3232 RUCKER AVE 2016-01-01 MF Import

( Dutt Tadlna f.ode Lanauaae 503.30.3 SaNinp: All ducts, air handlers, filter boxes, and building cavitles used as ducts shall be seale.. loints and seams shall oomply with Sectio� MI601.3 of the Intertwtional Resldential Code or SecUan 603.9 of uie Intemational Mechanical Code. Duct tlghtr�ess testin9 shall be conducted to `�e.ri�Y that the duds are sealed. A signed aRidavit documer�tlng the Dest rewlts shall be provided to the 7urisdktion having authoriry by the testln9 agent When required by tfie bullding dfidal, the test shall be oonducted in the preserxe of department staff. Duct tlghtn�s shall be veriRed by elther of the folbwin9: 1. Post-construction test: Leakage to outdoors stiall be less than or equal to 6 cfm per 100 square feet of conditloned floor area or a Uotal leakage less than or equal to 8 dm per 100 square feE# of conditloned floor area when tested at a preswre differentlal of 0.1 indxs w.g. (25 Pascals) avoss the entlre system, Induding the manufacturers air handler endowre• All register boots shall be Wped or otlierwise sea�ed during the test. 2. Rough-in test: Total leakage shall be less than or equal to 6 dm per 100 square feet of oonditlor�ed floor area when test� at a pressure differential of 0.1 Inches w.g• (25 Pascals) aaoss the rou9hed-in systern, InduQirg the manufacturer's alr handler endowre. All regiseer boots sha�� be taped or otherwise sealed during the test. if the afr handler is not installed at the tlme of the test, total leakage shall be less than or equal to 4 cfrn per 100 �uare feet of oondidoned floor area. EXCEPTIONS: 1. Duct tlghtr�ess test Is not requlred if the air handler and all ducts are lomted within conditloned spaoe. 2. Dud tlghtness test is not required if the fumace is a non-direct vent type combustlon applianoe installed In an w,�nditloned space. A maximum of six feet of connected ductwalc in the uncorditlor�ed spaae is allowed. All addidonal wpply and retum ducts shall be within the mndidor�ed space. Ducts outside the conditloned space shall be sealed with a mastic type duct sealant and inwlated an tfie exterior with R-8 Inwlatlon for above grade ducts and R-5 water resis[ant insulatlon when within a slab or earth. 502.4.5 Builditq Air Leakaqe Tnstiny: Building envelope air leakage control shall be consfdered aoceptable when tested to have an air leakage less than 0.00030 Spedfic Leakage Area (SLA) when tested with a blov+er door at a preswre of 50 Pascals (0.2 inch w.g.). TesUng shall oaur at arry tlme after rough in and aRer instal�atlon of penetratlons of the building envelope, irxlud!ng penetratio�s for utilitles, plumdng, electrical, vendia!ion, and combustlon applianoes and sealing thereof. When required by the building ofticial, the test sha!! b= oonducted �� the presence of department staff. The blower door test results shall be recorded on the certlficate required in Sectfon 105.4. EXCEP'fIONS: 1. Additions less than 750 square 2. Orxe viwal inspection has oon the pr�ence of a gasket (see Section 502.4), operaWe windo�+�s and doors manufactured by small business shall be permitted to be sealed off at the frame prior to the test. Spedfic Leakage Area (SLA) shall be calculated as follows: SLA =(CFM50 x 0.055)/(CFA x 144) Where: CFM50 = Blower door fan flow at 50 rascal pressure differerxe CFA = Conditloned Floor Area of tfie housing uNt During testing: . Exterior windows and doors, fireplace and stove doors shall be dos�.�d, but not sealed. . Dampers shall be dosed, but not sealed; irxluding exh�vst, intake, makeup air, badc draft, and flue dampers; . Interior doors co�necting conditioned spaces shall be op��n; awess hatd�es to oondidoned aawl spaces and condidoned attics shall be open; doors conrxntin9 to uncariltloried spaces sha�l be dosed but not sealed; . Exterior openings for contlnuous operatlon ventiladon systems and heat recwery ventilators shall be do�ed and sealed; . Heating and 000ling system(s) shall be tumed off; . HVAC ducts supply and retum registc�rs shall not be sealed. Page 7 of 9