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

Date of Test: 24th February 2015 Test File: Plot 57, Union Road, Clapham Customer:

Technician: David Taylor (BINDT Reg. 0276)

Durkan Limited Building Address: 4 Elstree Gate Elstree Way Borehamwood, Hertfordshire WD6 1JD Phone: Fax:

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

Block B, Type B6 Plot 57 Union Road Clapham, London SW4 6JP

470 ( +/- 0.5 %)

2.59

Leakage Areas:

167.7 cm² ( +/- 3.1 %) Canadian EqLA @ 10 Pa or 0.92 cm²/m² Surface Area 84.5 cm² ( +/- 4.9 %) LBL ELA @ 4 Pa or 0.46 cm²/m² Surface Area

Building Leakage Curve:

Air Flow Coefficient (Cenv) = 29.1 ( +/- 7.6 %) Air Leakage Coefficient (CL) = 29.4 ( +/- 7.6 %) Exponent (n) = 0.709 ( +/- 0.020 ) Correlation Coefficient = 0.99733

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:

11 °C 10 °C 101325 Pa 3 Gentle Breeze Partly Exposed Building gas boiler to wet Rads

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

182 m²

2% 2015

Central Extract

700 600 500 400 Building Leakage (m³/h)

300 200

100 90 80 70 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: 24th February 2015 Test File: Plot 57, Union Road, Clapham Comments Fifth floor flat Wet Rads Extract registers sealed Water in all traps DAP 3.0 Data Points: Depressurization Nominal Building Fan Pressure Pressure (Pa) (Pa) 0.1 n/a -64.7 34.7 -59.7 31.5 -54.9 28.5 -49.6 24.8 -44.4 144.9 -41.0 127.7 -34.5 103.7 -29.8 87.9 -24.9 72.0 -0.1 n/a Test 1 Baseline (Pa):

Nominal Flow (m³/h)

Temperature Adjusted Flow (m³/h)

% Error

568 540 513 478 429 401 360 330 298

563 535 508 473 425 398 357 327 295

-0.3 0.4 1.2 1.2 -1.8 -2.7 -1.3 0.6 2.9

p01- = -0.1

p01+ = 0.2

p02- = -0.2

p02+ = 0.0

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