21

---

BUILDING LEAKAGE TEST HPD Building Compliance Ltd Cherry Tree House High Street Thorndon, Suffolk IP23 7LX Phone: 01379 678092

Date of Test: 20th April 2015 Test File: Plot F21 Union Road, Clapham

Technician: David Taylor (BINDT Reg. 0276)

Customer:

Building Address:

Durkan Ltd 4 Elstree Gate Elstree Way Borehamwood, Herts WD6 1JD Phone: 020 8616 9700 Fax: 020 8619 9800

Test Results at 50 Pascals: V50: Airflow (m³/h) n50: Air Changes per Hour (1/h) w50: q50: m³/(h*m² Surface Area)

Block A, Third floor, Type A2 Flat F21, Flat 8 Union Road Clapham, London SW4 6JP

419 ( +/- 0.6 %)

2.82

Leakage Areas:

165.9 cm² ( +/- 3.6 %) Canadian EqLA @ 10 Pa or 1.11 cm²/m² Surface Area 88.6 cm² ( +/- 5.7 %) LBL ELA @ 4 Pa or 0.60 cm²/m² Surface Area

Building Leakage Curve:

Air Flow Coefficient (Cenv) = 33.5 ( +/- 8.9 %) Air Leakage Coefficient (CL) = 33.7 ( +/- 8.9 %) Exponent (n) = 0.645 ( +/- 0.023 ) Correlation Coefficient = 0.99556

Test Standard: Type of Test Method: Equipment:

EN 13829 Test Mode: Depressurization B Regulation complied with: ADL1A 2010 Model 3 Minneapolis Blower Door, S/N 11812

Inside Temperature: Outside Temperature: Barometric Pressure: Wind Class: Building Wind Exposure: Type of Heating: Type of Air Conditioning: Type of Ventilation:

18 °C 15 °C 101325 Pa 3 Gentle Breeze Partly Exposed Building Wet Rads

Volume: Surface Area: Floor Area: Uncertainty of Building Dimensions: Year of Construction:

149 m²

2% 2015

Central Extract

600 500 400 Building Leakage (m³/h)

300 200

100 90 80 4

5

6

7 8 9 10

20 30 Building Pressure (Pa)

40

50 60 70 80

BUILDING LEAKAGE TEST Page 2 Date of Test: 20th April 2015 Test File: Plot F21 Union Road, Clapham Comments Third floor flat wet Rads Temp seals to Central Extract registers Water in all traps DAP 3.0 Data Points: Depressurization Nominal Building Fan Pressure Pressure (Pa) (Pa) -0.1 n/a -64.9 28.6 -55.5 155.4 -55.2 156.6 -49.7 136.4 -45.5 122.9 -40.3 106.3 -34.4 91.4 -30.0 76.6 -24.9 60.9 0.1 n/a Test 1 Baseline (Pa):

Nominal Flow (m³/h)

Temperature Adjusted Flow (m³/h)

% Error

514 445 446 415 393 365 337 308 273

510 441 443 412 390 362 335 305 271

2.7 -1.7 -0.9 -1.4 -1.2 -0.8 1.4 1.1 1.2

p01- = -0.2

p01+ = 0.1

p02- = -0.2

p02+ = 0.2

Fan Configuration Ring B Ring C Ring C Ring C Ring C Ring C Ring C Ring C Ring C