20120164 Duct Leak Affid 08152012Duct Leakage Affidavit
Permit #: '?—O /ZG 416
House address or lot number:
City: �� Zip: � to s G
Cond. Floor Area (fe): %_f �. Source (circle one): ans Estimated Measured
❑ Duct tightness testing is not required for this residence per ekceptions listed at the end of this document
Air Handler in conditioned space? ❑ yes no Air Handler present during test? [lyes ❑ no
Circle Test Method: .Leakage to Outside To eaka
Maximum duct leakage:
Post Construction, total duct leakage: (floor area x.08) = CFM @25 Pa
Post Construction, leakage to outdoors: (floor area x.06) = CFM@25 Pa
Rough -In, total duct leakage with air handler installed: (floor area'x .06) -TCFM @25 Pa
Rough -ln, total duct leakage with air handler not installed: (floor area x.04) = CFM @25 Pa
Test Result: ' /i l CFM @25Pa
r � .
Ring (circle one If applicable): Upen I ✓
Duct Tester Location: �( Pressure Tap Location:�N
C4 ecoFes s1 �o �l
I certify that these duct leakage rates arr.e,waccurate and determined using standard duct testing protocol.
CompahyName: �f4 f�Wl@n%tl Agr"S Technician:
Technician Signature:
Date: �� Phone Number:
Washington State Energy Code reference:
503.10.3 Sealing. All ducts, air handlers, filter bores, and building cavities used as ducts shall be seated. Joints and seams shall comply
With Section M1601.3 of the International Residential Code or 603.9 of the International Mechanical Code. Duct tightness testi0g shall be
conducted to verify that the ducts are sealed. A signed affidavit documenting the test results shall be provided to the jurisdiction having
authority by the testing agent. When required by the building official, the test shall be conducted In the presence of department staff.
Exceptions: 1. Duct tightness test is not required if the air handler and all ducts are located within conditioned space.
2. Duct testing is not required if the furnace is a nondirect vent type combustion appliance Installed In an unconditioned space.
A maximum of sic feet of connected ductwork in the unconditioned space is allowed. All additional supply and return ducts
shall be within the conditioned space. Ducts outside the conditioned space shall be sealed with a mastic type duct sealant and
insulated on the extedor with R -8 insulation for above grade ducts and R -5 water resistant insulation when within a slab or
earth.