2003 74TH ST SE 2017-04-10 - Laserfiche WebLink

r 'WASHINGTON [ SCE UNIVERSITY EXTENSION ENERGY PROGRAM ,,Support Residential Building Air Leakage Test (Blower Door Test) Results Permit#: rZ- te: House address or lot number: S number:-.7 �� City: it Zip: b - � Cond. Floor Area (ft2):20gt-c- Age of house: Source (circle one): Plans Estimated easure Results shall be reported as Air Changes per Hour at 50 Pascals (ACH50) and shall be calculated as follows: ACH50 = (CFM50 x 60)/Volume Where: CFM50 = Blower door fan flow at 50 Pascal pressure difference Volume = Conditioned Floor Area of the housing unit x ceiling height Blower Door Test Result: LI: ACH50 Sec CFM@50Pa Ring (circle one if applicable): Open Blower Door Fan Location: „�,;� Weather Conditions: C I certify that these blower door results are accurate and determined using standard industry protocol. Company Name: Hawk Environmental Services, Inc Technician: Ben Tressel Technician Signature: -- Dater- Z A L Phone Number: 206-501-5880 2012 Washington State Energy Code reference: R402.4.1.2 Testing.The building or dwelling unit shall be tested and verified as having an air leakage rate of not exceeding 5 air changes per hour in Climate Zones I and 2.and 3 5 air changes per hour in Climate Zones 3 through 8. Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g.(50 Pascals).Where required by the code official.testing shall be conducted by an approved third party.A written report of the results 0i-the test shall be signed by the party conducting the test and provided to the code official.Testing shall be performed at any time after creation of all penetrations of the building thermal envelope. Once visual inspection has confirmed the presence of a gasket(see Section 502.4).operable windows and doors manufactured by small business shall be permitted to be sealed off at the frame prior to the test. 3