Standard Assessment Procedure

Transcription

1 Standard Assessment Procedure For assessing the energy performance of dwellings (2006) FOR Conversion, Flat 3, 92 Ladbroke Road, Redhill. March

2 trading as ACSystems Proprietor A.C.Underwood BSc(Hons).,Dip.BSbc.MBEng 8 Beechwood Place Narberth Pembrokeshire SA67 7EE Tel : info@sap-calculations.co.uk web :

3 CONTENTS 1. INTRODUCTION 1.1 Generally 1.2 Method of Calculation 1.3 Summary of Calculations 2. OVERVIEW OF MAIN AREAS 2.1 Average U Values 2.2 Air Pressure Test 2.3 Primary Heating System 2.4 Secondary Heating System 2.5 Domestic Hot Water 2.6 Ventilation 2.7 Lighting 3. APPENDIX 3.1 Design Input & Results 3.2 Full SAP Calculation Printout 3.3 U Value Calculation 3.4 Condensation Risk Analysis

4 1.0 INTRODUCTION 1.1 Generally The standard Assessment Procedure (SAP) 2005, is adopted by Government as the UK methodology for calculating the energy performance of dwellings. It is used to demonstrate compliance for dwellings with Part L of the Building Regulations (England & Wales) and Part J (Scotland) and to provide energy ratings for dwellings. The calculation is based on the energy balance taking into account a range of factors that contribute to energy efficiency: Materials used for construction of the dwelling Thermal insulation of the building fabric Ventilation characteristics of the dwelling and ventilation equipment efficiency and control of the heating system(s) solar gains through openings of the dwelling the fuel used to provide space and water heating, ventilation and lighting renewable energy technologies. Ratings are not affected by the geographical location, so that a given dwelling has the same rating in all parts of the UK. The procedure used for the calculation is based on the BRE Domestic Energy Model, which provides a framework for the calculation of energy use in dwellings. The procedure is consistent with the European standards BS EN 832 and BS EN ISO Method of Calculations Calculations have been provided under SAP 2005 for the conversion of a barn into a dwelling. The work is deemed as a Material Change of Use and the calculations meet the provisions of paragraphs of Approved Document L1B. Controlled services are in accordance with paragraphs 31 to 48 of L1b

5 Retained thermal elements have been renovated and therefore have been upgraded in accordance with paragraphs 56 and 57 of L1B. Compliance with L1B Approved Document 2006 edition is determined with the Building Research Establishment approved program Elmhurst. 1.3 Summary of Calculations The SAP Rating for this converted property is 69 (Band C) The Environmental Impact Rating is 74 (Band C) C0² Emissions are 1.88 tonnes/yr Therefore, the converted dwelling, Flat 3, 92 Ladbroke Road, Redhill, is compliant with the requirements of SAP 2005.

6 2.0 OVERVIEW OF MAIN AREAS 2.1 Average U-Values Walls Roofs Openings 0.23, 0.33, 0.27 & 0.30 W/m²K 0.24 & 0.26 W/m²K 1.80 W/m²K For detailed information refer to appendix 2.2 Air Pressure Test An pressure test is not required - q50 has a design value set at 50 pa. 2.3 Primary Heating System The design includes electric panel, convector or radiant heaters with programmer and room thermostats. 2.4 Secondary Heating System None 2.5 Domestic Hot Water Dual Immersion heaters in 130ltr cylinder. 2.6 Ventilation Ventilation shall consist of natural ventilation with intermittent extract fans. 2.7 Lighting 100% of artificial lighting within the dwelling are to be low energy.

7 3.0 APPENDIX 3.1 Design Input & Results 3.2 Full SAP Calculation Printout 3.3 U Value Calculation 3.4 Condensation Risk Analysis

8 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB DESIGN INPUT & RESULTS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion SUMMARY OF INPUT DATA FOR DWELLING AS BUILT: Page 1 of 2 Region & Orientation Region: TH Thames valley (17), House Orientation: W West 1.0 Property Type T Top Floor Flat, S Semi Detached General Requirements (new build only) 2.0 Number of Storeys 3.0 Date Built 4.0 Sheltered Sides 2 K 2007 onwards Sunlight/Shade A Average or unknown 6.0 Internal Walls Perimeter 8.82 m, m 7.0 Internal Floor Area m2, m2 8.0 Living Area 30.71, fraction: Average Storey Height 9.1 Conservatory 2.39 m, 2.32 m None Openings Description Glazing Type Solar Frame or Air Argon Orientation Uvalue Area Trans Door Type Gap Fill 11.0 Windows Rear Elevation Double,Low E,Hard Coat 0.72 PVC 20 mm Yes East (180 ) 1.80 (M) 1.97 Front Elevation Double,Low E,Hard Coat 0.72 PVC 20 mm Yes West (0 ) 1.80 (M) 2.50 Side Elevation Double,Low E,Hard Coat 0.72 PVC 20 mm Yes South (90 ) 1.80 (M) Roof Lights Velux Double,Low E,Hard Coat 0.72 Wood 20 mm Yes West (0 ) 1.40 (M) 1.68 Openings Average: U: 1.71 Uvalue legend: (T) = Uvalue defaulted from SAP Table (M) = Manufacturer supplied 13.0 Draught Proofing 100% 14.0 Thermal Bridging Default - Robust Construction Thermal Bridges Y Description 15.0 Pressure Test (q50) (not tested) 16.0 Mechanical Ventilation None, Windows open during hot weather: Windows fully open Cross ventilation possible: Yes 17.0 Fans, Chimneys, Flues 2, 0, Lighting Light fittings: 19, L.E.L. fittings: 19, External lights: None Description U-value Shelter Room in Area Timber Curtain Roof Walling 18.0 Wall Types New Walling No No Existing Walling No No Stud Walls to Roof Space Yes No External Tile Hung Wall Yes No Walls uvalue average: U: 0.26 Timber or Steel frame area Plane Roofs Roof Sloping Ceiling Flat Roof Roofs uvalue average: U: Ground Floor Types DB Other Dwelling Belo No Floors uvalue average: U: Thermal Mass Simple Thermal Mass Parameter calculation: Ground Floor Mass: Medium - solid floor External Wall Mass: High - masonry walls (cavity fill or external insulation) with dense plaster Separating Wall Mass: High - masonry walls dense plaster Internal Partition Mass: High - masonry internal walls with dense plaster 20.2 Fixed Air Conditioning No 0.00

9 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB DESIGN INPUT & RESULTS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion SUMMARY OF INPUT DATA FOR DWELLING AS BUILT: Page 2 of Main Heating REA Electric panel, convector or radiant heaters MHS Efficiency Manufacturer data: 100.0% Manufacturer & Model Manufacturer's data: TBC, TBC, 100.0% Heating Controls CRD Programmer and room thermostats Boiler interlock - Yes Underfloor Heating None 21.1 Secondary Heating None SHS Details 22.0 Hot Water Heating HEI Independent electric / immersion water heating systems, DualImmersion Solar Water Heating None 23.0 Thermal Store None 24.0 Hot Water Cylinder Yes, in heated space Insulation Foam, Thickness: 50 mm Volume litres 25.0 Community Heating None CHP Unit 26.0 Electricity Tariff 7 - Hour Off Peak 27.0 Photovoltaic Unit None 27.1 Micro Wind Turbines Count 27.2 Small-scale Hydro electricity Special Features None

10 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB Full SAP Calculation Printout Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion CALCULATION DETAILS for survey reference no 'A ' Page: 1 SAP input data (DesignData) Regs Region: England Calculation Type: Conversion Region: TH Thames valley (17) Orientation: W West PropType: T Top Floor Flat, S Semi Detached Storeys: 2 Property Age Band: K Sheltered Sides: 2 Sunlight Shade: A Average or unknown Wall Perimeter: 8.82 m, m Floor Area: m2, m2 Living Floor Area: m2, fraction:0.00 Storey Height: 2.39 m, 2.32 m Conservatory: None Doors Windows Rear Elevation: Double,Low E,Hard Coat, PVC, 20 mm, East (180 ), uvalue: 1.80 (M), Front Elevation: Double,Low E,Hard Coat, PVC, 20 mm, West (0 ), uvalue: 1.80 (M), a Side Elevation: Double,Low E,Hard Coat, PVC, 20 mm, South (90 ), uvalue: 1.80 (M), Draught Lobby: Yes Draught Proofing: 100% Roof Lights Velux: Double,Low E,Hard Coat, Wood, 20 mm, West (0 ), uvalue: 1.40 (M), Pressure Test: (not tested) Mechanical Ventilation: None, Windows open during hot weather: Windows fully open Cross ventilation possible: Yes Fans, Chimneys, Flues: 2, 0, 0 Lighting: Light fittings: 19, L.E.L. fittings: 19, External lights: None Main Wall Type: U: 0.23 A: m2 Extented Wall Types: U: 0.33 A: 5.32 m2, U: 0.24 A: m2, U: 0.30 A: m2 Timber Frame Wall Area: Roof type 0 Roof Sloping Ceiling U: 0.24 A: m2 Flat Roof U: 0.26 A: m2 Main Floor Type: DB Other Dwelling Below, U: 0.00 A: m2 Thermal Mass: Simple Thermal Mass Parameter calculation: Ground Floor Mass: Medium - solid floor External Wall Mass: High - masonry walls (cavity fill or external Separating Wall Mass: High - masonry walls dense plaster Internal Partition Mass: High - masonry internal walls with dense Timber Floor: No Timber Floor Fixed Air Conditioning: No Main Heating: REA Electric panel, convector or radiant heaters Main Heating Manufacturer: Manufacturer's data: TBC, TBC, 100.0% Heating Controls: CRD Programmer and room thermostats Boiler interlock - Yes

11 CALCULATION DETAILS for survey reference no 'A ' Page: 2 Underfloor Heating: None Secondary Heating: None Manufacturer: Thermal Store: None Hot Water Heating: HEI Independent electric / immersion water heating systems, DualIm Solar Water Heating: None Thermal Store: None Hot Water Cylinder: Yes, in heated space Hot Water Cylinder Insulation: Foam, Thickness: 50 mm Hot Water Cylinder Volume: litres Community Heating: None CHP Unit: Electricity Tariff: 7 - Hour Off Peak Thermal Bridges: DefaultRobustConstr, Thermal bridging factor y = 0.08 PV Cells: None Energy Saved: Energy Used: Terrain Type: Urban Number of Wind Turbines: 0

12 CALCULATION DETAILS for survey reference no 'A ' Page: 3 SAP calculation (Conversion) 1. Overall dwelling dimensions Ground floor * First floor * Total floor area (5) Total house volume (6) 2. Ventilation rate Number of chimneys 0 * 40 0 (7) Number of flues 0 * 20 0 (8) Number of fans 2 * (9) Flueless gas fire 0 * 40 0 (9a) Infiltration (10) Number of storeys 2 (11) Additional infiltration (12) Structural infiltration (13) Wooden floor infiltration (14) Draught lobby infiltration (15) Percentage windows draught proofed (16) Window infiltration (17) Infiltration rate (18,19) Sides sheltered 2 (20) Shelter factor (21) Adjusted infiltration rate (22) Air change natural ventilation (24) Effective air change rate (25) 3. Heat losses and heat loss parameter Windows Rear Elevation * (1.80) (27) Windows Front Elevation * (1.80) (27) Windows Side Elevation * (1.80) (27) Roof windows Velux * (1.40) (27) Floor (1) * (28) New Walling * (29) Existing Walling * (29) Stud Walls to Roof Space * (0.27) (29) External Tile Hung Wall * (29) Roof Sloping Ceiling * (30) Flat Roof * (30) Total area of elements (32) Fabric heat loss (33) Appendix K: Thermal bridging (y) Effect of thermal bridges (34) Total fabric heat loss (35) Ventilation heat loss (36) Heat loss coefficient (37) Heat loss parameter (HLP) (38) 4. Water heating energy requirements Energy content of heated water (39) Distribution loss (40) Cylinder volume (43) Cylinder loss factor (kwh/litre/day) (44) Volume factor from Table 2a (44a)

13 CALCULATION DETAILS for survey reference no 'A ' Page: 4 Temperature factor from Table 2b (44b) Energy lost from water storage, kwh/year (45) Energy lost from cylinder in kwh/year (47) Primary circuit loss (48) Output from water heater (51) Gains from water heating (52) 5. Internal gains Lighting, appliances, cooking and metabolic (Table 5) (53) Reduction of internal gains due to LE lighting (Appendix L) Correction factor for low-energy outlets (C1) Window * * 0.80 * 0.7 * 0.83 / Window * * 0.80 * 0.7 * 0.83 / Window * * 0.80 * 0.7 * 0.83 / Rooflight * * 0.80 * 0.7 * 1.00 / Ratio of glass area to floor area (GL) Correction factor for daylighting (C2) Annual energy used for lighting in the house (EL) Reduction in lighting use due to low energy lights (deltael) Low energy lighting (53a) Additional gains (Table 5a) (53b) Water heating (54) Total internal gains (55) 6. Solar gains Area Flux g FF Access Gains (m2) Factor (W) Windows 'E ' 0.9 * * 48 * 0.72 * * (58) Windows (1) 'W ' 0.9 * * 48 * 0.72 * * (62) Windows (2) 'S ' 0.9 * * 72 * 0.72 * * (60) Roof windows 'W ' 0.9 * * 48 * 0.72 * * (64) Total solar gains (65) Total gains, W (66) Gains/loss ratio (GLR) (67) Utilisation factor (68) Useful gains, W (69) 7. Mean internal temperature Mean internal temperature of living zone (heating type = 1) (70) Temperature addjustment (71) Adjustment for gains (72) Adjusted room temperature (73) Temperature difference between zones (74) Living area fraction (75) Rest of house floor fraction (76) Mean internal temperature (77) 8. Degree-days Temperature raise from gains (78) Base temperature (79) Degree days (80) 9a. Energy requirements - individual heating systems, including Micro CHP Space heating requirement (useful) (81) Test Method : Model name : TBC Manufacturer: TBC MHS efficiency Main system efficiency (83) Space heating fuel - main HS (85) Space heating fuel - secondary HS (85a) Efficiency of water heater (86) Energy required for water heating Energy used for water heating (86a) Electricity for pumps and fans (87)

14 CALCULATION DETAILS for survey reference no 'A ' Page: 5 Electricity for pumps and fans - total Electricity for lighting (100% fixed LEL) (87g) 10a. Fuel costs - individual heating systems MHS heating cost * (88) SHS heating cost * (89) On-peak fraction (90) Off-peak fraction (90a) On-peak cost * (91) Off-peak cost * (91a) Pump/fan energy * (92) Lighting energy * (93) Additional standing charges (94) Total energy cost (97) Total energy cost using Sedbuk db prices a. SAP rating Energy cost deflator (98) Energy cost factor (ECF) (99) ECF unrounded = SAP value (99a) SAP value unrounded = SAP Energy rating 69 (100) SAP Energy rating band C 12a. Carbon dioxide emissions MHS heating CO2 - box (85) * (101) WHS heating CO2 - box (86a) * (103) Space and water heating CO (107) Pumps and fans CO2 - box (87) * (108) Electricity for lighting * (109) Total CO2 emissions in kg/year (112) CO2 emissions per m? Dwelling's Carbon Factor (CF) EI value (113a) EI rating 74 (114) EI band C 13a. Primary energy MHS heating P.E. - box (85) * WHS heating P.E. - box (86a) * Space and water heating P.E (107) Pumps and fans P.E. - box (87) * (108) Electricity for lighting * (109) Primary energy kwh/year (112) Primary energy kwh/m2/year

15 CALCULATION DETAILS for survey reference no 'A ' Page: 6 Recommendation Level E Recommendation result E Recommendation text : AlreadyInstalled : Low energy lighting recommendation

16 CALCULATION DETAILS for survey reference no 'A ' Page: 7 Recommendation Level N Recommendation result N Recommendation text : NotApplicable : Solar panel recommendation

17 CALCULATION DETAILS for survey reference no 'A ' Page: 8 Recommendation Level U Recommendation result U Recommendation text : NotApplicable : PV Cells recommendation

18 CALCULATION DETAILS for survey reference no 'A ' Page: 9 Recommendation Level V Wind turbine : blade diameter 1.75 m Recommendation result : Recommended V Recommendation no : 44 V Recommendation text : Wind turbine CO2 emissions : (change = ) Total energy cost (97) : (change = 3.328) Total energy cost (Sedbuk) : (change = ) SAP rating : 69 (value = ) EI rating : 74 (value = ) V Recommendation : SAP change ( ), increase = EffectTooSmall

19 CALCULATION DETAILS for survey reference no 'A ' Page: 10 Recommendation Total

20 CALCULATION DETAILS for survey reference no 'A ' Page: 11 SAP input data (DesignData) - Regs Region: England Calculation Type: Conversion Region: TH Thames valley (17) Orientation: W West PropType: T Top Floor Flat, S Semi Detached Storeys: 2 Property Age Band: K Sheltered Sides: 2 Sunlight Shade: A Average or unknown Wall Perimeter: 8.82 m, m Floor Area: m2, m2 Living Floor Area: m2, fraction:0.60 Storey Height: 2.39 m, 2.32 m Conservatory: None Doors Windows Rear Elevation: Double,Low E,Hard Coat, PVC, 20 mm, East (180 ), uvalue: 1.80 (M), Front Elevation: Double,Low E,Hard Coat, PVC, 20 mm, West (0 ), uvalue: 1.80 (M), a Side Elevation: Double,Low E,Hard Coat, PVC, 20 mm, South (90 ), uvalue: 1.80 (M), Draught Lobby: Yes Draught Proofing: 100% Roof Lights Velux: Double,Low E,Hard Coat, Wood, 20 mm, West (0 ), uvalue: 1.40 (M), Pressure Test: (not tested) Mechanical Ventilation: None, Windows open during hot weather: Windows fully open Cross ventilation possible: Yes Fans, Chimneys, Flues: 2, 0, 0 Lighting: Light fittings: 19, L.E.L. fittings: 19, External lights: None Main Wall Type: U: 0.23 A: m2 Extented Wall Types: U: 0.33 A: 5.32 m2, U: 0.24 A: m2, U: 0.30 A: m2 Timber Frame Wall Area: Roof Sloping Ceiling U: 0.24 A: m2 Flat Roof U: 0.26 A: m2 Main Floor Type: DB Other Dwelling Below, U: 0.00 A: m2 Thermal Mass: Simple Thermal Mass Parameter calculation: Ground Floor Mass: Medium - solid floor External Wall Mass: High - masonry walls (cavity fill or external Separating Wall Mass: High - masonry walls dense plaster Internal Partition Mass: High - masonry internal walls with dense Timber Floor: No Timber Floor Fixed Air Conditioning: No Main Heating: REA Electric panel, convector or radiant heaters Main Heating Manufacturer: Manufacturer's data: TBC, TBC, 100.0% Heating Controls: CRD Programmer and room thermostats Boiler interlock - Yes Underfloor Heating: None Secondary Heating: None Manufacturer: Thermal Store: None Hot Water Heating: HEI Independent electric / immersion water heating systems, DualIm Solar Water Heating: None Thermal Store: None Hot Water Cylinder: Yes, in heated space Hot Water Cylinder Insulation: Foam, Thickness: 50 mm Hot Water Cylinder Volume: litres Community Heating: None CHP Unit: Electricity Tariff: 7 - Hour Off Peak Thermal Bridges: DefaultRobustConstr, Thermal bridging factor y = 0.08 PV Cells: None Energy Saved: Energy Used:

21 CALCULATION DETAILS for survey reference no 'A ' Page: 12 Terrain Type: Urban Number of Wind Turbines: 0

22 CALCULATION DETAILS for survey reference no 'A ' Page: 13 Recommendations calculation (Conversion) No improvements selected

23 UVALUE CALCULATION Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS Building Elements: Building Element Roof Flat - Flat roof - conventional Roof Type: Flat Roof standard (no precipitation) Layer Description Thickness l R Fraction External surface Layer1 Felt/bitumen layers Main construction 6 mm % Layer2 Layer3 Layer4 High E Cavity Main construction 50 mm % Bridging - Timber 50 mm % Celotex Main construction 100 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Bridging - Timber 100 mm % Plasterboard, standard Main construction 13 mm % Internal surface Total : Upper limit = m²k/w Lower limit = m²k/w Average = m²k/w U-value (unrounded) = W/m²K Unheated space: None Total thickness: 169 mm U-value: 0.26 W/m²K

24 UVALUE CALCULATION Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS Building Elements: Building Element Roof Slope 1 - Pitched roof - insulated slope, sloping ceiling Roof Type: Pitched Roof, insulated sloping ceiling Layer Description Thickness l R Fraction External surface Layer1 Tiling, clay Main construction 15 mm % Layer2 Layer3 Layer4 Layer5 Layer6 Layer7 Standard cavity Main construction 25 mm % Corrections - Cavity Ventilated, Emissivity: Normal Sarking felt Main construction 1 mm % airspace/timber battens Main construction 22 mm % Corrections - Cavity Unventilated, Emissivity: Normal Bridging - Timber 22 mm % Celotex Main construction 100 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Bridging - Timber 100 mm % Celotex Main construction 18 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Plasterboard, standard Main construction 13 mm % Internal surface Total : Upper limit = m²k/w Lower limit = m²k/w Average = m²k/w U-value (unrounded) = W/m²K Unheated space: None Total thickness: 194 mm U-value: 0.24 W/m²K

25 UVALUE CALCULATION Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS Building Elements: Building Element Wall Main - Masonry-full cavity fill: slabs Layer Description Thickness l R Fraction External surface Layer1 Brick, outer leaf Main construction 105 mm % Layer2 Layer3 Layer4 Layer5 Bridging - Mortar 105 mm % High E Cavity Main construction 40 mm % Celotex Main construction 60 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Celcon Solar - Normal - Trad joint 10mm Main construction 100 mm % Bridging - Mortar 100 mm % Plaster, dense Main construction 15 mm % Internal surface Total : Unheated space: None Upper limit = m²k/w Lower limit = m²k/w Average = m²k/w Total thickness: 320 mm Building Element Wall Type 1 - Masonry-solid wall U-value (unrounded) = W/m²K U-value: 0.23 W/m²K Layer Description Thickness l R Fraction External surface Layer1 Brick, outer leaf Main construction 220 mm % Bridging - Mortar 220 mm % Layer2 Gyproc Thermaline Super 65mm Main construction 65 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Internal surface Total : Unheated space: None Upper limit = m²k/w Lower limit = m²k/w Average = m²k/w Total thickness: 285 mm U-value (unrounded) = W/m²K U-value: 0.33 W/m²K

26 UVALUE CALCULATION Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS Building Elements: Building Element Wall Type 2 - Stud wall to roof Layer Description Thickness l R Fraction External surface Layer1 Tiling, clay Main construction 15 mm % Layer2 Layer3 Layer4 Layer5 Sarking felt Main construction 1 mm % Standard cavity Main construction 0 mm % Corrections - Cavity Ventilated, Emissivity: Normal Celotex Main construction 100 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Bridging - Timber 100 mm % Plasterboard, standard Main construction 13 mm % Internal surface Total : Upper limit = m²k/w Lower limit = m²k/w Average = m²k/w U-value (unrounded) = W/m²K Unheated space: Room in roof built into a pitched roof insulated at ceiling level: Insulated wall of room in roof Total thickness: 129 mm U-value: 0.27 W/m²K

27 UVALUE CALCULATION Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS Building Elements: Building Element Wall Type 3 - Tile Hung Wall Layer Description Thickness l R Fraction External surface Layer1 Tiling, concrete Main construction 18 mm % Layer2 Layer3 Layer4 Sarking felt Main construction 1 mm % airspace/timber battens Main construction 22 mm % Corrections - Cavity Ventilated, Emissivity: Normal Bridging - Timber 22 mm % Orientated Strand Board Main construction 12 mm % Layer5 Celotex Main construction 100 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Bridging - Timber 100 mm % Layer6 12.5mm Gyproc Wallboard Main construction 13 mm % Corrections - Air Gap: Level 0, Fasteners: None or plastic Internal surface Total : Unheated space: None Upper limit = m²k/w Lower limit = m²k/w Average = m²k/w Total thickness: 166 mm U-value (unrounded) = W/m²K U-value: 0.30 W/m²K

28 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB CONDENSATION RISK ANALYSIS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS 5250 Page: Wall Main - Masonry-full cavity fill: slabs Environmental conditions: External conditions: Temperature: 5 C Relative Humidity: 95 % Internal conditions: Temperature: 15 C Relative Humidity: 65 %

29 Page: 2 Table of layers: Layer Width mm Thermal conduct. W/m.K Thermal m2.k/w Cumulative thermal m2.k/w Vapour resistivity GN.s/kg.m Vapour GN.s/kg Cumulative vapour GN.s/kg External surface Tiling, clay Standard cavity Sarking felt , airspace/timber battens Celotex , , , Celotex , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf High E Cavity Celotex , , , Celcon Solar - Normal - Trad joint 10mm , Plaster, dense , Internal surface , External surface Tiling, clay Sarking felt , Standard cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Tiling, concrete Sarking felt , airspace/timber battens Orientated Strand Board Celotex , , , mm Gyproc Wallboard , Internal surface , External surface Felt/bitumen layers High E Cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf Gyproc Thermaline Super 65mm Internal surface

30 Vapour pressure table: Page: 3 Interface - between layers Interface temp. C Vapour pressure Pa Satur. vapour pressure Pa Cond. rate 60 days g/m2.h External surface No 1. External surface / Brick, outer leaf No 2. Brick, outer leaf / High E Cavity No 3. High E Cavity / Celotex No 4. Celotex / Celcon Solar - Normal - Trad joint 10mm No 5. Celcon Solar - Normal - Trad joint 10mm / Plaster, dense No 6. Plaster, dense / Internal surface No Internal surface No Dew point C Cond. rate g/m2.h Cond. risk Y/N Vapour pressure (Pa) Interface VPressure SatVPressure Interface temperature / Dew point graphical representation: Temperature (Pa) Interface Temperature DewPoint

31 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB CONDENSATION RISK ANALYSIS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS 5250 Page: Wall Type 1 - Masonry-solid wall Environmental conditions: External conditions: Temperature: 5 C Relative Humidity: 95 % Internal conditions: Temperature: 15 C Relative Humidity: 65 %

32 Page: 5 Table of layers: Layer Width mm Thermal conduct. W/m.K Thermal m2.k/w Cumulative thermal m2.k/w Vapour resistivity GN.s/kg.m Vapour GN.s/kg Cumulative vapour GN.s/kg External surface Tiling, clay Standard cavity Sarking felt , airspace/timber battens Celotex , , , Celotex , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf High E Cavity Celotex , , , Celcon Solar - Normal - Trad joint 10mm , Plaster, dense , Internal surface , External surface Tiling, clay Sarking felt , Standard cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Tiling, concrete Sarking felt , airspace/timber battens Orientated Strand Board Celotex , , , mm Gyproc Wallboard , Internal surface , External surface Felt/bitumen layers High E Cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf Gyproc Thermaline Super 65mm Internal surface

33 Vapour pressure table: Page: 6 Interface - between layers Interface temp. C Vapour pressure Pa Satur. vapour pressure Pa Cond. rate 60 days g/m2.h External surface No 1. External surface / Brick, outer leaf No 2. Brick, outer leaf / Gyproc Thermaline Super 65mm Yes 3. Gyproc Thermaline Super 65mm / Internal surface No Internal surface No Dew point C Cond. rate g/m2.h Cond. risk Y/N Vapour pressure (Pa) Interface VPressure SatVPressure Interface temperature / Dew point graphical representation: Temperature (Pa) Interface Temperature DewPoint

34 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB CONDENSATION RISK ANALYSIS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS 5250 Page: Wall Type 2 - Stud wall to roof Environmental conditions: External conditions: Temperature: 5 C Relative Humidity: 95 % Internal conditions: Temperature: 15 C Relative Humidity: 65 %

35 Page: 8 Table of layers: Layer Width mm Thermal conduct. W/m.K Thermal m2.k/w Cumulative thermal m2.k/w Vapour resistivity GN.s/kg.m Vapour GN.s/kg Cumulative vapour GN.s/kg External surface Tiling, clay Standard cavity Sarking felt , airspace/timber battens Celotex , , , Celotex , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf High E Cavity Celotex , , , Celcon Solar - Normal - Trad joint 10mm , Plaster, dense , Internal surface , External surface Tiling, clay Sarking felt , Standard cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Tiling, concrete Sarking felt , airspace/timber battens Orientated Strand Board Celotex , , , mm Gyproc Wallboard , Internal surface , External surface Felt/bitumen layers High E Cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf Gyproc Thermaline Super 65mm Internal surface

36 Vapour pressure table: Page: 9 Interface - between layers Interface temp. C Vapour pressure Pa Satur. vapour pressure Pa Cond. rate 60 days g/m2.h External surface No 1. External surface / Tiling, clay No 2. Tiling, clay / Sarking felt No 3. Sarking felt / Standard cavity No 4. Standard cavity / Celotex No 5. Celotex / Plasterboard, standard No 6. Plasterboard, standard / Internal surface No Internal surface No Dew point C Cond. rate g/m2.h Cond. risk Y/N Vapour pressure (Pa) Interface VPressure SatVPressure Interface temperature / Dew point graphical representation: Temperature (Pa) Interface Temperature DewPoint

37 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB CONDENSATION RISK ANALYSIS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS 5250 Page: Wall Type 3 - Tile Hung Wall Environmental conditions: External conditions: Temperature: 5 C Relative Humidity: 95 % Internal conditions: Temperature: 15 C Relative Humidity: 65 %

38 Page: 11 Table of layers: Layer Width mm Thermal conduct. W/m.K Thermal m2.k/w Cumulative thermal m2.k/w Vapour resistivity GN.s/kg.m Vapour GN.s/kg Cumulative vapour GN.s/kg External surface Tiling, clay Standard cavity Sarking felt , airspace/timber battens Celotex , , , Celotex , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf High E Cavity Celotex , , , Celcon Solar - Normal - Trad joint 10mm , Plaster, dense , Internal surface , External surface Tiling, clay Sarking felt , Standard cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Tiling, concrete Sarking felt , airspace/timber battens Orientated Strand Board Celotex , , , mm Gyproc Wallboard , Internal surface , External surface Felt/bitumen layers High E Cavity Celotex , , , Plasterboard, standard , Internal surface , External surface Brick, outer leaf Gyproc Thermaline Super 65mm Internal surface

39 Vapour pressure table: Page: 12 Interface - between layers Interface temp. C Vapour pressure Pa Satur. vapour pressure Pa Cond. rate 60 days g/m2.h External surface No 1. External surface / Tiling, concrete No 2. Tiling, concrete / Sarking felt No 3. Sarking felt / airspace/timber battens No 4. airspace/timber battens / Orientated Strand Board No 5. Orientated Strand Board / Celotex No 6. Celotex / 12.5mm Gyproc Wallboard No mm Gyproc Wallboard / Internal surface No Internal surface No Dew point C Cond. rate g/m2.h Cond. risk Y/N Vapour pressure (Pa) Interface VPressure SatVPressure Interface temperature / Dew point graphical representation: Temperature (Pa) Interface Temperature DewPoint

40 Users Ref: Property: A Flat 3, 92, Ladbroke Road, REDHILL, RH1 1LB CONDENSATION RISK ANALYSIS Issued on: 18.March.2010 Prop Type Ref: DER: 0.00 TER: 0.00 SAP Rating: 69 C SAP Energy Cost: CO2 Emissions: 1.88 t/year EI Rating: 74 C Energy used: 243 kwh/m2/year Ene1: 0 ZC: Surveyor: A , Andrew Underwood, Tel: Address: 8 Beechwood Place, Narberth, Pembrokeshire, SA67 7EE Client: Software Version: EES SAP , October 2009 (Design System), BRE SAP Worksheet 9.81 SAP version: 9.81 Regs Region: England and Wales (Part L1A 2006), Calculation Type: Conversion Calculation method: BS EN ISO 6946, BS EN ISO 13370, BS 5250 Page: Roof Flat - Flat roof - conventional Environmental conditions: External conditions: Temperature: 5 C Relative Humidity: 95 % Internal conditions: Temperature: 15 C Relative Humidity: 65 %