SAP Calculations. M & T Homes Limited. Project: Plot 2, Wombourne Road Wombourne, Swindon, South Staffordshire, DY3 4NB

Transcription

1 SAP Calculations Client: M & T Homes Limited Project: Plot 2, Wombourne Road Wombourne, Swindon,, DY3 4NB Contact: Geoff Williams ECCO2 Limited geoffwilliams@ecco2ltd.co.uk

2 Building Regulation Compliance Page 2 of 13 Property: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/AENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version: SAP 2012, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed SUMMARY FOR INPUT DATA FOR New Build (As Designed) 1a TER and DER Fuel for main heating: Mains gas Fuel factor: 1.00 (mains gas) Target Carbon Dioxide Emission Rate (TER) kg/m 2 Dwelling Carbon Dioxide Emission Rate (DER) kg/m 2 OK 1b TFEE and DFEE Target Fabric Energy Efficiency (TFEE) kwh/m 2 Dwelling Fabric Energy Efficiency (DFEE) kwh/m 2 OK 2 Fabric U-values Element Average Highest External wall 0.23 (max. 0.30) 0.23 (max. 0.70) OK Party wall 0.00 (max. 0.20) - OK Floor 0.14 (max. 0.25) 0.19 (max. 0.70) OK Roof 0.10 (max. 0.20) 0.18 (max. 0.35) OK Openings 1.24 (max. 2.00) 1.50 (max. 3.30) OK 2a Thermal bridging Thermal bridging calculated from linear thermal transmittances for each junction 3 Air permeability Air permeability at 50 pascals: 5.45 (design value) Maximum 10.0 OK 4 Heating efficiency Main heating system: Boiler system with radiators or underfloor - Mains gas Data from database Ideal Independent System 30 Efficiency: 89.6% SEDBUK2009 Minimum: 88.0% OK Secondary heating system: None 5 Cylinder insulation Hot water storage Nominal cylinder loss: 1.95 kwh/day Permitted by DBSCG 2.24 OK Primary pipework insulated: Yes OK 6 Controls Space heating controls: Time and temperature zone control OK Hot water controls: Cylinderstat OK Independent timer for DHW OK Boiler interlock Yes OK 7 Low energy lights Percentage of fixed lights with low-energy 100% fittings:

3 Building Regulation Compliance Page 3 of 13 Minimum 75% OK 8 Mechanical ventilation Not applicable 9 Summertime temperature Overheating risk (Midlands): Not significant OK Based On: Overshading: Windows facing North: Windows facing North East: Windows facing East: Windows facing South East: Windows facing South: Windows facing West: Air change rate: Blinds/curtains: 10 Key features Party wall U-value Roof U-value Thermal bridging y-value Average 2.98 m 2, No overhang 0.84 m 2, No overhang 6.19 m 2, No overhang 0.84 m 2, No overhang 1.89 m 2, No overhang m 2, No overhang 8.00 ach None 0.00 W/m 2 K 0.10 W/m 2 K W/m 2 K

4 Predicted Energy Assessment Page 4 of 13 Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB Dwelling type: House, Detached Date of assessment: 11.Mar.2015 Produced by: ECCO2 Limited Total floor area: m 2 This document is a Predicted Energy Assessment for properties marketed when they are incomplete. It includes a predicted energy rating which might not represent the final energy rating of the property on completion. Once the property is completed, this rating will be updated and an official Energy Performance Certificate will be created for the property. This will include more detailed information about the energy performance of the completed property. The energy performance has been using the Government approved SAP2012 methodology and is rated in terms of the energy use per square meter of floor area; the energy efficiency is based on fuel costs and the environmental impact is based on carbon dioxide (CO2) emissions. Energy Efficiency Rating Environmental Impact (CO2) Rating Very energy efficient - lower running costs (92 plus) (81-91) (69-80) (55-68) (39-54) (21-38) (1-20) A B C D E Not energy efficient - higher running costs EU Directive England 2002/91/EC The energy efficiency rating is a measure of the overall efficiency of a home. The higher the rating the more energy efficient the home is and the lower the fuel bills are likely to be. F G 84 Very environmentally friendly - lower CO2 emissions (92 plus) (81-91) (69-80) (55-68) (39-54) (21-38) (1-20) A B C D E F G Not environmentally friendly - higher CO2 emissions 85 EU Directive England 2002/91/EC The environmental impact rating is a measure of a home's impact on the environment in terms of carbon dioxide (CO2) emissions. The higher the rating the less impact it has on the environment.

5 Summary Information Property: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/AENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version: SAP 2012, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed SUMMARY FOR INPUT DATA FOR New Build (As Designed) Page 5 of 13 Orientation East 1.0 Property Type House, Detached 2.0 Number of Storeys Date Built Property Age Band 4.0 Sheltered Sides Sunlight/Shade Average or unknown 6.0 Measurements Heat Loss Perimeter Internal Floor Area Average Storey Height Ground Floor: st Storey: Living Area Thermal Mass Parameter Simple calculation - Medium 9.0 External Walls Description Construction U-Value Kappa Gross Area Nett Area External Wall 1 External Wall 2 Cavity wall : dense plaster, dense block, filled cavity, any outside structure Solid wall : plasterboard on dabs, insulation, any outside structure Party walls Description Construction Kappa Area 9.2 Internal Walls Description Construction Kappa Area 10.0 External Roofs Description Construction U-Value Kappa Gross Area Nett Area External Roof 1 Plasterboard, insulated at ceiling level External Roof 2 Plasterboard, insulated flat roof Internal Ceilings Description Construction Kappa Area 11.0 HeatLoss Floors Description Construction U-Value Kappa Area Heat Loss Floor 1 Suspended concrete floor, carpeted Timber exposed floor, insulation between Heat Loss Floor joists 11.2 Internal Floors

6 SUMMARY FOR INPUT DATA FOR New Build (As Designed) Page 6 of 13 Description Construction Kappa Area 12.0 Opening Types Description Data Source Type Glazing Glazing Gap Argon Filled Solar Trans Frame Type Frame Factor U value Opening Type 1 Opening Type 2 Manufacturer Manufacturer Half Glazed Door Window Double Low-E Soft 0.05 Double Low-E Soft Openings Name Opening Type Location Orientation Curtain Type Overhang Ratio Wide Overhang Width Height Count Area Curtain Closed Opening 1 Half Glazed Door [1] External Wall 1 East 2.15 Opening 4 Window [1] External Wall 1 South East None Opening 5 Window [1] External Wall 1 West None Opening 2 Window [1] External Wall 1 East None Opening 3 Window [1] External Wall 1 North East None Opening 6 Half Glazed Door [1] External Wall 1 South 1.91 Opening 7 Window [1] External Wall 1 South None Opening 8 Window [1] External Wall 1 North None Conservatory None 15.0 Draught Proofing Draught Lobby No 17.0 Thermal Bridging Calculate Bridges 17.1 List of Bridges Source Type Bridge Type Length Psi Imported E1 Steel lintel with perforated steel base plate No E3 Sill Yes E4 Jamb Yes E5 Ground floor (normal) Yes E6 Intermediate floor within a dwelling Yes E10 Eaves (insulation at ceiling level) No E12 Gable (insulation at ceiling level) No Table K1 - Default E14 Flat roof No E16 Corner (normal) No Table K1 - Approved E17 Corner (inverted - internal area greater than external area) No 18.0 Pressure Testing Yes Designed q Property Tested? As Built q50 Same As Designed? 19.0 Mechanical Ventilation Mechanical Ventilation System No Present Approved Installation Windows open in hot weather Windows fully open Cross ventilation possible Yes Night Ventilation No Air change rate 8.00 Mechanical Ventilation data Type Type MV Reference Number Configuration MVHR Duct Insulated Manufacturer SFP Duct Type MVHR Efficiency Wet Rooms Brand, Model 20.0 Fans, Open Fireplaces, Flues MHS SHS Other Total Number of Chimneys Number of open flues 0 0 0

7 SUMMARY FOR INPUT DATA FOR New Build (As Designed) Page 7 of 13 Number of intermittent fans 5 Number of passive vents 0 Number of flueless gas fires Cooling System No 22.0 Lighting Internal Total number of light fittings 12 Total number of L.E.L. fittings 12 Percentage of L.E.L. fittings External External lights fitted Yes Light and motion sensors Yes 23.0 Electricity Tariff Standard 24.0 Heating Systems Main Heating 1 Database Description Combi Percentage of Heat 100 % Main Heating 2 None Description Percentage of Heat % Community Heating Secondary Heating None Water Heating Main Heating 1 Flue Gas Heat Recovery System No Waste Water Heat Recovery No Instantaneous System 1 Waste Water Heat Recovery No Instantaneous System 2 Waste Water Heat Recovery Storage No System Solar Panel No 25.0 Main Heating 1 Database Ref. No Fuel Type Mains gas Main Heating BGB TestMethod SAP Code 102 Efficiency ( Split Efficiences ) % Efficiency ( Split Efficiences ) % In Winter 90.6 In Summer 79.9 Model Name Manufacturer Controls CBI Time and temperature zone control PCDF Controls 0 Delayed Start Stat No Sap Code 2110 Burner Control Boiler Compensator HETAS approved System Oil Pump Inside FI Case FI Water Flue Type Balanced Smoke Control Area Fan Assisted Flue Yes Is MHS Pumped No pump Heat Emitter Radiators Underfloor Heating Flow Temperature Electric CPSU Temperature Combi boiler type Combi keep hot type Combi store type 27.0 Community Heating Space Community Heating PCDF Index Distribution Loss Distribution Loss Value Controls SAP Code Water Community Heating PCDF Index Distribution Loss

8 SUMMARY FOR INPUT DATA FOR New Build (As Designed) Page 8 of 13 Distribution Loss Value Charging Linked To Heat Use 28.0 Secondary Heating Description SHS efficiency % SAP Code HETAS Approved System Smoke Control Area Test Method Manufacturer Model Name 29.0 Water Heating HWP From main heating 1 Water use <= 125 litres/person/day Yes SAP Code 901 Immersion Heater Summer Immersion Suplementary Immersion Immersion Only Heating Hot Water 29.1 Flue Gas Heat Recovery System Database ID Brand Model Details 29.2 Waste Water Heat Recovery System Total rooms with shower and/or bath 30.0 Hot Water Cylinder Hot Water Cylinder Cylinder Stat Yes Cylinder In Heated Space Yes Independent Time Control Yes Insulation Type Foam Insulation Thickness Cylinder Volume Loss (kwh/day) Pipes insulation Fully insulated primary pipework In Airing Cupboard 31.0 Solar Panel Solar Panel Area Area Type Panel Type n0, a1, a2, A/G ratio Orientation Elevation Overshading Solar Storage Volume Pump electrically powered Combined Cylinder 32.0 Thermal Store None Thermal Store Pipework 33.0 Photovoltaic Unit Apportioned KWh/Year 34.0 Wind Turbines Terrain Type Urban Wind Turbines Count Apportioned Kwh/year Rotor Diameter Hub Height 35.0 Small-scale Hydro Electricity Generated Description Apportioned kwh/year Recommendations None Further measures to achieve even higher standards Solar water heating 4,000-6, B 86 B 87 Solar photovoltaic panels, 2.5 kwp 5,000-8, A 93 A 94

9 Thermal Bridging Page 9 of 13 Property: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/A ENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version: SAP 2012, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed Junction detail Source Psi Length Type (W/mK) (m) Result Reference External wall E1 Steel lintel with perforated steel base plate Tarmac ECD External wall E3 Sill Tarmac ECD External wall E4 Jamb Tarmac ECD External wall E5 Ground floor (normal) Tarmac ECD External wall E6 Intermediate floor within a dwelling Tarmac ECD External wall E10 Eaves (insulation at ceiling level) Tarmac ECD External wall E12 Gable (insulation at ceiling level) Tarmac ECD External wall E14 Flat roof Table K1 - Default Tarmac ECD External wall E16 Corner (normal) Tarmac ECD External wall E17 Corner (inverted - internal area greater than external area) Table K1 - Approved Tarmac ECD Total W/mK: 8.95 Y-Value W/m2K: 0.028

10 U-value calculator report Page 10 of 13 Project: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/A ENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version:, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed Building Elements: Roof Main Roof mm Insulation Roof Type: Pitched Roof, insulated flat ceiling Layer Description Thickness Conductivity Resistance Fraction Ext surface Layer 1 Gyproc Wallboard (12.5mm) Main construction 12.5 mm % Layer 2 Earthwool Loft Roll 40 Main construction 200 mm % Layer 3 Earthwool Loft Roll 40 Main construction 200 mm % Int surface Total resistance: Upper limit = m 2 K/W Lower limit = m 2 K/W Average = m 2 K/W Unheated space: None U-value (unrounded) = 0.1 W/m 2 K Total thickness: 413 mm U-value: 0.10 W/m 2 K

11 U-value calculator report Page 11 of 13 Project: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/A ENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version:, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed Building Elements: Roof Flat Roofs - Flat roof Roof Type: Flat Roof standard (no precipitation) Layer Description Thickness Conductivity Resistance Fraction Ext surface Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 Felt/bitumen layers or similar Main construction 10 mm % Celotex TD4000 Main construction 125 mm % Membrane Main construction 1 mm % Standard cavity/joists Main construction 170 mm % Corrections - Cavity Unventilated, Emissivity: Normal Gyproc Wallboard (12.5mm) Main construction 12.5 mm % Int surface Total resistance: Upper limit = m 2 K/W Lower limit = m 2 K/W Average = m 2 K/W Unheated space: None U-value (unrounded) = 0.18 W/m 2 K Total thickness: 319 mm U-value: 0.18 W/m 2 K

12 U-value calculator report Page 12 of 13 Project: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/A ENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version:, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed Building Elements: Wall Main Walls - Masonry wall full cavity fill-slabs Layer Description Thickness Conductivity Resistance Fraction Ext surface Layer 1 Layer 2 Layer 3 Layer 4 Layer 5 Brick, outer leaf Main construction 105 mm % Earthwool Dritherm 32 Ultimate Main construction 100 mm % Toplite Blocks Main construction 100 mm % Bridging - Mortar 100 mm % airspace/plaster dabs Main construction 15 mm % Bridging - Mortar 15 mm % Corrections - Cavity Unventilated, Emissivity: Normal Plasterboard (standard wallboard) Main construction 12.5 mm % Int surface Total resistance: Upper limit = m 2 K/W Lower limit = m 2 K/W Average = m 2 K/W Unheated space: None U-value (unrounded) = 0.23 W/m 2 K Total thickness: 333 mm U-value: 0.23 W/m 2 K Wall Walls to Garage - Masonry solid wall Layer Description Thickness Conductivity Resistance Fraction Ext surface Layer 1 Toplite Blocks Main construction 100 mm % Bridging - Mortar 100 mm % Layer 2 Kooltherm K17 Insulated Plasterboard (87.5mm) Main construction 87.5 mm % Int surface Total resistance: Upper limit = m 2 K/W Lower limit = m 2 K/W Average = m 2 K/W U-value (unrounded) = 0.22 W/m 2 K Unheated space: None Total thickness: 188 mm U-value: 0.22 W/m 2 K

13 U-value calculator report Page 13 of 13 Project: Plot 2, Wombourne Road, Swindon, Wombourne,, DY3 4NB CfSH Results Version: ENE1 Credits: N/A ENE2 Credits: N/A ENE7 Credits: N/A CfSH Level: N/A SAP version:, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed Building Elements: Floor Main Floors - Floor - suspended beam-and-block floor Floor Type: Suspended Floor Area = m 2, Perimeter = m, Wall thickness = mm, Soil: Clay Depth of underfloor space below ground:0.200 m Floor wind shielding: Average (suburban) Floor height above ground:h = m U-value of walls above ground:uw = m Ventilation openings per perimeter length:e = % Mean wind speed:v = m/s Resistance on solum:rg = m 2 K/W Layer Description Thickness Conductivity Resistance Fraction Ext surface Layer 1 Layer 2 Layer 3 Rackham Floor System. Main construction 175 mm % Polythene,1200 gauge Main construction 0.5 mm % Screed Main construction 65 mm % Int surface Total resistance: Upper limit = m 2 K/W Lower limit = m 2 K/W Average = m 2 K/W Unheated space: None U-value (unrounded) = 0.13 W/m 2 K Total thickness: 241 mm U-value: 0.13 W/m 2 K Floor Floor over Gargae mm Insulation Floor Type: Exposed Floor Layer Description Thickness Conductivity Resistance Fraction Ext surface Layer 1 Gyproc Wallboard (15mm) Fireline Board Main construction 15 mm % Layer 2 Mineral wool Main construction 200 mm % Layer 3 Chipboard Main construction 22 mm % Int surface Total resistance: Upper limit = m 2 K/W Lower limit = m 2 K/W Average = m 2 K/W U-value (unrounded) = 0.19 W/m 2 K Unheated space: None Total thickness: 237 mm U-value: 0.19 W/m 2 K