Cru

mlin Cott

ages R

etr

ofit

Sinead Wilmott D14124530

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QUALITY

RATING71% EXCELLENT

65%

76%

78%

61%

78%

Floor22mm SW Floorboards5mm Bitumen 75mm Concrete Slab

Existing Wall Construc-tion18mm Pebbledash fi nish215mm Cast in situ concrete

18mm Sand Cement Plaster

Retrofi t Panel40mm Mineral Wool

15mm OSB Board

200mm timber frame made

up of 2 x cross layers with

Knauf Ecosse mineral wool

insulation

15mm DWF Wood fi bre

board

25mm Ventilated Cavity

15mm Fibre Cement Board

with 3mm plaster fi nish

WindowsAura plus triple glazed

Aluclad windows taped

to existing plaster internally

for airtightness

Prefabricated Retrofi t Panels Hung From

Existing Concrete Walls

40mm mineral wool inner layer acts as a cushion

against existing surface

15mm OSB inner layer acting as VCL (airtightness

layer in new construction) with taped joints

200mm stud with mineral wool insulation

cross layered

15mm DWF board, highly diffusible wood fi bre board

acts as wind layer

25mm ventilated layer

Fibre cement board with plaster fi nish to match

existing / Fibre cement cladding to new construction

Key FindingsThermal Bridging and DEAP Rating Penalties

More suited to new build

Crumlin Scored highly in Location due to excellent

amenities & Services

The only service not available was the local shop

Crumlin Community Development Project established

in 2005 - Active community participation

Allotments in Nearby Pearse College - Combined with

Retrofi t Planters

Community Grocery Oppurtunity in

Conjunction with Local Authority Support

Retrofi t Roof2.5mm Skim Plaster

12.5mm Plasterboard

100mm Rafters

100mm mineral wool

15mm OSB Board

200mm Mineral Wool timber

frame in 2 crossed layers

15mm DWF wood fi bre

board

Sarking Felt

25mm Battens

25mm Counter battens

Slate tiles

New Aluminium fasia, soffi t

and rainwater gutter

Below DPC Level200mm XPS insulation to

existing foundation

Plaster fi nish above ground

level

New Floor Construction75mm Concrete Screed

150mm Reinforced

Concrete Slab

250mm XPS Insulation

DPM

50mm Sand Blinding

150mm Hardcore

Ground Ring beam on

Lean mix concrete

New Wall Construction12.5mmm Plasterboard

25mm Service Cavity

60mm PIR Insulation

15mm OSB Board

240mm Mineral Wool timber

frame in 2 crossed layers

15mm DWF wood fi bre

board

25mm Ventilated Cavity

15mm Fibre Cement Board

Cladding

New Roof Construction15mm OSB Board

300mmMineral Wool timber

frame in 2 crossed layers

15mm DWF wood

fi bre board

Sarking Felt

25mm Battens

25mm Counter battens

Slate tiles Finish

WindowsAura plus triple glazed

Aluclad windows taped

to existing plaster internally

for airtightnessDoorsAura plus triple glazed

Aluclad patio doors taped to

OSB internally for airtight-

ness

Existing Ground Floor

Retrofit Construction

Retrofi t Combined Eaves/ WindowRetrofi t Combined Floor /Window

Building Integrated Solar Electric Roof TileHigh power output 52Wp per tile,

less than 8 m2 per kWp

Houses

Allotments

Crumlin Shopping

Centre

Aereco EHT 969

Humidity Air Sensitive

Intake

GFL 0

12 m²Kitchen / Diner

8 m²Study / Guest Bed

2 m²WC

16 m²Living Room

5 m²Bathroom

11 m²Bedroom

6 m²Kitchen

14 m²Dining

11 m²Room

8 m²Study / Guest Bed

Extension Construction

Existing First Floor

Issues

DOE Space Requirements

Part L compliance fabric upgrade, building services

and renewables

Part B compliance new fi re alarm

Part M compliance widening entrance door

Minimal Intervention

External insulation of existing house with prefabricated

timber panels

Planter for each household

New Porch < 2 sq. m

New 2 Storey Rear Extension < 12 sq. m at each storey

Retain Existing Floor

Provides

DOE compliant rooms

An extra fl exible living space at ground fl oor / ensuite

bedroom at ground fl oor

An extra bedspace on fi rst fl oor

A2 Energy Effi cient Home

Ventilation Whole house extract with controlled individual room supply

Heating Thermia Atec Air to Water Heat Pump –

1 utility bill, reduced service charges

Renewable Integrated Solar Pv roof tiles

Aereco V4A Central

Extract

Aereco BXC Air Extract

Ventilation

Thermia Atec 200L Hot

Water tank with control

panel, electric heater

cartridge, circulation

pump and 3 way valve

Retrofit Ground Floor

Retrofit First FloorRear View

Front View

A2 A2A2

41 kWh/m2/yr41 kWh/m2/yr

Exis

ting G

round F

loor

Gro

und F

loor

Exte

nsio

nG

round F

loor

Porc

h

U Values

Hygrothermal Analysis

Retrofit First Floor

Retrofit Ground Floor

Building Services

46 kWh/m2/yr

En

d O

f Te

rra

ce

Mid

Te

rra

ce

Re

gu

lar

Mid

Te

rra

ce

Ga

ble

Retrofi t Roof - No Interstitial Condensation or Surface Moisture Reported

Retrofi t Wall- No Interstitial Condensation or Surface Moisture Reported

Retrofi t Floor- Interstitial Condensation & Surface Moisture Reported -

External Insulation carried to foundation level, extension to rear, porch to front,

fRsi calculation - 0.89 Complies

New Roof - No Interstitial Condensation or Surface Moisture Reported

New Wall - No Interstitial Condensation or Surface Moisture Reported

New Floor- Interstitial Condensation -

fRsi calculation carried out - 0.835 Complies

Lin

ear

Therm

al B

ridge

fRsi Calc

ula

tion

Base line Floor Retrofi t Floor

Y Factor 0.031

Y Factor 0.513Y Factor 0.012

New Wall Corner

Pro Clima Teson Vana tape suitable for timber

frame construction - Tape OSB & DWF board

at joints, tape windows / doors to OSB board in

new construction.

Pro Clima tape - Tape windows & doors to wet

plaster fi nish in existing building

Air TightnessLeave existing ceiling in place

Install Intello Plus membrane to ceiling

taped at joints and junction with

existing wet plaster

Wind TightnessWind tightness achieved by vapour

difuse DWF mineral fi bre board to ex-

ternal of retrofi t panel, taped at joints

and junctions

Air TightnessExisting wet plaster fi nish to be

consolidated

Skirting boards to be removed,

junction taped and skirting replaced.

Air TightnessExisting wet plaster fi nish to be

consolidated

Skirting boards to be removed,

fl oor junction taped and skirting re-

placed.

Ventilation Central Extract unit in attic

extracts air through roof

Air TightnessOSB board, taped at junctions and

Windows / Doors acts as air tightness

layer

Wind TightnessWind tightness achieved by vapour

difuse DWF mineral fi bre board to

external of retrofi t panel, taped at

joints

Air TightnessConcrete fl oor acts as airtightness

layer, tape fl oor to OSB / Door

junction for continious seal

Skirting board installed after