20120151 Duct Leakage Affid 06262012Duct Leakage Affidavit
Permit #: 2—L' % C �jS��%��I, r�/j/�'/f j�
House address or lot number: J t& & V r u.t d br b E
City: /L Zip: V J 1
Cond. Floor Area (fe): 10L Source (circle one): .ean l Estimated Measured
❑ Duct tightness testing is not required for this residence per exceptions listed at the end of this document
Air Handler In conditioned space? ❑ yes B no
Circle Test Method: .Leakage to Outside
Air Handler present during test? [RIas ❑ no
al Leaka
Maxlmum 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 handier installed: (floor area x.0.6) _ _CFM @25 Pa
Rough -I n, total duct leakage wif tf—air –aand1er nor"Walled: (floor areax .04Y - eFM@25-Pa -- -
Test Result: QAt CFM @25Pa
- Rino (circle one if applicable): Open 1% 3
I b p b�� �� SA4 ID r 44
Duct Tester Location: � � 1 Pressure Tap Location:
1 certify that these ductleakage rates are accurate and determined using standard duct testing protocol.
CompanvName: �l S tv'�j J'J I�fc(ji Technician: -�\C , /} t-44&w
Technician Signature:
Date: ( o /9 /a Phone Number:
Washington State Energy Code reference:
503.10.3 Sealing. All duds, air handlers, filter boxes, and building cavities used as ducts shall he sealed. Joinls and seams shall comply
with Section W601.3 of the Intematonal Residential Code or 603.9 of the International Mechanical Code. Dud tightness testing shall be
conducted to vedfy that the ducts are sealed. A signed affidavit documenting the test results shall be provlded 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 thq furnace Is a nondtrect vent type combustion appliance Installed in an unconditioned space.
A maximum of six feet of connected ductwork In the unconditioned space is allowed. All additional supply and returd ducts
shall be within the conditioned space. Ducts outside the conditioned space shall be sealed with a m'astto type duct sealant and
insulated on the exterior with R -8 insulation for above grade ducts and R -5 water resistant insulation when vdthin a slab or
earth.