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2013, 10-23 Permit: BLD-2013-2095 Duct Leakage Affidavit 'WASHINGTON STATE UNIVERSITY S �� � � � r t EXiEh,>,?��v E'`�t>?Gl' ?G.�L RA' s I Duct Leakage Affidavit Permit#: House address or lot number City: ( (p ( 2 Z- ! We iI i}'l Zip: Cond. Floor Area(ft2): a-70 Source(circle one): Plans Estima4/ Measured Duct tightness testing is not required for this residence per exceptions listed at the end of this form. Yes No Air Handler in conditioned space? Yes No Air Handler present during test? Yes No Circle Test Method: Leakage to Outside Total Leakage Maximum duct leakage: Post Construction,total duct leakage: (floor area x.08)=a 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)= I S(Q CFM@25 Pa Rough-In,total ductt leakage with air handler not installed: (floor area x.04)= CFM© 5 Pa Test Result: I S 7 CFM@25Pa Ring (circle one if applicable): Open Mid Low Duct Tester Location: A;r t ' kPressure Tap Location: S Q ‘111-1,wA SL,r, AD t/ I certify that these duct leakage rates are accurate and determined using standard duct testing protocol. Company Name: Home Energy Audit Tech Technician: Lyle Brown Technician Signature: I.-die'growin, Date: 1O/.13/2()13 Phone Number. 509 280 0381 Washington State Energy Code refenance: 503.10.3 Sealing.All ducts,air handlers,filter boxes,and building cavities used as ducts shall be sealed.Joints and seams shall comply with Section M1601.3 of the International Residential Code or 603.9 of the International Mechanical Code.Dud tightness testing 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 nondired vent type combustion appliance installed in an unconditioned space.A maximum of six feet of connected ductwork in the unconditioned space is allowed.AU 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 exterior with R-8 insulation for above grade ducts and R-5 water resistant insulation when within a slab or earth.