is
discrete and contained. A self-regulating
system is more likely to withstand a
disruption, less likely to exacerbate
the effects of a crisis if it fails, and is
more likely to return to function (or be
replaced) more quickly once the crisis
has passed.
Integrated
Being integrated means that
individuals, groups, organizations
and other entities have the ability to
bring together disparate thoughts
and elements into cohesive solutions
and actions. Integration involves the
sharing of information across entities,
the collaborative development of
ideas and solutions, and transparent
communication with people and
entities that are involved or affected.
It also refers to the coordination of
people groups and activities. Again,
this requires the presence of feedback
loops.
Adaptive
The final defining characteristic of
resilience is being adaptive: the capacity
to adjust to changing circumstances
5 CHARACTERISTICS OF
RESILIENCY
5 CHARACTERISTICS OF
RESILIENCY
during a disruption by developing new
plans, taking new actions, or modifying
behaviors so that you are better able
to withstand and recover from a
disruption, particularly when it is not
possible or wise to go back to the way
things were before. Adaptability also
suggests flexibility, the ability to apply
existing resources to new purposes or
for one thing to take on multiple roles.
From the Rockefeller Foundation
AWARE
DIVERSE
SELF-REGULATING
INTEGRATED
ADAPTIVE
75. 75
1. Standing Seam Aluminum
The east and west faces of each building
are clad with light-gray standing seam
aluminum for both durability in wind
and water events and reflectivity against
the summer sun. This cladding wraps
around the building, resulting in a very
low glazed-to-opaque ratio (example
shown is 8%).
2. Fiber Cement Board Rainscreen
The southern face is clad with a higher
ratio of opaque material to reduce
solar gain during the summer. The
cladding here is a light tone of fiber
cement board, finished to resemble
wood, for both durability and wind and
water events and reflectivity against
the summer sun. Its installation as a
rainscreen separates the material from
the building itself, reducing thermal
bridging between the exterior and the
interior.
3. Double-Insulated Glass
Double-insulated glass saves energy on
conditiong.
4. Opaque Door
An opaque door controls solar gains.
5. Louvers
Horizontal louvers protect the glazing
on the south face from solar gains.
6. Cross Ventillation
Cross ventillation naturally cools and
circulates air thorughout each building,
both in plan and section.
7. Continuous Insulation
Continuous insulation wraps around
the entire building beneath the standing
seam aluminum cladding.
8. Rock Infiltration Pit
Rock infiltration pits slow the runoff
from the building roofs, preventing
erosion. Additionally, they capture and
contain debris before it might wash into
the wetlands.
9. Stack Effect
A window in the loft allows hot air from
the rest of the building to escape on
days when the humidity level permits.
10. Porous Pavers (Not Shown)
Porous pavers reduce the surface area
of pavement and therefore prevent
erosion.
SUSTAINABLE
STRATEGIES
SUSTAINABLE
STRATEGIES
76. 76
HERS INDEXHERS INDEX
57
56TWO STORY
SCHEME
53THREE STORY
SCHEME
ONE STORY
SCHEME
44% more energy efficient than a
standard new home.
47% more energy efficient than a
standard new home.
43% more energy efficient than a
standard new home.
77. 77
MECHANICAL
SYSTEMS
MECHANICAL
SYSTEMS
HVAC
Because each building is continuous in
section, and conditioned air can pour
from floor to floor, a mini-split system
would be inefficient. And although
radiant conditioning would couple well
with slab floors, electric water heating
is also very inefficient. Therefore, weis also very inefficient. Therefore, we
chose a centralized system mediatedchose a centralized system mediated
by means of an air-sourced heatby means of an air-sourced heat
pump. A two-speed or variable-speedpump. A two-speed or variable-speed
compressor can be incorporated forcompressor can be incorporated for
more zoning control, and thereforemore zoning control, and therefore
more efficiency.more efficiency.
Water HeatingWater Heating
Heating water with electricity is moreHeating water with electricity is more
inefficient than with natural gas, butinefficient than with natural gas, but
natural gas is not readily available onnatural gas is not readily available on
the site. Rather than bringing in gasthe site. Rather than bringing in gas
tanks, which is unsustainable long-term,tanks, which is unsustainable long-term,
we will use the electricity producedwe will use the electricity produced
on-site to heat water electrically. Theon-site to heat water electrically. The
temperature will be mediated by meanstemperature will be mediated by means
of an air-sourced heat pump.of an air-sourced heat pump.
78. 78
Total 107,712 kWh per Year
Total 127,116 kWh per Year
ENERGY USE
+ GENERATION
ENERGY USE
+ GENERATION
Three Story Scheme
Annual Electrical Use
12,327 kWh
x 5 units = 61,635 kWh
Two Story Scheme
Annual Electrical Use
11,475 kWh
x 4 units = 45,902 kWh
One Story Scheme
Annual Electrical Use
9,789 kWh
x 2 units = 19,579 kWh
Annual Energy Use
Wind Turbines
Annual Electrical Generation
2 turbines
26,183 kWh
Photovoltaics
Annual Electrical Generation
272 panels
81,529 kWh
Annual Energy Generation
MEETS 85% OF
ANNUAL ENERGY
NEEDS
79. 79
Electrical Use for Lighting
Electrical Use for HVAC
Electrical Use for Water Heating
Electrical Use for Applicances
Electrical Use for
Miscellaneous Personal Needs
Electrical Savings
compared to an average household
of comparable size
Three
Story
Scheme
Two
Story
Scheme
One
Story
Scheme
3390 kWh
3045 kWh
1416 kWh
2825 kWh
1650 kWh
2812 kWh
2773 kWh
1416 kWh
2825 kWh
1650 kWh
2398 kWh
1500 kWh
1416 kWh
2825 kWh
1650 kWh
9489 kWh
$1,044
-567 kWh
-$62.37
1119 kWh
$123
Annual Household Summary
80. 80
First Floor
Living
Kitchen
Stairway
Mechanical
Water Closet
Screened Porch
Unscreened Porch
Second Floor
Hallway
End Bedroom
Central Bedroom
Stairway
Water Closet
Third Floor
Hallway
End Bedroom
Central Bedroom
Stairway
Water Closet
Loft
Study / Work Space
Stairway
Total
Area
(sqft)
Required
Lumens
Annual
Electric Use
(LED) (kWh)
533
143
58
61
41
177
81
128
109
122
58
50
128
109
122
58
50
289
29
2,292
Three Story Scheme
ENERGY USE:
LIGHTING
ENERGY USE:
LIGHTING
Annual
Electric Cost
(CFL)
19,721
6,578
290
2,806
1,148
6,549
2,997
640
3,052
3,416
290
1,400
360
3,108
3,416
290
1,400
10,693
145
68,299
744
248
83
165
83
248
165
83
165
165
83
83
83
165
165
83
83
414
83
3,390
$81.87
$27.29
$9.10
$18.19
$9.10
$27.29
$18.19
$9.10
$18.19
$18.19
$9.10
$9.10
$9.10
$18.19
$18.19
$9.10
$9.10
$45.48
$9.10
$372.94
81. 81
First Floor
Living
Kitchen
Stairway
Mechanical
Water Closet
Screened Porch
Unscreened Porch
Second Floor
Hallway
End Bedroom
Central Bedroom
Stairway
Water Closet
Loft
Study / Work Space
Stairway
Total
Area
(sqft)
Required
Lumens
Annual
Electric Use
(LED) (kWh)
533
143
58
61
41
177
81
128
109
122
58
50
289
29
1,879
Two Story Scheme
Annual
Electric Cost
(CFL)
19,721
6,578
290
2,806
1,148
6,549
2,997
640
3,052
3,416
290
1,400
10,693
145
59,725
744
248
83
165
83
248
165
83
165
165
83
83
414
83
2,812
$81.87
$27.29
$9.10
$18.19
$9.10
$27.29
$18.19
$9.10
$18.19
$18.19
$9.10
$9.10
$45.48
$9.10
$309.27
Living
Kitchen
Mechanical
Bedroom 1
Bedroom 2
Water Closet
Screened Porch
Unscreened Porch
Total
Area
(sqft)
Required
Lumens
Annual
Electric Use
(LED) (kWh)
559
146
64
110
105
57
308
224
1,573
One Story Scheme
Annual
Electric Cost
(CFL)
20,683
6,716
2,944
3,080
2,940
1,596
14,168
8,288
60,415
744
248
165
165
165
83
496
331
2,398
$81.87
$27.29
$18.19
$18.19
$18.19
$9.10
$54.58
$36.38
$263.79
82. 82
Monthly
Temperature
Change (F)
Monthly
Electric Use
(kWh)
ENERGY USE:
HVAC
ENERGY USE:
HVAC
January
February
March
April
May
June
July
August
September
October
November
December
Annual Total
Monthly
Electric Cost
-26.5
-24.5
-18.5
-10
-2
5.5
9
8.5
4
-6
-14.4
-22.5
Three Story Scheme
2 Ton, 13 SEER Heat Pump, R-410A Refrigerant
Goodman GSZ130241
271
251
189
102
20.5
361
591
558
263
61
147
230
3,045
$29.82
$27.57
$20.82
$11.25
$2.25
$39.72
$65.00
$61.39
$28.89
$6.75
$16.21
$25.32
$335.00
Monthly
Temperature
Change (F)
Monthly
Electric Use
(kWh)
January
February
March
April
May
June
July
August
September
October
November
December
Annual Total
Monthly
Electric Cost
-26.5
-24.5
-18.5
-10
-2
5.5
9
8.5
4
-6
-14.4
-22.5
Two Story Scheme
2 Ton, 13 SEER Heat Pump, R-410A Refrigerant
Goodman GSZ130241
217
201
151
81.8
16.4
357
585
552
260
49
118
184
2,773
$23.86
$22.06
$16.66
$9.00
$1.80
$39.31
$64.33
$60.76
$28.59
$5.40
$12.96
$20.26
$305.00
91. 91
1. Wind Diversion
Each building has a vertical face that
is more vulnerable to wind loads. The
buildings have been arranged such
that these vertical faces are facing one
another, rather than being exposed
directly to strong winds. The sloped
faces divert the wind up and away from
these vulnerable points.
2. Aluminum Louvers
Aluminum louvers have been placed
on both the northern and southern
glazing not just for solar control, but
also to protect the glass from debris
during wind events. The louvers have
been concentrated on faces consisting
of large, irregularly shaped glass that
would be difficult or expensive to repair
or replace.
3. Elevation
Each building has been elevated to
3.5’ above sea level rather than the
required 2’ (land is already at Base
Flood Elevation. Dare County freeboard
requirements and IBC regulations
for the Coastal A Flood Zone add 2’
together). The extra 1.5’ accommodates
the maximum predicted sea level rise
over the next 80 years.
4. Tree Distance
Pine trees in this region tend to break
off at the boughs rather than splitting
in the middle, so the critical distance of
trees from each building is a factor of
the tree canopy, which averages 10’ in
diameter. Our buildings have been set
back from the trees to accommodate
this distance.
5. Water Shedding
The exterior cladding is made of
durable and steeply-sloped standing
seam aluminum in order to shed water
quickly, minimizing the risk of leakage.
The aluminum’s durability is an extra
protective measure against damage
from debris, which could also lead to
leakage.
HAZARD
MITIGATION
STRATEGIES
HAZARD
MITIGATION
STRATEGIES
92. 92
Most Threatening Natural Hazards:
Flooding
Hurricane
Nor’easters
Coastal Erosion
Consequences:
Loss of electrical power
Failure of the water distribution
system
Severance of roadway network
Creation of new ocean inlet
Necessity of mass care and feeding
operations
Evacuation of people from the county
Mass causality
Loss of continuity of government
DARE COUNTY
HAZARDS
DARE COUNTY
HAZARDS
“The built environment however is not as
resilient and does not possess these recuperative
capabilities. In natural disasters changes and losses
occur when human activity in the form of buildings,
infrastructure, agriculture and other land uses
are located in the path of the destructive forces of
nature. Communities impacted by natural hazards
often recover over a long period of time and at
great social and economic cost. “
-Dare County Hazards Mitigation Plan, 2010
Flooding
The site is located in Flood Zone A,
AE in which the base floodplain (100
Year Flood) is where the base flood
elevations are provided.
Flooding
Source
Stillwater
Elevations
Base Flood
Elevation
(Feet)
Atlantic Ocean/
Roanoke Sound
Atlantic Ocean /
Pamlico Sound /
Croatan Sound
Location
10-
year
50-
year
100-
year
500-
year
Roanoke
Island
Mainland
7.4 8.9 9.2 10.8
4.8 6.8 7.3 8.2
11-12
9-11
10
7-9
Dare County Flood Insurance Study, 1993
96. 96
1 Contracts, Document Review and Revision
28 days
2 Bidding and Contracts
25 days
3 Review Bids, Grading and Building Permits
22 days
4 Land Development, Clearing, Install Construction Entrance
22 days
5 Strip Top Soil, Excavation for Foundation
7 days
6 Foundation, Layout Footing, Inspections, Pouring
40 days
7 Certification of Foundation
8 Delivery and Waterproofing of Staging Areas
3 days
9 Concrete Slab Work
35 days
10 Rough Carpentry
55 days
Tree Felling Techniques
Tree Felling technique for minimum
impact on surrounding trees.
Removing Roots
Removing roots and clearing the site.
Leveling
Bring in soil and leveling
26’RootRadius
26’RootRadius
35’BuildingWidth
35’BuildingWidth
30’Setback
SupplyRoad
Wetlands
ExistingRoad
ExistingWoodlands
Site Clearing
97. 97
11 Termite Treatment
2 days
12 HVAC and Other Mechanical Installation
33 days
13 Plumbing
25 days
14 Electric
25 days
15 Alarms, Television and Audio Visual Installation
22 days
16 Exterior Insulation, Finishing
40 days
17 Drywall
36 days
18 Floor Finishing, Painting, Exterior Landscaping
36 days
19 Cleaning, Adding Shrubs and Additional Final Features
22 days
10’Canopy+8’Bikepath
35’Building
35’BuildingWidth
30’Setback
Wetlands
10’Canopy
ExistingRoad
TOTAL DAYS:
477
TOTAL YEARS:
1.34
Site Re-Planting
106. 106
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