This document provides a critical analysis of design options for renovating and extending the Birmingham Masonic Centre. It discusses three key issues: sustainability, design of the new roof, and the condition of the existing buildings. For sustainability, a rainwater harvesting system was selected over PV panels or heat recovery ventilation. A flat roof design was chosen over pitched or green roofs. For the party wall, rebuilding the entire wall was chosen over repairing or building a new adjacent wall to meet building regulations and structural needs of the new build.

1. BNV 6116 HRP Critical Analysis
60 Severn Street
HASNYAN HAIDER
S12777192

2. Critical Analysis BNV 6116 HRP
pg. 1
Contents
Introduction.................................................................................................................................2
Key Issue – Sustainability .............................................................................................................. 2
Option 1...................................................................................................................................3
Option 2...................................................................................................................................4
Option 3...................................................................................................................................5
Key Issues – Design....................................................................................................................... 6
Option 1...................................................................................................................................7
Option 2...................................................................................................................................7
Option 3...................................................................................................................................8
Key Issue - Existing Buildings Condition.......................................................................................... 9
Option 1................................................................................................................................. 11
Option 2................................................................................................................................. 11
Option 3................................................................................................................................. 12
Results....................................................................................................................................... 12
Lessons Learnt............................................................................................................................ 14
References................................................................................................................................. 16
Appendix.................................................................................................................................... 17
Word Count............................................................................................................................... 25

3. Critical Analysis BNV 6116 HRP
pg. 2
Introduction
Mr M Hilliard the owner of Birmingham Masonic Centre has asked us to help with his
project to update and extend his property. The project has come with its own unique
challenges, obstacles and new experiences. Appendix Figure 1
This project presented many limitations, it has provided a deeper understanding and
approach then previous projects I have faced. The extension was only specific sections.
Appendix Figure 2 & 3
The building is mid-Victorian constructed over three different time periods. The oldest part
of the building being the main two halls on the ground floor which date back to the 1827.
From here the building was rebuilt and the front façade was added. The building is listed
because it was the first synagogue in Birmingham.
Appendix Figure 4
Key Issue – Sustainability
As the client required the improvement of the buildings sustainable credentials with
optimising the most natural lighting and to include a ‘Grey Water Reuse system’ within the
building’s design, the sustainable aspect of the project was a crucial aspect to the project.
Appendix Figure 5
The Front Façade of the Building
In thisphotoyoucan see the
buildingsfeaturesand
characteristics

4. Critical Analysis BNV 6116 HRP
pg. 3
(Geolax,2009)
My main objective was to ensure that the client’s requirements were met in the best
possible and most optimal, while considering methods to enhance the requirements.
There were not many opportunities to include a passive sustainable method in improving
the sustainability. Appendix Figure 5
With technology consistently moving forward and towards a more sustainable future, there
are many options with new sustainable technologies for buildings. When considering which
sustainable technologies to incorporate into the design all factors were taken into
consideration.
Option 1
Solar PV panels are a very popular choice with sustainable technology, many people are
utilizing the suns power and installing solar PV panels to do so.
(Solarhelp, 2010)
Advantages
This method is clean green energy, and is provided free from the sun. There is hardly any
maintenance or operating cost so for the users of 60 Severn Street this would be essential.
They can be installed easily especially in the case of a flat roof. This would there for be
another plus point for adding it to the design.
The designer risk assessment which was conducted found that this method was one of the
least hazardous. This combined with the a feasibility study which was conducted found that
Example diagramof a grey
waterreuse system, which
was addedinto the designof
the buildingasrequested

5. Critical Analysis BNV 6116 HRP
pg. 4
due to the prices decreasing for this sustainable method and with government schemes in
place to help you pay for them this method would be beneficial for the building in terms of
costs.
Disadvantages
However a further study was conducted to the efficiency of the PV panels with the
practicality and it was found that this method highly depends on the amount of sun it is able
to absorb, so the location for the panels is crucial. Once the sun path of the most optimal
location of the panels in the design was uncovered I realised that due to the location of the
building and its new flat roof they will not be able to absorb enough sun to be at their
maximum potential.
Option 2
The second option I considered was a heat recovery ventilation system. I came to this choice
due to the buildings type. The building surveys lead me to discover that there was a
considerable amount of condensation, this combined with the uncontrolled room
temperatures due to the amount of heat loss being lost through the building’s design meant
a feature of this type would be beneficial. As I entered the basement you get a sense of high
humidity due to lack of air circulation.
(Fantech, 2015)
The sun path forthe locationof
60 SevernStreetisnotthe most
optimal forthe orientationfor
the building.

6. Critical Analysis BNV 6116 HRP
pg. 5
Advantages
The advantages of systemwould be practical for the building’s design and beneficial. It
supplies clean fresh air circulation throughout the building, energy efficient ventilation, it
helps to eliminate condensation which can prove to be a problem if not dealt with and
finally it adds to the buildings overall comfortable atmosphere.
Including this feature to a building also benefits building regulations which was another
requirement by the client. This method helps the building comply with part F for means of
ventilation, part L on the conservation of fuel and power.
Disadvantages
However the problem I found with this method is that it is not practical in the terms of
installation and maintenance. It can be quite costly depending on the dwelling and due to
the size of the Masonic Centre it would be. This combined with the fact many alterations
would have to be made to the building just for it to work effectively it seemed to be
impractical in terms of feasibility and time.
Option 3
The final method considered was a rain water harvesting system. Due to the design of the
building and all its different types of roofs I believe it would be very optimal to install a rain
harvesting systemon the new flat roof.
Advantages
The pitched roofs around allow for a slope for the rain to allocate itself onto the flat roof
along with the rain the flat roof collects itself. This method would utilize all the rain water
and use it ways efficient ways for the water use of the building.
(lowenergyhousing,2015)
The maintenance and installation costs are low. It is practical and can be used very
efficiently due to the building’s design and location, this is because works in the harvesting
Designimage of the
rain water
technology

7. Critical Analysis BNV 6116 HRP
pg. 6
systems favour. This sustainable method can also be combined with the ‘Grey Water Reuse
System’ which would further the buildings benefits.
Disadvantages
Nonetheless this option highly depends on the weather, due to this it will not always be
working efficiently. You will never be able to control the variables of water usage as the
weather is unpredictable.
Key Issues – Design
The design process of a project is influential to the outcome and end result, it is important
to make the right decisions and to do your research beforehand. As a designer it is
important that I meet all the needs required in the most resourceful way possible.
An image of the old First floor
An image of the new first floor plans. Appendix Figure 7
The main design issue I came across with this project was which style and type of roof
design to use for the new extension of the building. There were no exact requirements
made for the type of roof.
There are many different aspects to consider when choosing a type or design of roof, such
as cost, maintenance, life span and building regulations.

8. Critical Analysis BNV 6116 HRP
pg. 7
Option 1
The first design proposal I came across was to simply replicate the existing style of roof
already on the building which is a pitched roof. A pitched roof normally comprises of a
timber structure which come together to form a pitch.
Advantages
This would give the building a sense of uniformity. With pitched roofs there are many
variations and styles you could choose from for your design. Pitched roofs have a longer life
span then other roof types, they are stronger and better at weight distribution along the
roof. This all helps when weight is added such as snow.
Disadvantages
But with pitched roofs there is always an access problem. The results of the current
conditions survey on the building also indicated that the existing pitched roofs needed much
attention due to the condition they were already in. Pitched roofs also cost more than other
roofing methods.
Option 2
The second design was a flat roof. The design would consist of multiple layers on top of one
another on a flat surface or a slight angle of degree depending on your design. For 60 Severn
I’d recommend a strong long lasting roof design.
Advantages
As the flat roof option was the cheapest, this worked well with the feasibility study. The roof
allows for easier access. This option allows for more sustainable features to be added to the
flat roof.
A flats roof life expectancy tends to be around 10 years and was not theoretical. However it
was found that you could add layers on the flat roof to help with the life expectancy of the
roof, to help to structural integrity and performance.
Disadvantages
Conversely even though the initial cost is low there tends to be more maintenance with flat
roofs, the gutter system will have to be monitored to make sure it does not get blocked and
also the overall integrity of the roof will have to be checked to make sure there are no leaks
and it is still preforming efficiently.

9. Critical Analysis BNV 6116 HRP
pg. 8
Design view of the roof plan
Option 3
The third design is a green roof for the new build section. Green roofs are very economical
and are very architectural add to the buildings image and credentials. Appendix Figure 6
Advantages
The advances are the economical factor, it’s a new eco-friendly technology method which is
sustainable. Also it increases your roofs life expectancy up to 3x times the amount. This
design proposal allows open access to the roof and can be used as an enjoyable outside
space.
(Cookjenshel, 2013)
Disadvantages
However there are many complications with this design choice. The main obstacle would be
the planning permission needed for this choice, this would be difficult because the Masonic
centre is grade II listed. Appendix Figure 9
There are many costs with this choice, initial installation costs and maintenance costs. There
would also be a need for more structural support, and finally it would be difficult for the
users to service the roof space.

10. Critical Analysis BNV 6116 HRP
pg. 9
Key Issue - Existing Buildings Condition
As this project involved an existing building the current condition of the building therefore
plays an important role. A survey was conducted on the condition of the building, and I
realised that the current state is a vital issue. Appendix Figure 10
Photos of the existingconditionof the building
Exteriorwallsshowingsignsof damppenetration
Bricksout of place onthe exteriorwalls
Cracks inthe walls
Placeshave alreadybeenrepaired,youcanalsosee
manymore placesneed attentionto

11. Critical Analysis BNV 6116 HRP
pg. 10
Basementwallsandhowthe brickworkisdamaged
Ceilingof the rehearsal roomandyoucan see that itis
sagging
kitchenwallsshowsignof damp
Exposedroof space alongwith itselements
One of the main issues I found was to either repair certain elements or simply abolish and
rebuild new elements. This issue occurred with the party wall alongside the property.
The party wall shared with 60 and 62 Severn Street’s condition was highlighted as a priority
which needed attention. As the party wall itself plays an important role with the plans of the
project, it is imperative to make the right decision on how to rectify the issue.

12. Critical Analysis BNV 6116 HRP
pg. 11
I came across three viable options which were considered as possible routes of action for
the party wall.
Option 1
The first option was to repair the wall to its original form, under pin the foundation and
build on the wall upwards for the new build section of the building. This mean repairing the
walls structure, repointing the mortar where it was needed and replacing any segments.
Advantages
This options cost was lower than that of any other options and it also did not require much
labour for the amendments to be completed. With the wall returned to its original state this
would then benefit both users on either side of the party wall.
From the survey conducted it was noted that the building sharing the party wall may have
some asbestos infestation on their roof. If the wall was to be repaired on just the Masonic
Centre’s side, this would then keep the builders at less risk.
Disadvantages
However even though the costs low you must consider that with the wall repaired will not
meet requirements needed with the new build.
An additional point to consider is that the wall will have to meet building regulations
therefore it is likely that it would have to be updated to make it more thermal efficient. A
single brick cavity wall’s thermal efficiency does not meet current regulations. Appendix
Figure 13
Option 2
An alternative option considered was to build an entirely new wall up alongside of the
existing party wall within the boundaries of the property. This would then mean that there
On the leftanimage of
the existingpartywall,
the right showsthe
new plansforthe wall

13. Critical Analysis BNV 6116 HRP
pg. 12
would be less issue with party wall act and the property on the other side of the wall are
less likely to not have an issue.
Advantages
This new wall would meet all building regulations, it would belong only to the owners of the
masonic centre so you would not have to worry about any party wall issues. This option
allows for more design opportunities for the new wall.
Disadvantages
However this option was a more costly option but considering when the condition survey
was conducted, it was noted that the property adjacent to party wall could contain asbestos
on the roof. This was found to be highly likely considering the type of roof.
This option it would mean less space for the buildings extension and there is already an
issue with space availability.
Option 3
This option was to destroy the existing structure and rebuilding from the foundation up, this
would there for be a new wall which would meet all structural needs of the new build along
with meeting all current building regulations. Appendix Figure 11
Advantages
With this option I would be able to comply with all the up to date regulations for the new
wall, also with new technology to be included could make the wall energy efficient. This
would then help the buildings energy use by reducing heat loss.
Disadvantages
However this is a costly option and time consuming option. There is also the legal obstacles
which may appear with the fact that this wall is party wall.
Results
In retrospect to the design issue, a pitched roof was not practical use of the building, it also
limited the sustainable features which came with the design. The designer risk assessment
conducted showed there were more risks with this option rather than the others. Appendix
Figure 11
The option to include a green roof was just not practical, required too much maintained and
costs. The choice made was to go with a flat roof, the feasibility study found this to be the
cheapest method, it also gave more options in terms of sustainable feature which could be
incorporated in the design.
The option for sustainability I choose was the rain water harvest system, this could be used
in the new added toilets on each floor, and can be incorporated to work with the grey water
reuse system. This would then work well in the building and be the most useful.

14. Critical Analysis BNV 6116 HRP
pg. 13
Depending on the correct tank size, I would recommend a 500 litre tank, you could save on
average anything between 35% to 45% on your water bill, even up to 55% in rainy seasons.
Appendix figure 15.
(Freewateruk, 2015)
The buildings location meant that the PV panels could not utilise the suns energy to work
efficiently. According to money experts direct, ‘the average solar PV panel user saves
around £130 per year if the requirements are correct’. (Moneysavingexperts 2014)
The heat recovery system however would be beneficial for the building, but the plans for
the new design only included sections of the building which would be all new, so the
thermal efficiency of the new build would naturally perform better than that of the rest for
the building, and with a new window technology the condensation would not be a concern.
The third issue revolving around the existing condition was the party wall. I resulted in
choosing the option to rebuild the entire wall. The new party wall would provide better
overall thermal efficiency, you would not have to consider too much in the terms of
maintenance considering it is a new build. With the extra added support the buildings
integrity would therefore be increased allowing the building to be available for a longer
period, which was one of the client’s requirements. Simply repairing the wall will not meet
up to date building regulations, Part L will need the wall to meet new thermal efficient
values. Appendix figure 14. The option considered will have to satisfy these requirements:
 Decoration and renovation
 Fire protection
 Thermal resistance and changes to 'thermal elements'
 Weather Resistance
 Weight (Loading) (Planning Portal, 2015)

15. Critical Analysis BNV 6116 HRP
pg. 14
Lessons Learnt
I have improved my knowledge and understanding in the following competencies:
 Building pathology: I am now able to identify the types of defects found in the
different time periods of the building.
 Construction technology, environmental services, and sustainability: I now have a
better understanding of PV panels, the return of certain sustainable technologies,
and I now am able to critically compare by seeing which is the most optimal for the
purpose.
 Design and specification: I now have a better understanding of the need to connect
new to existing buildings along with the problems along the way.
 Inspecting: I have undertaken a measured survey as part of this process, which has
enhanced my inspecting competency.
 Legal and regulatory: I know have an understanding of the party wall act and the
requirements along with the various notices which need to be served for each
purpose.
 Mandatory competencies: client care appreciating the importance of developing the
clients brief to provide them with a solution which best suits their needs
 Communication: the production of different types of drawings for different types of
purposes.
 Team working: enhanced team working and information distribution to other
disciplinary.
 Code of conduct: reference to relevant RICS guidance such as the code of measured
practice, historic conservation and sustainable guidance
The first aspect of the project I would like to have changed is the knowledge I had going into
the design process. When I came to designing the new build I found myself stuck as to how
the original building was constructed and the elements of the building this meant by this
stage I had to do more research into the type of building and its details, because this all had
an impact on how I can design the new build.
With retrospect and hindsight with the issue regarding sustainability I would not have
chosen a rain water harvesting system. I have subsequently come across this a heat
recovery system to be a far better solution. At the time I was seduced by the idea of water
usage efficiency, is being one of the clients requirements a Grey water Reuse system I
thought at the time another Rain water harvesting systemwould then benefit the clients
require mentees further. However I didn’t fully appreciate the other possible technologies.

16. Critical Analysis BNV 6116 HRP
pg. 15
If I was to recreate the floor plans instead of leading the design with what is more practical
and trying to meet all the clients requirements I would have liked to had more building
regulations behind my design I would like to have had more statistics in the performance of
the building.
When it came round to the costings aspect I realised that my plans were quite costly and if I
was to go back and rearrange certain aspects I would like to have made it more affordable. I
would change certain design elements; for example in cases where I had reconstructing
entire elements of the building rather than adjust and using as much as the existing
structure as I possible. Appendix Figure Costings Table 12

17. Critical Analysis BNV 6116 HRP
pg. 16
References
1. Cookjenshel (2013), ‘Green Roofs’, Available at:http://cookjenshel.com/green-roofs/ ,
[Accessedon11th
April 2015]
2. Fantech(2015), ‘Benefitsof heatrecovery’, Availableat:
http://www.fantechhhv.co.nz/pages/whyVentilate.asp?page=HR ,[Accessedon10th
April
2015]
3. Free waterUK, (2015), ‘water-thebig picture’, Available at:[Accessedon12th
April]
http://www.freewateruk.co.uk/domestic-rainwater-I.htm,
4. Geolax (2009), ‘Grey Water Recycling Systems’, Available at:http://www.geolax.co.in/grey-
water-recycling-system.html,[Accessedon10th
April 2015]
5. HM Government,(2014),‘PartL’, Availableat:
http://www.planningportal.gov.uk/buildingregulations/approveddocuments/,[Accessedon
12th
April 2015]
6. Low energyhousing,(2015), ‘Low Energy Housing’, Availableat:
http://www.lowenergyhouse.com/rainwater-harvesting.html,[Accessedon11th
April 2015]
7. MoneySavingExperts,(2014), ‘should you buy themorget themfree’, Availableat:
http://www.moneysavingexpert.com/utilities/free-solar-panels,[Accessedon12th
April
2015]
8. PlanningPortal,(2015),‘ExternalWalls’, Availableat:
http://www.planningportal.gov.uk/permission/commonprojects/externalwalls,[Accessedon
12th
April]
9. PlanningPortal,(2013),‘Application forListed Building ConsentforAlterations,Extension or
Demolition of a Listed Building’, Availableat:
http://www.planningportal.gov.uk/uploads/1app/guidance/guidance_note-
listed_building_consent.pdf,[Accessedon12th
April]
10. Solarhelp(2010), ‘SolarPV panelsforyourhome’, Available at:http://www.solar-
help.co.uk/solar-panel-technology/solar-pv-photovoltaic.htm,[Accessedon11th
April 2015]
11. The GreenAge,(2012), ‘Whatis Grey water’,Available at:
http://www.thegreenage.co.uk/tech/greywater-recycling/,[Accessedon12th
April]

18. Critical Analysis BNV 6116 HRP
pg. 17
Appendix
Figure 1
Client’sBrief:
Client:
Mr M Hilliard,BirminghamMasonicCentre,60SevernStreet,Birmingham, B11QG
Date of instruction29th September2014
The Brief:
BirminghamMasonicCentre,are locatedina grade 2 listedbuildinglocatedat, 60 SevernStreet,
Birmingham,B11QG, the propertyiswell over100 yearsoldand wasconstructedover3 different
periods.Due tothe closure of nearbyfacilitiesthispropertyisnow inhighdemandandrequiresa
significantoverhaul toprovide asuitable andsustainablebuildingforthe next20yearyears.
In thisrespectthe clientrequiresthe following:
Extensionandredesignof the rearfirstfloorarea(C&D) to provide anew commercial kitchen,male,
female anddisable toilets,liftaccessfromthe groundfloorand2 No rehearsal rooms( these rooms
shouldbe a minimumof 16m2 in floorarea) The extensionistocoverthe full widthof the site.
Reconfigurationof the groundFloorkitchenandToilets(F) toprovide asmall kitchenette formaking
coffee,male,femaleanddisabledtoiletsandthe lifttothe firstfloor.The accessto the basement
mustbe maintained.
Refurbishmentof the firstfloorfemale toiletsandsecondfloormale toiletstothe frontof the
buildingtomake eachsetaccessible andunisex.(A &B)
Enclosingthe openfire escape andprovidingdisabledaccesstothe groundflooranda new internal
staircase to the firstfloor.
In additiontothisthe clientwishestoimprove the sustainable credential of the building,including
elementforreuse of waterintoilets,bothenergysavingandenergyproductionandbestuse of
natural lightas well asensuringcompliancewiththe EqualityAct.
Figure 2
Ground floor  Reconfigure groundfloorkitchenfor
kitchenette
 Provide male female anddisabletoilets
 A liftfromgroundfloorto first
 Provide disableaccesstobuilding
FirstFloor  Extendwidthof buildingtoboundary
 Reconfigure layouttoprovide two12m2
rehearsal rooms
 New commercial kitchen
 Male,female anddisable toilets
SecondFloor  New uni-sex toilets

19. Critical Analysis BNV 6116 HRP
pg. 18
Other  Optimise natural lighting
 Adda greywaterre-use system
 Improve sustainablecredentials
Figure 3
Layout andareas C D E F.
Figure 4
Type of construction:
60 SevernStreet,MasonicCentre Birmingham;isahistoricgrade two listedbuildingdatingbackto
1809. The buildinghasundergone changes,suchasbeing,remodelled,altered,repairedand
redesigned.
Before the clientundertakesthe projectforthisbuildingitwouldbe suggestedthathe looksatthe
conditionof the existingbuilding,if there are anydefectsatthispresentmomentandfinallythe
typesof defectsyouwouldexpecttofindinabuildingof thisconstructiontype andage.
An extraroomsuch as the diningroomwasaddedaround 1871 to 1874. From here the front
façade was remodelled,redesigned andaddedtobyEssex andNicol Architectsinthe cityand
has remainedlittle alteredtoday. (EnglishHeritage2014)
The buildingisyourtraditional constructiontypeof property;ithasyourexteriorbrickwork,both
pitchedroofswithupdatedconcrete interlockingtilesandflatroofswithfelt,concrete solidfloorsat

20. Critical Analysis BNV 6116 HRP
pg. 19
the base and groundfloorof the buildingwithtimbersuspendedfloorsforthe restof the floors.
Timberframeddoorsandwindows.
The buildingisamid-VictorianearlyVictorianproperty,the buildingitself wasbuiltoverthree
differenttime periods.The oldestpartof the buildingbeingthe maintwohallsonthe groundfloor
whichwe believedate backtothe 1827. From here the buildingwasrebuiltandthe frontfaçade was
thenadded.
The buildingfaçade isthree storeyedbutonlysingle storeyedtowardsthe rear.Due to the front
beingredesignedin1891 the architecture isof a Victorianstyle.Itisa redbrick designwithfour
separatedbays.The bayswere separatedbypilasters.The windowsare timberframedthreeby
three panes. Atthe top is a flatroofedatticdormerwhichhas 8 small windows.Tothe north
easternside the buildingisfullyrendered.Whereasthe southwesternsideisattachedtothe
buildingnextdoor,thisisjustthe frontfirstsectionof the building.
The building itself is a unique quite an old building with its own individualistic features. Due
to the building was built over three different time periods, this is visible in the construction
of the building. You can see the differences in the technology of the construction and design
of the building, which all had to be taken into consideration in the projects planning stage.
Figure 4
Greywater reuse system:
Water usedinhomeshaslongbeenthoughtof interms of cleandrinkingwater(knownaspotable
water) comingintothe house fromthe mainsand sewage goingout.However,the wastewaterfrom
baths,showers,washingmachines,dishwashersandsinksfitssomewhere in-betweenandthisis
referredtoas greywater,whichtypicallymakesupbetween50-80% of householdswaste water.
Roughlya thirdof the waterusedinhouseholdsisusedintoilets,whichcomesintocontactwith
humanwaste and isknownas black water.Greywaterismuch easiertotreatand recycle when
comparedwithblack waterbecause there isnofaecal matterthat is a haven forharmful bacteria
and disease causingpathogens.
If recycledproperly,greywatercansave approximately70litresof potable waterperpersonperday
indomestichouseholds,therefore greywaterrecyclingisone of a numberof watersolutionsthatwe
shouldlooktoinorder to decrease ourusage.
If your house ismetered,recyclinggreywatercansignificantlyreduce the volume of wateryouuse
therebysavingyoumoneyonyourwaterbills. (Thegreenage,2012)
Figure 5
Passive technology:
As mentionedabove there werenotasmanypassive optionsavailable asactive thiswasdue tothe
limitationswiththe buildingslocationandlayout.Due toitsorientationwiththe additionalaspect
that onlyone sectionof the buildingsstructure wastobe alterednotmuchcouldbe includedin
respectstopassive sustainability.
Passive sustainable technologyrequiresthe designof the buildingtoenhance the energyflow by
itself ownmaterialsandelements.Sothiswouldbe allow airpassage tocool downthe facilityand
helpwithventilation.Howeveranactive sustainable feature wouldnormallyincludesome sortof
equipmentwhichwouldcontrol the facilitiestemperature,suchasan undergroundheatsource

21. Critical Analysis BNV 6116 HRP
pg. 20
pump.Withthisin mindI decidedtoinclude active sustainable methodsasmymainfocusto
improvingthe buildingssustainable credentials,seeingasthere wasmore possibilitiesandless
limitations.HoweverIwasstill able toincorporate passive technologyintothe design.
I includedmanywindowsintothe designalongwithskylightsonboththe pitchedroof andflatroof
to optimise the amountof natural lightingthe buildingreceives.Thiswasalsoanotherrequirement
by the client.
Figure 6
Roof Comparison:
Here is a linktoarticle whichwill coverthe prosand consof eachroof design:
http://www.homebuilding.co.uk/advice/key-choices/roofing/flat-roofs
Figure 7
Floor plansall levels:
Ground Floor:
FirstFloor:
SecondFloor:

22. Critical Analysis BNV 6116 HRP
pg. 21
Figure 9
Grade two listedbuildings:
What isa listedbuilding?A 'listedbuilding'isabuilding,objectorstructure thathas beenjudgedto
be of national importance intermsof architectural orhistoricinterestandincludedonaspecial
register,calledthe Listof Buildingsof Special Architectural orHistoricInterest.(Planningportal,
2013)
For a grade twolistedbuildingyouwillfindthatyoumayneedlistedbuildingsconsenttoalterthe
buildingstructural appearances.
Figure 10
ConditionReport:
Here is a sectionof the conditionsreportwhichdescribesthe external walls,the partywallsandthe
existingroofs:
2.0 Roof 1 Thisroof isa pitchedroof,with
clay tiles
The roof seemstohave slightwaves
inthe structure,froma visual
inspectionthiscouldbe due tothe
recentlyaddedclaytiles,the added
weightseemstohave hadan effect
on the supportingaids,butwithout
openingthe roof tocheck you
cannot be certain.The tilesseemto
have a lot of vegetationandmoss
growinginand aroundthemwhich
couldcause thermal expansionif not
dealtwith.
2.1 Roof 2 Thisroof islocatedabove
sectionC,it isthe same styled
pitchedroof as the otherwith
clay tiles
Withthisroof youcan see the waves
inthe structure more clearly,once
againthiscouldbe due to the added
clay tiles,the roof supportsmaynot
be able to take the extra weight,the
supportsshouldbe checked,and
furtherinvestigationisrequired.The
tilesonthisroof alsohave a lotof
vegetationonthe whichcouldlead
to problemsinthe future
2.2 Roof 3 This isthe currentflatroof
locatedinsectionD,(See
appendix figure1) the flatroof
isa traditional asphaltcovered
roof
The current conditionof the flatroof
isdefective,itisdamagedinmany
places,holdingstillwaterinplaces,
and there isvegetationandmoss
growinginparts,thiscould cause
damage to the structure below and
the wallsconnectedtothe roof.The
roof will need replacing
3.0 Guttering/Rain
watergoods
There isa cast ironguttering
alongthe roof number2
The cast irongutteringisshowing
signsof corrosionwhichcouldlead
to the gutterfailing,the gutteralso
seemstohave some blockage inthe

23. Critical Analysis BNV 6116 HRP
pg. 22
systemwhich couldbe detrimental
to the buildingif notattendedto
4.0 Exteriorswalls Traditional brickwork
construction
There are manyplacesinwhichthe
exteriorwallsof the buildingneed
attention,youcanalreadysee that
there are patchesthat have been
repairedandreplaced.Manyof the
brickfaceshave degraded;some
brickshave movedoutof place,
there are cracks inthe brick work
and the mortar. There isalso
penetratingdampinsome placesof
the exteriorwalls.Thesedefects
needattention,repairswill be
needed,rendering,andreplacement
of sectionsisalsoneeded
Figure 11
DesignerRisk assessment:
DRA forthe partywall:

24. Critical Analysis BNV 6116 HRP
pg. 23
DRA forthe Flatroof:
Figure 12
Costings:
Flat Roof
Item
No.
Description UNIT Quantity Cost Total Time
Adjust
Location
Adjust
1 Classicbondone
piece EPDMrubber
roofingcovering
20mm
M2
145m2 £96.52
(Rubber4roofs
2015) (Figure 1)
£14000 14000 X
264
215
=£17200
No
adjustment
required,
standardfixed
price.
=£17200
2 20mm thickpolymer
modified asphalt
roofingincluding
roofingunderlay;
includesvapour
barrier(U-value =
0.13)
M2
145m2 £85 to £110
£100
£14500
14500 X
264
215
=£17900
West
Midlands
Regional
Adjustment=
0.99
=£ 17800
3 Softwoodflatroof,
structure only
comprisingroof
joists;100mm x
50mm
M2
145m2 £41 to £53
=£45
£6525
6525 X
264
215
=£8000
West
Midlands
Regional
Adjustment=
0.99
=£7950

25. Critical Analysis BNV 6116 HRP
pg. 24
4 Fire barriers
insulation;Rockwool
fire barrieror other
equal andapproved;
betweentopof
suspendedceiling;
two50mm layersby
900mm wide one
hour
M2
145m2 £53.25 £7700
7700 X
264
215
=£9500
West
Midlands
Regional
Adjustment=
0.99
=£9400
5 Facia Boards, timber
framing,master
board,6mm thick,
150mm wide
(Figure 2)
M 45m £5.35 £240 240 X 264
215
=£300
West
Midlands
Regional
Adjustment=
0.99
=£300
6 Flashing,1.80mm
thick,(code 4),Lead
flashing,wedging
intogroove,150mm
girth(Figure 3)
M 39m £11.76 £460 460 X 264
215
=£565
West
Midlands
Regional
Adjustment=
0.99
=£560
Elementtotal =£53210 =
£53500
Figure 13
Part L:
Here is a linktopart L of the approveddocuments,thiswill provide youwiththe information
regardingthe requirementsof walls:
http://www.planningportal.gov.uk/buildingregulations/approveddocuments/
Figure 14
Manufacture informationregarding Rain water harvestingsystems:
Here is a linkforthe manufacturesfora rain waterharvestingsystem:
http://www.rainharvesting.co.uk/products/rainwater-units

26. Critical Analysis BNV 6116 HRP
pg. 25
Word Count
Not Including References and Appendix: 3299
Including References and Appendix: 5523