P574 SAP House 1

Project Information:

Assessed By:

Demi Beneke (STRO027754)

Building Type:

Semi-detached House

Dwelling Details:

Stage:

NEW DWELLING DESIGN STAGE

Total Floor Area:

101.32m²

Site Reference :

Park Lodge 5865

Plot Reference:

House 1

Address :

House 1

Client Details:

Name:

 

Address :

 

1a TER and DER

Fuel for main heating system: Mains gas
Fuel factor: 1.00 (mains gas)

1b TFEE and DFEE

2 Fabric U-values

2a Thermal bridging

Thermal bridging calculated from linear thermal transmittances for each junction

3 Air permeability

4 Heating efficiency

Main Heating system: Database: (rev 443, product index 018050):
Boiler systems with radiators or underfloor heating - mains gas
Brand name: Ideal
Model: LOGIC SYSTEM
Model qualifier: s24IE
(Regular)

Secondary heating system: Room heaters - wood
Closed room heater

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5 Cylinder insulation

6 Controls

• Space heating controls TTZC by plumbing and electrical services OK
• Hot water controls: Cylinderstat OK
• Independent timer for DHW OK
• Boiler interlock: Yes OK

7 Low energy lights

8 Mechanical ventilation

Not applicable

9 Summertime temperature

Overheating risk (South England): Not significant OK

Based on:

• Overshading: Average or unknown
• Windows facing: North East 1.3m²
• Windows facing: South East 0.72m²
• Windows facing: South East 0.72m²
• Windows facing: South West 1.07m²
• Windows facing: North East 0.84m²
• Windows facing: North East 1.3m²
• Windows facing: South East 1.3m²
• Windows facing: South West 1.3m²
• Windows facing: South West 1.3m²
• Ventilation rate: 4.00
• Blinds/curtains: None

10 Key features

• Roofs U-value 0.11 W/m²K
• Party Walls U-value 0 W/m²K
• Floors U-value 0.12 W/m²K
• Secondary heating (wood logs)
• Secondary heating fuel wood logs

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Predicted Energy Assessment

Property:

House 1

Dwelling type:

Semi-detached House

Date of assessment:

17 June 2019

Produced by:

Demi Beneke

Total floor area:

101.32 m²

This is a Predicted Energy Assessment for a property which is not yet complete. It includes a predicted energy rating which might not represent the final energy rating of the property on completion. Once the property is completed, an Energy Performance Certificate is required providing information about the energy performance of the completed property.

Energy performance has been assessed using the SAP 2012 methodology and is rated in terms of the energy use per square metre of floor area, energy efficiency based on fuel costs and environmental impact based on carbon dioxide (CO2) emissions.

SAP Input

Property Details: House 1

Address:

House 1

Located in:

England

Region:

South England

UPRN:

 

Date of assessment:

17 June 2019

Date of certificate:

17 June 2019

Assessment type:

New dwelling design stage

Transaction type:

New dwelling

Tenure type:

Unknown

Related party disclosure:

No related party

Thermal Mass Parameter:

Indicative Value Medium

Water use <= 125 litres/person/day:

True

PCDF Version:

443

Property description:

Dwelling type:

House

Detachment:

Semi-detached

Year Completed:

2019

Floor Location: Floor area:

Living area:

14.87 m² (fraction 0.147)

Front of dwelling faces:

North East

Opening types:

Overshading:

Average or unknown

Opaque Elements:

Thermal bridges:

Thermal bridges: User-defined (individual PSI-values) Y-Value = 0.0481

Ventilation:

Pressure test:

Yes (As designed)

Ventilation:

Natural ventilation (extract fans)

Number of chimneys:

0

Number of open flues:

0

Number of fans:

3

Number of passive stacks:

0

Number of sides sheltered:

2

Pressure test:

5

Main heating system:

Main heating system: Boiler systems with radiators or underfloor heating
Gas boilers and oil boilers
Fuel: mains gas
Info Source: Boiler Database
Database: (rev 443, product index 018050) Efficiency: Winter 80.1 % Summer: 90.8
Brand name: Ideal
Model: LOGIC SYSTEM
Model qualifier: s24IE
(Regular boiler)
Systems with radiators

Central heating pump :

2013 or later

Design flow temperature:

Unknown

Boiler interlock:

Yes

Weather Compensator

 

Main heating Control:

Main heating Control:

Time and temperature zone control by suitable arrangement of plumbing and electrical services

Control code:

2110

Secondary heating system:

Secondary heating system: Room heaters
Solid fuel room heaters
Fuel :wood logs
Info Source: SAP Tables
Closed room heater
HETAS Approved

Water heating:

Water heating: From main heating system
Water code: 901
Fuel :mains gas
Hot water cylinder

Cylinder volume:

210 litres

Cylinder insulation:

Measured loss, 2.3kWh/day

Primary pipework insulation:

True

Cylinderstat:

True

Cylinder in heated space:

True

Solar panel:

False

Others:

Electricity tariff:

Standard Tariff

In Smoke Control Area:

Unknown

Conservatory:

No conservatory

Low energy lights:

100%

Terrain type:

Low rise urban / suburban

EPC language:

English

Wind turbine:

No

Photovoltaics:

None

Assess Zero Carbon Home:

No

Stroma FSAP 2012 Version: 1.0.4.18 (SAP 9.92) - http://www.stroma.com Page 3 of 3

SAP WorkSheet: New dwelling design stage

User Details:

Assessor Name:

Demi Beneke

Stroma Number:

STRO027754

Software Name:

Stroma FSAP 2012

Software Version:

Version: 1.0.4.18

Property Address:

House 1

Address :

House 1

1. Overall dwelling dimensions:

2. Ventilation rate:

main heating / secondary heating / other / total m³ per hour

Air changes per hour

Infiltration due to chimneys, flues and fans = (6a)+(6b)+(7a)+(7b)+(7c) = 30 ÷ (5) = 0.12 (8)

If a pressurisation test has been carried out or is intended, proceed to (17), otherwise continue from (9) to (16)

Number of storeys in the dwelling (ns) 0 (9)

Additional infiltration [(9)-1]x0.1 = 0 (10)

Structural infiltration: 0.25 for steel or timber frame or 0.35 for masonry construction 0 (11)

if both types of wall are present, use the value corresponding to the greater wall area (after deducting areas of openings); if equal user 0.35

If suspended wooden floor, enter 0.2 (unsealed) or 0.1 (sealed), else enter 0 0 (12)

If no draught lobby, enter 0.05, else enter 0 0 (13)

Percentage of windows and doors draught stripped 0 (14)

Window infiltration 0.25 - [0.2 x (14) ÷ 100] = 0 (15)

Infiltration rate (8) + (10) + (11) + (12) + (13) + (15) = 0 (16)

Air permeability value, q50, expressed in cubic metres per hour per square metre of envelope area 5 (17)

If based on air permeability value, then (18) = [(17) ÷ 20]+(8), otherwise (18) = (16) 0.37 (18)

Air permeability value applies if a pressurisation test has been done or a degree air permeability is being used

Number of sides sheltered 2 (19)

Shelter factor (20) = 1 - [0.075 x (19)] = 0.85 (20)

Infiltration rate incorporating shelter factor (21) = (18) x (20) = 0.31 (21)

Infiltration rate modified for monthly wind speed

Monthly average wind speed from Table 7 (22)m= 5.1 5 4.9 4.4 4.3 3.8 3.8 3.7 4 4.3 4.5 4.7

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Wind Factor (22a)m = (22)m ÷ 4

(22a)m= 1.27 1.25 1.23 1.1 1.08 0.95 0.95 0.92 1 1.08 1.12 1.18

Adjusted infiltration rate (allowing for shelter and wind speed) = (21a) x (22a)m 0.4 0.39 0.38 0.34 0.34 0.3 0.3 0.29 0.31 0.34 0.35 0.37

Calculate effective air change rate for the applicable case

• If mechanical ventilation: 0 (23a)
• If exhaust air heat pump using Appendix N, (23b) = (23a) × Fmv (equation (N5)) , otherwise (23b) = (23a) 0 (23b)
• If balanced with heat recovery: efficiency in % allowing for in-use factor (from Table 4h) = 0 (23c)
• a) If balanced mechanical ventilation with heat recovery (MVHR) (24a)m = (22b)m + (23b) × [1 – (23c) ÷ 100] (24a)m= 0 0 0 0 0 0 0 0 0 0 0 0 (24a)
• b) If balanced mechanical ventilation without heat recovery (MV) (24b)m = (22b)m + (23b) (24b)m= 0 0 0 0 0 0 0 0 0 0 0 0 (24b)
• c) If whole house extract ventilation or positive input ventilation from outside if (22b)m < 0.5 × (23b), then (24c) = (23b); otherwise (24c) = (22b) m + 0.5 × (23b) (24c)m= 0 0 0 0 0 0 0 0 0 0 0 0 (24c)
• d) If natural ventilation or whole house positive input ventilation from loft if (22b)m = 1, then (24d)m = (22b)m otherwise (24d)m = 0.5 + [(22b)m² x 0.5] (24d)m= 0.58 0.58 0.57 0.56 0.56 0.54 0.54 0.54 0.55 0.56 0.56 0.57 (24d)

Effective air change rate - enter (24a) or (24b) or (24c) or (24d) in box (25) (25)m= 0.58 0.58 0.57 0.56 0.56 0.54 0.54 0.54 0.55 0.56 0.56 0.57 (25)

3. Heat losses and heat loss parameter:

ELEMENT Gross area (m²) Openings m² Net Area A ,m² U-value W/m2K A X U (W/K) k-value kJ/m²·K A X k kJ/K

• Doors Type 1 2.15 x 1.8 = 3.87 (26)
• Doors Type 2 3.13 x 1.4 = 4.382 (26)
• Windows Type 1 1.3 x1/[1/( 1.4 )+ 0.04] = 1.72 (27)
• Windows Type 2 0.72 x1/[1/( 1.4 )+ 0.04] = 0.95 (27)
• Windows Type 3 0.72 x1/[1/( 1.4 )+ 0.04] = 0.95 (27)
• Windows Type 4 1.07 x1/[1/( 1.4 )+ 0.04] = 1.42 (27)
• Windows Type 5 0.84 x1/[1/( 1.4 )+ 0.04] = 1.11 (27)
• Windows Type 6 1.3 x1/[1/( 1.4 )+ 0.04] = 1.72 (27)
• Windows Type 7 1.3 x1/[1/( 1.4 )+ 0.04] = 1.72 (27)
• Windows Type 8 1.3 x1/[1/( 1.4 )+ 0.04] = 1.72 (27)
• Windows Type 9 1.3 x1/[1/( 1.4 )+ 0.04] = 1.72 (27)
• Floor 50.66 x 0.12 = 6.0792 (28)
• Walls 104.03 15.13 88.9 x 0.2 = 17.78 (29)
• Roof 50.66 0 50.66 x 0.11 = 5.57 (30)
• Total area of elements, m² 205.35 (31)
• Party wall 46.15 x 0 = 0 (32)

* for windows and roof windows, use effective window U-value calculated using formula 1/[(1/U-value)+0.04] as given in paragraph 3.2

** include the areas on both sides of internal walls and partitions

Fabric heat loss, W/K = S (A x U) (26)…(30) + (32) = 50.74 (33)

Heat capacity Cm = S(A x k ) ((28)…(30) + (32) + (32a)…(32e) = 14593.04 (34)

Thermal mass parameter (TMP = Cm ÷ TFA) in kJ/m²K Indicative Value: Medium 250 (35)

For design assessments where the details of the construction are not known precisely the indicative values of TMP in Table 1f can be used instead of a detailed calculation.

Thermal bridges : S (L x Y) calculated using Appendix K 9.88 (36)

if details of thermal bridging are not known (36) = 0.05 x (31)

Total fabric heat loss (33) + (36) = 60.62 (37)

Ventilation heat loss calculated monthly

(38)m = 0.33 × (25)m x (5)

(38)m= 48.99 48.73 48.47 47.28 47.05 46.01 46.01 45.82 46.41 47.05 47.51 47.98 (38)

Heat transfer coefficient, W/K (39)m = (37) + (38)m

(39)m= 109.61 109.35 109.09 107.9 107.67 106.63 106.63 106.44 107.03 107.67 108.13 108.6

Average = Sum(39) /12= 1…12 107.9 (39)

Heat loss parameter (HLP), W/m²K (40)m = (39)m ÷ (4)

(40)m= 1.08 1.08 1.08 1.06 1.06 1.05 1.05 1.05 1.06 1.06 1.07 1.07

Average = Sum(40) /12= 1…12 1.06 (40)

Number of days in month (Table 1a)

(41)m= 31 28 31 30 31 30 31 31 30 31 30 31 (41)

4. Water heating energy requirement: kWh/year:

Assumed occupancy, N 2.75 (42)

if TFA > 13.9, N = 1 + 1.76 x [1 - exp(-0.000349 x (TFA -13.9)2)] + 0.0013 x (TFA -13.9)

if TFA £ 13.9, N = 1

Annual average hot water usage in litres per day Vd,average = (25 x N) + 36 99.55 (43)

Reduce the annual average hot water usage by 5% if the dwelling is designed to achieve a water use target of not more that 125 litres per person per day (all water use, hot and cold)

Hot water usage in litres per day for each month Vd,m = factor from Table 1c x (43)

(44)m= 109.5 105.52 101.54 97.56 93.57 89.59 89.59 93.57 97.56 101.54 105.52 109.5

Total = Sum(44) = 1…12 1194.55 (44)

Energy content of hot water used - calculated monthly = 4.190 x Vd,m x nm x DTm / 3600 kWh/month (see Tables 1b, 1c, 1d)

(45)m= 162.39 142.02 146.56 127.77 122.6 105.79 98.03 112.5 113.84 132.67 144.82 157.26

Total = Sum(45) = 1…12 1566.25 (45)

If instantaneous water heating at point of use (no hot water storage), enter 0 in boxes (46) to (61)

(46)m= 24.36 21.3 21.98 19.17 18.39 15.87 14.71 16.87 17.08 19.9 21.72 23.59 (46)

Water storage loss:

Storage volume (litres) including any solar or WWHRS storage within same vessel 210 (47)

If community heating and no tank in dwelling, enter 110 litres in (47)

Otherwise if no stored hot water (this includes instantaneous combi boilers) enter ‘0’ in (47)

Water storage loss:

a) If manufacturer’s declared loss factor is known (kWh/day): 2.3 (48)

Temperature factor from Table 2b 0.54 (49)

Energy lost from water storage, kWh/year (48) x (49) = 1.24 (50)

b) If manufacturer’s declared cylinder loss factor is not known:

Hot water storage loss factor from Table 2 (kWh/litre/day) 0 (51)

If community heating see section 4.3

Volume factor from Table 2a 0 (52)

Temperature factor from Table 2b 0 (53)

Energy lost from water storage, kWh/year (47) x (51) x (52) x (53) = 0 (54)

Enter (50) or (54) in (55) 1.24 (55)

Water storage loss calculated for each month ((56)m = (55) × (41)m

(56)m= 38.5 34.78 38.5 37.26 38.5 37.26 38.5 38.5 37.26 38.5 37.26 38.5 (56)

If cylinder contains dedicated solar storage, (57)m = (56)m x [(50) – (H11)] ÷ (50), else (57)m = (56)m where (H11) is from Appendix H

(57)m= 38.5 34.78 38.5 37.26 38.5 37.26 38.5 38.5 37.26 38.5 37.26 38.5 (57)

Primary circuit loss (annual) from Table 3 0 (58)

Primary circuit loss calculated for each month (59)m = (58) ÷ 365 × (41)m (modified by factor from Table H5 if there is solar water heating and a cylinder thermostat)

(59)m= 23.26 21.01 23.26 22.51 23.26 22.51 23.26 23.26 22.51 23.26 22.51 23.26 (59)

Combi loss calculated for each month (61)m = (60) ÷ 365 × (41)m

(61)m= 0 0 0 0 0 0 0 0 0 0 0 0 (61)

Total heat required for water heating calculated for each month (62)m = 0.85 × (45)m + (46)m + (57)m + (59)m + (61)m

(62)m= 224.15 197.81 208.32 187.54 184.36 165.57 159.8 174.26 173.61 194.43 204.59 219.03 (62)

Solar DHW input calculated using Appendix G or Appendix H (negative quantity) (enter '0' if no solar contribution to water heating) (add additional lines if FGHRS and/or WWHRS applies, see Appendix G)

(63)m= 0 0 0 0 0 0 0 0 0 0 0 0 (63)

Output from water heater

(64)m= 224.15 197.81 208.32 187.54 184.36 165.57 159.8 174.26 173.61 194.43 204.59 219.03

Output from water heater (annual) 1…12 2293.47 (64)

Heat gains from water heating, kWh/month 0.25 ´ [0.85 × (45)m + (61)m] + 0.8 x [(46)m + (57)m + (59)m ]

(65)m= 103.4 91.85 98.14 90.3 90.18 82.99 82.01 86.82 85.67 93.52 95.97 101.7 (65)

include (57)m in calculation of (65)m only if cylinder is in the dwelling or hot water is from community heating

5. Internal gains (see Table 5 and 5a):

Metabolic gains (Table 5), Watts

(66)m= 165.08 165.08 165.08 165.08 165.08 165.08 165.08 165.08 165.08 165.08 165.08 165.08 (66)

Lighting gains (calculated in Appendix L, equation L9 or L9a), also see Table 5

(67)m= 63.01 55.97 45.52 34.46 25.76 21.75 23.5 30.54 41 52.05 60.75 64.77 (67)

Appliances gains (calculated in Appendix L, equation L13 or L13a), also see Table 5

(68)m= 385.74 389.74 379.65 358.18 331.07 305.6 288.58 284.57 294.66 316.13 343.24 368.72 (68)

Cooking gains (calculated in Appendix L, equation L15 or L15a), also see Table 5

(69)m= 54.26 54.26 54.26 54.26 54.26 54.26 54.26 54.26 54.26 54.26 54.26 54.26 (69)

Pumps and fans gains (Table 5a)

(70)m= 3 3 3 3 3 3 3 3 3 3 3 3 (70)

Losses e.g. evaporation (negative values) (Table 5)

(71)m= -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 -110.06 (71)

Water heating gains (Table 5)

(72)m= 138.99 136.69 131.91 125.42 121.2 115.27 110.23 116.69 118.98 125.7 133.29 136.7 (72)

Total internal gains = (66)m + (67)m + (68)m + (69)m + (70)m + (71)m + (72)m (73)m= 700.03 694.68 669.37 630.35 590.32 554.9 534.59 544.09 566.93 606.18 649.57 682.47 (73)

6. Solar gains:

Solar gains are calculated using solar flux from Table 6a and associated equations to convert to the applicable orientation.

Orientation: Access Factor Area Flux g_ FF Gains

Table 6d m² Table 6a Table 6b Table 6c (W)

Northeast 0.9x 0.77 x 1.3 x 11.28 x 0.71 x 0.7 = 5.05 (75)
Northeast 0.9x 0.77 x 0.84 x 11.28 x 0.71 x 0.7 = 3.26 (75)
Northeast 0.9x 0.77 x 1.3 x 11.28 x 0.71 x 0.7 = 5.05 (75)
Northeast 0.9x 0.77 x 1.3 x 22.97 x 0.71 x 0.7 = 10.28 (75)
Northeast 0.9x 0.77 x 0.84 x 22.97 x 0.71 x 0.7 = 6.64 (75)
Northeast 0.9x 0.77 x 1.3 x 22.97 x 0.71 x 0.7 = 10.28 (75)
Northeast 0.9x 0.77 x 1.3 x 41.38 x 0.71 x 0.7 = 18.53 (75)
Northeast 0.9x 0.77 x 0.84 x 41.38 x 0.71 x 0.7 = 11.97 (75)
Northeast 0.9x 0.77 x 1.3 x 41.38 x 0.71 x 0.7 = 18.53 (75)
Northeast 0.9x 0.77 x 1.3 x 67.96 x 0.71 x 0.7 = 30.43 (75)
Northeast 0.9x 0.77 x 0.84 x 67.96 x 0.71 x 0.7 = 19.66 (75)
Northeast 0.9x 0.77 x 1.3 x 67.96 x 0.71 x 0.7 = 30.43 (75)
Northeast 0.9x 0.77 x 1.3 x 91.35 x 0.71 x 0.7 = 40.9 (75)
Northeast 0.9x 0.77 x 0.84 x 91.35 x 0.71 x 0.7 = 26.43 (75)
Northeast 0.9x 0.77 x 1.3 x 91.35 x 0.71 x 0.7 = 40.9 (75)
Northeast 0.9x 0.77 x 1.3 x 97.38 x 0.71 x 0.7 = 43.6 (75)
Northeast 0.9x 0.77 x 0.84 x 97.38 x 0.71 x 0.7 = 28.17 (75)
Northeast 0.9x 0.77 x 1.3 x 97.38 x 0.71 x 0.7 = 43.6 (75)
Northeast 0.9x 0.77 x 1.3 x 91.1 x 0.71 x 0.7 = 40.79 (75)
Northeast 0.9x 0.77 x 0.84 x 91.1 x 0.71 x 0.7 = 26.36 (75)
Northeast 0.9x 0.77 x 1.3 x 91.1 x 0.71 x 0.7 = 40.79 (75)
Northeast 0.9x 0.77 x 1.3 x 72.63 x 0.71 x 0.7 = 32.52 (75)
Northeast 0.9x 0.77 x 0.84 x 72.63 x 0.71 x 0.7 = 21.01 (75)
Northeast 0.9x 0.77 x 1.3 x 72.63 x 0.71 x 0.7 = 32.52 (75)
Northeast 0.9x 0.77 x 1.3 x 50.42 x 0.71 x 0.7 = 22.58 (75)
Northeast 0.9x 0.77 x 0.84 x 50.42 x 0.71 x 0.7 = 14.59 (75)
Northeast 0.9x 0.77 x 1.3 x 50.42 x 0.71 x 0.7 = 22.58 (75)
Northeast 0.9x 0.77 x 1.3 x 28.07 x 0.71 x 0.7 = 12.57 (75)
Northeast 0.9x 0.77 x 0.84 x 28.07 x 0.71 x 0.7 = 8.12 (75)
Northeast 0.9x 0.77 x 1.3 x 28.07 x 0.71 x 0.7 = 12.57 (75)
Northeast 0.9x 0.77 x 1.3 x 14.2 x 0.71 x 0.7 = 6.36 (75)
Northeast 0.9x 0.77 x 0.84 x 14.2 x 0.71 x 0.7 = 4.11 (75)
Northeast 0.9x 0.77 x 1.3 x 14.2 x 0.71 x 0.7 = 6.36 (75)
Northeast 0.9x 0.77 x 1.3 x 9.21 x 0.71 x 0.7 = 4.13 (75)
Northeast 0.9x 0.77 x 0.84 x 9.21 x 0.71 x 0.7 = 2.67 (75)
Northeast 0.9x 0.77 x 1.3 x 9.21 x 0.71 x 0.7 = 4.13 (75)
Southeast 0.9x 0.77 x 0.72 x 36.79 x 0.71 x 0.7 = 9.12 (77)
Southeast 0.9x 0.77 x 0.72 x 36.79 x 0.71 x 0.7 = 9.12 (77)
Southeast 0.9x 0.77 x 1.3 x 36.79 x 0.71 x 0.7 = 16.47 (77)
Southeast 0.9x 0.77 x 0.72 x 62.67 x 0.71 x 0.7 = 15.54 (77)
Southeast 0.9x 0.77 x 0.72 x 62.67 x 0.71 x 0.7 = 15.54 (77)
Southeast 0.9x 0.77 x 1.3 x 62.67 x 0.71 x 0.7 = 28.06 (77)
Southeast 0.9x 0.77 x 0.72 x 85.75 x 0.71 x 0.7 = 21.27 (77)
Southeast 0.9x 0.77 x 0.72 x 85.75 x 0.71 x 0.7 = 21.27 (77)
Southeast 0.9x 0.77 x 1.3 x 85.75 x 0.71 x 0.7 = 38.4 (77)
Southeast 0.9x 0.77 x 0.72 x 106.25 x 0.71 x 0.7 = 26.35 (77)
Southeast 0.9x 0.77 x 0.72 x 106.25 x 0.71 x 0.7 = 26.35 (77)
Southeast 0.9x 0.77 x 1.3 x 106.25 x 0.71 x 0.7 = 47.57 (77)
Southeast 0.9x 0.77 x 0.72 x 119.01 x 0.71 x 0.7 = 29.51 (77)
Southeast 0.9x 0.77 x 0.72 x 119.01 x 0.71 x 0.7 = 29.51 (77)
Southeast 0.9x 0.77 x 1.3 x 119.01 x 0.71 x 0.7 = 53.29 (77)
Southeast 0.9x 0.77 x 0.72 x 118.15 x 0.71 x 0.7 = 29.3 (77)
Southeast 0.9x 0.77 x 0.72 x 118.15 x 0.71 x 0.7 = 29.3 (77)
Southeast 0.9x 0.77 x 1.3 x 118.15 x 0.71 x 0.7 = 52.9 (77)
Southeast 0.9x 0.77 x 0.72 x 113.91 x 0.71 x 0.7 = 28.25 (77)
Southeast 0.9x 0.77 x 0.72 x 113.91 x 0.71 x 0.7 = 28.25 (77)
Southeast 0.9x 0.77 x 1.3 x 113.91 x 0.71 x 0.7 = 51 (77)
Southeast 0.9x 0.77 x 0.72 x 104.39 x 0.71 x 0.7 = 25.89 (77)
Southeast 0.9x 0.77 x 0.72 x 104.39 x 0.71 x 0.7 = 25.89 (77)
Southeast 0.9x 0.77 x 1.3 x 104.39 x 0.71 x 0.7 = 46.74 (77)
Southeast 0.9x 0.77 x 0.72 x 92.85 x 0.71 x 0.7 = 23.03 (77)
Southeast 0.9x 0.77 x 0.72 x 92.85 x 0.71 x 0.7 = 23.03 (77)
Southeast 0.9x 0.77 x 1.3 x 92.85 x 0.71 x 0.7 = 41.57 (77)
Southeast 0.9x 0.77 x 0.72 x 69.27 x 0.71 x 0.7 = 17.18 (77)
Southeast 0.9x 0.77 x 0.72 x 69.27 x 0.71 x 0.7 = 17.18 (77)
Southeast 0.9x 0.77 x 1.3 x 69.27 x 0.71 x 0.7 = 31.01 (77)
Southeast 0.9x 0.77 x 0.72 x 44.07 x 0.71 x 0.7 = 10.93 (77)
Southeast 0.9x 0.77 x 0.72 x 44.07 x 0.71 x 0.7 = 10.93 (77)
Southeast 0.9x 0.77 x 1.3 x 44.07 x 0.71 x 0.7 = 19.73 (77)
Southeast 0.9x 0.77 x 0.72 x 31.49 x 0.71 x 0.7 = 7.81 (77)
Southeast 0.9x 0.77 x 0.72 x 31.49 x 0.71 x 0.7 = 7.81 (77)
Southeast 0.9x 0.77 x 1.3 x 31.49 x 0.71 x 0.7 = 14.1 (77)
Southwest0.9x 0.77 x 1.07 x 36.79 0.71 x 0.7 = 13.56 (79)
Southwest0.9x 0.77 x 1.3 x 36.79 0.71 x 0.7 = 16.47 (79)
Southwest0.9x 0.77 x 1.3 x 36.79 0.71 x 0.7 = 16.47 (79)
Southwest0.9x 0.77 x 1.07 x 62.67 0.71 x 0.7 = 23.1 (79)
Southwest0.9x 0.77 x 1.3 x 62.67 0.71 x 0.7 = 28.06 (79)
Southwest0.9x 0.77 x 1.3 x 62.67 0.71 x 0.7 = 28.06 (79)
Southwest0.9x 0.77 x 1.07 x 85.75 0.71 x 0.7 = 31.6 (79)
Southwest0.9x 0.77 x 1.3 x 85.75 0.71 x 0.7 = 38.4 (79)
Southwest0.9x 0.77 x 1.3 x 85.75 0.71 x 0.7 = 38.4 (79)
Southwest0.9x 0.77 x 1.07 x 106.25 0.71 x 0.7 = 39.16 (79)
Southwest0.9x 0.77 x 1.3 x 106.25 0.71 x 0.7 = 47.57 (79)
Southwest0.9x 0.77 x 1.3 x 106.25 0.71 x 0.7 = 47.57 (79)
Southwest0.9x 0.77 x 1.07 x 119.01 0.71 x 0.7 = 43.86 (79)
Southwest0.9x 0.77 x 1.3 x 119.01 0.71 x 0.7 = 53.29 (79)
Southwest0.9x 0.77 x 1.3 x 119.01 0.71 x 0.7 = 53.29 (79)
Southwest0.9x 0.77 x 1.07 x 118.15 0.71 x 0.7 = 43.54 (79)
Southwest0.9x 0.77 x 1.3 x 118.15 0.71 x 0.7 = 52.9 (79)
Southwest0.9x 0.77 x 1.3 x 118.15 0.71 x 0.7 = 52.9 (79)
Southwest0.9x 0.77 x 1.07 x 113.91 0.71 x 0.7 = 41.98 (79)
Southwest0.9x 0.77 x 1.3 x 113.91 0.71 x 0.7 = 51 (79)
Southwest0.9x 0.77 x 1.3 x 113.91 0.71 x 0.7 = 51 (79)
Southwest0.9x 0.77 x 1.07 x 104.39 0.71 x 0.7 = 38.47 (79)
Southwest0.9x 0.77 x 1.3 x 104.39 0.71 x 0.7 = 46.74 (79)
Southwest0.9x 0.77 x 1.3 x 104.39 0.71 x 0.7 = 46.74 (79)
Southwest0.9x 0.77 x 1.07 x 92.85 0.71 x 0.7 = 34.22 (79)
Southwest0.9x 0.77 x 1.3 x 92.85 0.71 x 0.7 = 41.57 (79)
Southwest0.9x 0.77 x 1.3 x 92.85 0.71 x 0.7 = 41.57 (79)
Southwest0.9x 0.77 x 1.07 x 69.27 0.71 x 0.7 = 25.53 (79)
Southwest0.9x 0.77 x 1.3 x 69.27 0.71 x 0.7 = 31.01 (79)
Southwest0.9x 0.77 x 1.3 x 69.27 0.71 x 0.7 = 31.01 (79)
Southwest0.9x 0.77 x 1.07 x 44.07 0.71 x 0.7 = 16.24 (79)
Southwest0.9x 0.77 x 1.3 x 44.07 0.71 x 0.7 = 19.73 (79)
Southwest0.9x 0.77 x 1.3 x 44.07 0.71 x 0.7 = 19.73 (79)
Southwest0.9x 0.77 x 1.07 x 31.49 0.71 x 0.7 = 11.6 (79)
Southwest0.9x 0.77 x 1.3 x 31.49 0.71 x 0.7 = 14.1 (79)
Southwest0.9x 0.77 x 1.3 x 31.49 0.71 x 0.7 = 14.1 (79)

Solar gains in watts, calculated for each month (83)m = Sum(74)m …(82)m

(83)m= 94.6 165.58 238.35 315.09 370.97 376.23 359.42 316.52 264.73 186.18 114.12 80.43 (83)

Total gains – internal and solar (84)m = (73)m + (83)m , watts (84)m= 794.63 860.26 907.71 945.44 961.3 931.13 894.01 860.61 831.66 792.36 763.69 762.9 (84)

7. Mean internal temperature (heating season)

Temperature during heating periods in the living area from Table 9, Th1 (°C) 21 (85)

Utilisation factor for gains for living area, h1,m (see Table 9a) (86)m= 0.99 0.99 0.98 0.94 0.86 0.69 0.52 0.56 0.79 0.95 0.99 0.99 (86)

Mean internal temperature in living area T1 (follow steps 3 to 7 in Table 9c) (87)m= 20.02 20.15 20.35 20.61 20.83 20.96 20.99 20.99 20.92 20.65 20.29 20 (87)

Temperature during heating periods in rest of dwelling from Table 9, Th2 (°C) (88)m= 20.02 20.02 20.02 20.03 20.03 20.04 20.04 20.04 20.04 20.03 20.03 20.02 (88)

Utilisation factor for gains for rest of dwelling, h2,m (see Table 9a) (89)m= 0.99 0.98 0.97 0.92 0.81 0.6 0.41 0.45 0.71 0.93 0.98 0.99 (89)

Mean internal temperature in the rest of dwelling T2 (follow steps 3 to 7 in Table 9c) (90)m= 18.73 18.91 19.2 19.58 19.87 20.02 20.04 20.04 19.98 19.64 19.13 18.7 (90)

fLA = Living area ÷ (4) = 0.15 (91)

Mean internal temperature (for the whole dwelling) = fLA × T1 + (1 – fLA) × T2 (92)m= 18.92 19.09 19.37 19.73 20.01 20.15 20.18 20.18 20.12 19.79 19.3 18.89 (92)

Apply adjustment to the mean internal temperature from Table 4e, where appropriate (93)m= 18.92 19.09 19.37 19.73 20.01 20.15 20.18 20.18 20.12 19.79 19.3 18.89 (93)

8. Space heating requirement

Set Ti to the mean internal temperature obtained at step 11 of Table 9b, so that Ti,m=(76)m and re-calculate the utilisation factor for gains using Table 9a

Utilisation factor for gains, hm: (94)m= 0.99 0.98 0.96 0.92 0.81 0.61 0.42 0.46 0.72 0.92 0.98 0.99 (94)

Useful gains, hmGm , W = (94)m x (84)m (95)m= 784.63 842.91 873.73 866.8 779.7 572.43 379.29 398.53 598.34 728.92 745.77 754.96 (95)

Monthly average external temperature from Table 8 (96)m= 4.3 4.9 6.5 8.9 11.7 14.6 16.6 16.4 14.1 10.6 7.1 4.2 (96)

Heat loss rate for mean internal temperature, Lm , W =[(39)m x [(93)m– (96)m ] (97)m= 1602.45 1551.71 1403.94 1168.53 895.02 592.26 381.5 402.05 643.91 989.69 1319.63 1595.38 (97)

Space heating requirement for each month, kWh/month = 0.024 x [(97)m – (95)m] x (41)m (98)m= 608.45 476.31 394.47 217.24 85.8 0 0 0 0 194.01 413.18 625.27

Total per year (kWh/year) = Sum(98) = 1...5,9...12 3014.73 (98)

Space heating requirement in kWh/m²/year 29.75 (99)

9a. Energy requirements – Individual heating systems including micro-CHP)

Space heating:

• Fraction of space heat from secondary/supplementary system 0.1 (201)
• Fraction of space heat from main system(s) (202) = 1 – (201) = 0.9 (202)
• Fraction of total heating from main system 1 (204) = (202) × [1 – (203)] = 0.9 (204)
• Efficiency of main space heating system 1 93.8 (206)
• Efficiency of secondary/supplementary heating system, % 65 (208)

(211)m = {[(98)m x (204)] } x 100 ÷ (206) (211)

583.8 457.02 378.49 208.44 82.32 0 0 0 0 186.15 396.44 599.94

Total (kWh/year) =Sum(211) = 1...5,10.…12 2892.6 (211)

Space heating fuel (secondary), kWh/month = {[(98)m x (201)] } x 100 ÷ (208) (215)m= 93.61 73.28 60.69 33.42 13.2 0 0 0 0 29.85 63.57 96.2

Total (kWh/year) =Sum(215) = 1...5,10.…12 463.81 (215)

Water heating

Output from water heater (calculated above) 224.15 197.81 208.32 187.54 184.36 165.57 159.8 174.26 173.61 194.43 204.59 219.03

Efficiency of water heater 80.1 (216)

(217)m= 87.41 87.13 86.53 85.23 82.99 80.1 80.1 80.1 80.1 84.83 86.69 87.52 (217)

Fuel for water heating, kWh/month (219)m = (64)m x 100 ÷ (217)m

(219)m= 256.44 227.04 240.76 220.05 222.16 206.7 199.5 217.55 216.74 229.2 236 250.25

Total = Sum(219a) = 1...12 2722.4 (219)

Annual totals kWh/year

• Space heating fuel used, main system 1 2892.6
• Space heating fuel used, secondary 463.81
• Water heating fuel used 2722.4
• Electricity for pumps, fans and electric keep-hot: central heating pump: 30 (230c); boiler with a fan-assisted flue 45 (230e)
• Total electricity for the above, kWh/year sum of (230a)…(230g) = 75 (231)
• Electricity for lighting 445.14 (232)

10a. Fuel costs - individual heating systems:

11a. SAP rating - individual heating systems

• Energy cost deflator (Table 12) 0.42 (256)
• Energy cost factor (ECF) [(255) x (256)] ÷ [(4) + 45.0] = 1.16 (257)
• SAP rating (Section 12) 83.84 (258)

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12a. CO2 emissions – Individual heating systems including micro-CHP

13a. Primary Energy

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DER WorkSheet: New dwelling design stage

User Details:

Assessor Name: Demi Beneke Stroma Number: STRO027754

Software Name: Stroma FSAP 2012 Software Version: Version: 1.0.4.18

Property Address: House 1
Address : House 1

1. Overall dwelling dimensions:

Ground floor 50.66 (1a) x 2.38 (2a) = 120.57 (3a)
First floor 50.66 (1b) x 2.68 (2b) = 135.77 (3b)
Total floor area TFA = (1a)+(1b)+(1c)+(1d)+(1e)+.....(1n) 101.32 (4)
Dwelling volume (3a)+(3b)+(3c)+(3d)+(3e)+.....(3n) = 256.34 (5)

2. Ventilation rate:

Number of chimneys 0 x 40 = 0 (6a)
Number of open flues 0 x 20 = 0 (6b)
Number of intermittent fans 3 x 10 = 30 (7a)
Number of passive vents 0 x 10 = 0 (7b)
Number of flueless gas fires 0 x 40 = 0 (7c)

Infiltration due to chimneys, flues and fans = (6a)+(6b)+(7a)+(7b)+(7c) = 30 ÷ (5) = 0.12 (8)

Air permeability value, q50, expressed in cubic metres per hour per square metre of envelope area 5 (17)
If based on air permeability value, then (18) = [(17) ÷ 20]+(8), otherwise (18) = (16) 0.37 (18)
Number of sides sheltered 2 (19)
Shelter factor (20) = 1 - [0.075 x (19)] = 0.85 (20)
Infiltration rate incorporating shelter factor (21) = (18) x (20) = 0.31 (21)

Monthly average wind speed from Table 7 (22)m= 5.1 5 4.9 4.4 4.3 3.8 3.8 3.7 4 4.3 4.5 4.7

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Wind Factor (22a)m = (22)m ÷ 4 (22a)m= 1.27 1.25 1.23 1.1 1.08 0.95 0.95 0.92 1 1.08 1.12 1.18

Adjusted infiltration rate (allowing for shelter and wind speed) = (21a) x (22a)m 0.4 0.39 0.38 0.34 0.34 0.3 0.3 0.29 0.31 0.34 0.35 0.37

Effective air change rate - enter (24a) or (24b) or (24c) or (24d) in box (25) (25)m= 0.58 0.58 0.57 0.56 0.56 0.54 0.54 0.54 0.55 0.56 0.56 0.57 (25)

3. Heat losses and heat loss parameter:

Fabric heat loss, W/K = S (A x U) (26)…(30) + (32) = 50.74 (33)

Heat capacity Cm = S(A x k ) ((28)…(30) + (32) + (32a)…(32e) = 14593.04 (34)

Thermal mass parameter (TMP = Cm ÷ TFA) in kJ/m²K Indicative Value: Medium 250 (35)

Thermal bridges : S (L x Y) calculated using Appendix K 9.88 (36)

Total fabric heat loss (33) + (36) = 60.62 (37)

Ventilation heat loss calculated monthly (38)m= 48.99 48.73 48.47 47.28 47.05 46.01 46.01 45.82 46.41 47.05 47.51 47.98 (38)

Heat transfer coefficient, W/K (39)m= 109.61 109.35 109.09 107.9 107.67 106.63 106.63 106.44 107.03 107.67 108.13 108.6 Average = 107.9 (39)

Heat loss parameter (HLP), W/m²K (40)m= 1.08 1.08 1.08 1.06 1.06 1.05 1.05 1.05 1.06 1.06 1.07 1.07 Average = 1.06 (40)

Number of days in month (Table 1a) (41)m= 31 28 31 30 31 30 31 31 30 31 30 31 (41)

4. Water heating energy requirement: kWh/year:

Assumed occupancy, N 2.75 (42)

Annual average hot water usage in litres per day Vd,average = (25 x N) + 36 99.55 (43)

(44)m= 109.5 105.52 101.54 97.56 93.57 89.59 89.59 93.57 97.56 101.54 105.52 109.5 Total = 1194.55 (44)

(45)m= 162.39 142.02 146.56 127.77 122.6 105.79 98.03 112.5 113.84 132.67 144.82 157.26 Total = 1566.25 (45)

(46)m= 24.36 21.3 21.98 19.17 18.39 15.87 14.71 16.87 17.08 19.9 21.72 23.59 (46)

Storage volume 210 (47); loss factor 2.3 (48); temperature factor 0.54 (49); loss 1.24 (50)

Total heat required for water heating (62)m= 224.15 197.81 208.32 187.54 184.36 165.57 159.8 174.26 173.61 194.43 204.59 219.03 (62)

Output from water heater (annual) 2293.47 (64)

5. Internal gains (Table 5 and 5a) Total internal gains (73)m= 489.91 487.47 471.76 446.45 420.6 395.99 380.24 386.84 400.08 425.61 454.84 476.91 (73)

6. Solar gains: Solar gains in watts (83)m= 94.6 165.58 238.35 315.09 370.97 376.23 359.42 316.52 264.73 186.18 114.12 80.43 (83)

Total gains – internal and solar (84)m= 584.51 653.05 710.1 761.54 791.57 772.22 739.66 703.36 664.81 611.79 568.95 557.35 (84)

7. Mean internal temperature (heating season)

(92)m= 18.65 18.83 19.14 19.55 19.91 20.13 20.17 20.17 20.05 19.61 19.06 18.63 (92)

8. Space heating requirement Total per year 3825.06 (98); Space heating requirement in kWh/m²/year 37.75 (99)

9a. Energy requirements

Space heating fuel used, main system 1 3670.1 (211); Space heating fuel used, secondary 588.47 (215); Water heating fuel used 2707.75 (219)

12a. CO2 emissions – Individual heating systems including micro-CHP

Space heating (main system 1) 792.74 (261)

Space heating (secondary) 11.18 (263)

Water heating 584.87 (264)

Space and water heating 1388.8 (265)

Electricity for pumps, fans and electric keep-hot 38.93 (267)

Electricity for lighting 231.03 (268)

Total CO2 1658.75 (272)

Dwelling CO2 Emission Rate (272) ÷ (4) = 16.37 (273)

EI rating (section 14) 85 (274)

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TER WorkSheet: New dwelling design stage

User Details:

Assessor Name: Demi Beneke Stroma Number: STRO027754

Software Name: Stroma FSAP 2012 Software Version: Version: 1.0.4.18

Property Address: House 1
Address : House 1

1. Overall dwelling dimensions: Total floor area 101.32 (4); Dwelling volume 256.34 (5)

2. Ventilation rate: Number of intermittent fans 4 x 10 = 40 (7a); Infiltration due to chimneys, flues and fans = 40 ÷ (5) = 0.16 (8)

Air permeability value q50 5 (17); (18) = [(17) ÷ 20]+(8) = 0.41 (18); Shelter factor 0.85 (20); (21) = 0.35 (21)

Monthly average wind speed from Table 7 (22)m= 5.1 5 4.9 4.4 4.3 3.8 3.8 3.7 4 4.3 4.5 4.7

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Adjusted infiltration rate = 0.44 0.43 0.42 0.38 0.37 0.33 0.33 0.32 0.35 0.37 0.39 0.41

Effective air change rate (25)m= 0.6 0.59 0.59 0.57 0.57 0.55 0.55 0.55 0.56 0.57 0.58 0.58 (25)

3. Heat losses and heat loss parameter: Floor 50.66 x 0.13 = 6.5858 (28); Walls net 88.9 x 0.18 = 16 (29); Roof 50.66 x 0.13 = 6.59 (30)

Fabric heat loss = 48.14 (33); Thermal bridges 10.94 (36); Total fabric heat loss = 59.07 (37)

4. Water heating energy requirement: Storage volume 150 (47); loss factor 1.7 (48); temperature factor 0.54 (49); loss 0.92 (50)

Output from water heater (annual) 2175.52 (64)

6. Solar gains: Solar gains (83)m= 83.94 146.92 211.49 279.59 329.17 333.83 318.92 280.85 234.9 165.2 101.26 71.37 (83)

Total gains (84)m= 563.07 623.62 672.47 715.27 739 719.05 688.39 656.92 624.21 580.04 545.32 537.51 (84)

8. Space heating requirement Total per year 3950.07 (98); kWh/m²/year 38.99 (99)

Space heating fuel used, main system 1 4224.68 (211); Water heating fuel used 2567.48 (219)

12a. CO2 emissions: Total CO2 1737.06 (272)

TER = 17.14 (273)

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SAP 2012 Overheating Assessment

Calculated by Stroma FSAP 2012 program, produced and printed on 17 June 2019

Property Details: House 1

Dwelling type:

Semi-detached House

Located in:

England

Region:

South England

Cross ventilation possible:

Yes

Number of storeys:

2

Front of dwelling faces:

North East

Overshading:

Average or unknown

Overhangs:

None

Thermal mass parameter:

Indicative Value Medium

Night ventilation:

False

Blinds, curtains, shutters:

None

Ventilation rate during hot weather (ach):

4 ( Windows open half the time)

Overheating Details:

Summer ventilation heat loss coefficient:

338.37 (P1)

Transmission heat loss coefficient:

60.6

Summer heat loss coefficient:

398.99 (P2)

Overhangs:

Solar shading:

Solar gains:

Orientation (calculation for July) Area Flux g_ FF Shading Gains

Internal gains:

Total summer gains

1062.12 1006.98 967.03 (P5)

Summer gain/loss ratio

2.66 2.52 2.42 (P6)

Mean summer external temperature (South England)

15.4 17.3 17.3

Thermal mass temperature increment

0.25 0.25 0.25

Threshold temperature

18.31 20.07 19.97 (P7)

Likelihood of high internal temperature

Not significant Not significant Not significant

Assessment of likelihood of high internal temperature:

Not significant

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