51

---

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

Date of Test: 10th February 2015 Test File: Plot 51, 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 C, Type C5 Plot 51 Union Road Clapham, London SW4 6JP

639 ( +/- 0.2 %)

2.57

Leakage Areas:

244.6 cm² ( +/- 0.9 %) Canadian EqLA @ 10 Pa or 0.98 cm²/m² Surface Area 128.3 cm² ( +/- 1.4 %) LBL ELA @ 4 Pa or 0.52 cm²/m² Surface Area

Building Leakage Curve:

Air Flow Coefficient (Cenv) = 46.7 ( +/- 2.1 %) Air Leakage Coefficient (CL) = 47.4 ( +/- 2.1 %) Exponent (n) = 0.665 ( +/- 0.006 ) Correlation Coefficient = 0.99976

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:

10 °C 7 °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:

249 m²

2% 2015

Central Extract

900 800 700 600 500 Building Leakage (m³/h)

400 300 200

100 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: 10th February 2015 Test File: Plot 51, Union Road, Clapham Comments Fourth floor flat gas boiler to wet Rads Temp seals to extractor fans Water in all traps DAP 3.0 Data Points: Depressurization Nominal Building Fan Pressure Pressure (Pa) (Pa) -0.5 n/a -64.9 61.3 -60.4 56.6 -55.2 50.4 -49.9 44.2 -45.3 39.1 -40.6 34.0 -35.6 28.6 -30.5 165.3 -25.5 130.4 -0.4 n/a Test 1 Baseline (Pa):

Nominal Flow (m³/h)

Temperature Adjusted Flow (m³/h)

% Error

762 731 689 643 604 562 514 459 406

752 722 680 635 596 555 507 453 401

-0.6 0.1 0.2 0.1 0.3 0.5 0.4 -0.5 -0.8

p01- = -0.5

p01+ = 0.0

p02- = -0.4

p02+ = 0.0

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