HomeMy WebLinkAboutPermit File bld20210652 4118 Brant Circle (3)Energy Program
Residential Building A ors Leakage
(Nmuer Door) Test G°3esuks
Permit #:
House address or lot number:
!..
City, ZIP
2 ��
Cond. Floor Area (sf):
!
Age of house:
2,;
Source (circle one):
Plans Estimated Measured
Results shall be reported as Air Changes per Hour at 50 Pascals (ACH50) and shall be calculated as follows:
Where:
ACH50 = (CFM50 x 60)/ Volume
CFM50 = Blower door fan flow at 50 Pascal pressure difference
Volume = Conditioned Floor Area of the housing unit x ceiling height
Flower Door Test Result: 1. v ¢!) ACH50
Z,4 CFM@50Pa
Ring circle one if applicable):
Open A C
Blower Door Fan location:
Weather Conditions:
I certify that these blower door results are accurate and determined using standard industry protocol:
Company Name:
'Uu✓fib. V rs lo- z- ' \ ' ',v, e' LLC
Technician:
►,c zt, (-e ' ,(—
Technician Signature:
Date:
Z. 3
Phone Number:
'dN L l 'Z 3 4
2028 WSEC 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 ACH50. Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g. (50 Pascals).
For this test only, the volume of the home shall be the conditioned floor area on ftz (m2) multiplied by 6.5 feet (2.6 m).
Where required by the code official, testing shall be conducted by an approved third party. A written
report of the results of 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 sealing (see Table R402.4.1.1), operable windows and
doors manufactured by small business shall be permitted to be sealed off at the frame prior to the test.
During testing:
1. Exterior windows and doors, fireplace and stove doors shall be closed, but not sealed, beyond the intended
weatherstripping or other infiltration control measures;
2. Dampers including exhaust, intake, makeup air, backdraft and flue shall be closed, but not sealed beyond
intended infiltration control measures;
3. Interior doors, if installed at the time of the test, shall be open. Access hatches to conditioned crawl spaces
and conditioned attics shall be open;
4. Exterior openings for continuous ventilation systems and heat recovery ventilators shall be closed, sealed;
5. Heating and cooling systems, if installed at the time of the test, shall be turned off; and
6. Supply and return registers, if installed at the time of the test, shall be fully open.