Crumlin Cottages Retrofit Sinead Wilmott D14124530 HOME QUALITY RATING 71% EXCELLENT 65% 76% 78% 61% 78% Floor 22mm SW Floorboards 5mm Bitumen 75mm Concrete Slab Existing Wall Construc- tion 18mm Pebbledash finish 215mm Cast in situ concrete 18mm Sand Cement Plaster Retrofit Panel 40mm Mineral Wool 15mm OSB Board 200mm timber frame made up of 2 x cross layers with Knauf Ecosse mineral wool insulation 15mm DWF Wood fibre board 25mm Ventilated Cavity 15mm Fibre Cement Board with 3mm plaster finish Windows Aura plus triple glazed Aluclad windows taped to existing plaster internally for airtightness Prefabricated Retrofit 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 fibre board acts as wind layer 25mm ventilated layer Fibre cement board with plaster finish to match existing / Fibre cement cladding to new construction Key Findings Thermal 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 Retrofit Planters Community Grocery Oppurtunity in Conjunction with Local Authority Support Retrofit Roof 2.5mm 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 fibre board Sarking Felt 25mm Battens 25mm Counter battens Slate tiles New Aluminium fasia, soffit and rainwater gutter Below DPC Level 200mm XPS insulation to existing foundation Plaster finish above ground level New Floor Construction 75mm Concrete Screed 150mm Reinforced Concrete Slab 250mm XPS Insulation DPM 50mm Sand Blinding 150mm Hardcore Ground Ring beam on Lean mix concrete New Wall Construction 12.5mmm Plasterboard 25mm Service Cavity 60mm PIR Insulation 15mm OSB Board 240mm Mineral Wool timber frame in 2 crossed layers 15mm DWF wood fibre board 25mm Ventilated Cavity 15mm Fibre Cement Board Cladding New Roof Construction 15mm OSB Board 300mmMineral Wool timber frame in 2 crossed layers 15mm DWF wood fibre board Sarking Felt 25mm Battens 25mm Counter battens Slate tiles Finish Windows Aura plus triple glazed Aluclad windows taped to existing plaster internally for airtightness Doors Aura plus triple glazed Aluclad patio doors taped to OSB internally for airtight- ness Existing Ground Floor Retrofit Construction Retrofit Combined Eaves/ Window Retrofit Combined Floor /Window Building Integrated Solar Electric Roof Tile High 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 m² Kitchen / Diner 8 m² Study / Guest Bed 2 m² WC 16 m² Living Room 5 m² Bathroom 11 m² Bedroom 6 m² Kitchen 14 m² Dining 11 m² Room 8 m² Study / Guest Bed Extension Construction Existing First Floor Issues DOE Space Requirements Part L compliance fabric upgrade, building services and renewables Part B compliance new fire 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 flexible living space at ground floor / ensuite bedroom at ground floor An extra bedspace on first floor A2 Energy Efficient 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 Floor Rear View Front View A2 A2 A2 41 kWh/m2/yr 41 kWh/m2/yr Existing Ground Floor Ground Floor Extension Ground Floor Porch U Values Hygrothermal Analysis Retrofit First Floor Retrofit Ground Floor Building Services 46 kWh/m2/yr End Of Terrace Mid Terrace Regular Mid Terrace Gable Retrofit Roof - No Interstitial Condensation or Surface Moisture Reported Retrofit Wall- No Interstitial Condensation or Surface Moisture Reported Retrofit 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 Linear Thermal Bridge fRsi Calculation Base line Floor Retrofit Floor Y Factor 0.031 Y Factor 0.513 Y 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 finish in existing building Air Tightness Leave existing ceiling in place Install Intello Plus membrane to ceiling taped at joints and junction with existing wet plaster Wind Tightness Wind tightness achieved by vapour difuse DWF mineral fibre board to ex- ternal of retrofit panel, taped at joints and junctions Air Tightness Existing wet plaster finish to be consolidated Skirting boards to be removed, junction taped and skirting replaced. Air Tightness Existing wet plaster finish to be consolidated Skirting boards to be removed, floor junction taped and skirting re- placed. Ventilation Central Extract unit in attic extracts air through roof Air Tightness OSB board, taped at junctions and Windows / Doors acts as air tightness layer Wind Tightness Wind tightness achieved by vapour difuse DWF mineral fibre board to external of retrofit panel, taped at joints Air Tightness Concrete floor acts as airtightness layer, tape floor to OSB / Door junction for continious seal Skirting board installed after