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2001 Washin tor,State Nonresidential Ener Code Compliance Fortn <br /> ' C • • ' ' <br /> 200t Wasningion Smte Nonresaanul EnergyGotlo Comp�mnco Fom�s RovueE Junn 2002 KJh1 <br /> Envelope - General Requirements <br /> 1311 Insulation Produ�1 samples used fw Udaclw determinatioris shall be <br /> 1311.1 Installation Requirements: All insulatlor�malerials production 6ne units or representative d units as pumhased by <br /> shall be ins�alled accordng to lhe manufacturer's insWcfions �e consume�orcoMractor. Unla6eled glazing and doors shall <br /> to achieve properdensities,maintain clearances,and maintain be assigned the detault LLfactor in Section 2006. <br /> unifortn R-values.To the maximum extent possible.insWation 13722 Solar Heat Gain Coefficient and Shading <br /> shall e�¢end over the fuu wm�+onent area to the irrtended R- CceKcient:Sdar Heat Gain Coeffcient(SHGC),sha:l be <br /> value. detertnined,certified and labeled in accordance�vith the <br /> 1311.2 RooflCeiling Insulation:Open-blown or poured lorse- National Fenestration Rating Council (NFRC)Standard try a <br /> fiu insulation may be used in zltic spaces where Ihe slope of certified,independent agency, licensed by the NFRC. <br /> the ceiling is nol more than 3/72 and lhere is at least thirN Exception: Shading cce(ficients(SC)shall be an <br /> inches of cleardistance(rom the top cf the tottem chord of the acceptable ahernale(or compliance with solar heat <br /> truss or ceiling joist to the underside of the shealhing at the gain coefficient requrements. Shading coeffdents <br /> roof ndge.When eave vents are installed,ba(fling of the vent forglazing shall be taken from Chapter 27 of <br /> openings sha0 be prwided so as to de0ecl the incoming air Standard RS27 or from the manufacturers test data. <br /> above the suAace of ihe insulation. 1313 Moisture CoMrol <br /> Where IigMing fixWres are recessed into a suspended or 1313.1 Vapor Retarders:Vapor retarders shall be installed on <br /> exposed grid caling,lhe roc�/ceiling assembly sha� be Uie vrartn side(in wint�r)of insulation as required by lhis <br /> insulated in a Iceation other ihan directly on tne suspended sec[on <br /> ceiling. Exception:Vapa retarder installed wifh not more <br /> Exception: Type IC rated recessed lic�htinq fixtures. Ihan 1/3 of lhe nomina' R-value between it and the <br /> Where installed in wood freming,faced batt insulation conditioned space. <br /> shall be face staped. 1313.2 RootlCeilingAssemblies:Roof/caling assemblies <br /> 1311.3 Wali Insulation:Exterirx vrall caoities isdated during W��e tlie ventilaGon space above the insulation is less than <br /> 6aming shall be fully insulated io the levels of the surtounding an�veraae of hvelve inches shaJl be provided wilh a vapor <br /> walls. When installed in v.00d ir�ing,faced ball ins�7ation retarder. RooViceiling assemblies without a vented airspace, <br /> shall be face staqetl. wnere neith�r the rwf deck nor Ihe roof strucWre are made d <br /> Above grade^xterior insulation shall be prolected. Wcod,shall provide a cononuous vapor retarderwith taped <br /> SP2lf1S. <br /> 1311.4 Floor Insulation: Flowinsulation shatl be installed in Exception: Vapor retarders need not be prwided <br /> a pertnanent manner in s��bstanlial conlact with the sudace where all of lhe insulation is installed between the <br /> being ins�aled, Insulation;upports shall be installed so roo(membrane and the 5ruclurai roof deck <br /> spacing is rwt more than lwenty�four inches on center. <br /> Installed insulation shatl not dock the air�ow through 1313.3 Walls:Walls separatiny conditioned space from <br /> foundation vents. unconditbned space shall be proud�wilh a vapor retarder. <br /> 1311.5 Slab-On�rade Floor. Slab-on-grade ins�Aation 1313.4 Floors:Floas separaling conditioned space from <br /> installed insde the foundation wau shall extmd dowmvard from uncondi6oned space shall he provided with a vapor retarder. <br /> the lop of lhe slab a minimum distance of twenry-four inches a 1313.5 Crewl Spaces:A ground covg of six mil(0.006 inch <br /> to Ih?top o�the footinc�,«hichever is less. Insulation installed thick)black polyethylene or approved equal shall be laid over <br /> oulside;he foundation shall extend downward a minimum of the ground vrithin aavl spaces.The ground cover shall be <br /> twenry-four inches w to ihe frostline,whichevPr is greater. overlapped hvelve inches minimum at thejoin!s and shall <br /> Above cyade insulatior.shall be protected. exlend to lhe toundation wall. <br /> Exception:Fw monolithic slabs,the insulation shall Exception:The ground cover may be omitted in <br /> extend da.vnv2rd from the top of lhe slab to the cra�d spaces if the crawi space has a concrete slab <br /> bottom of Ihe footing. floor with a minimum thickness of three and one-half <br /> 1311.6RadiantFloors(onorbelowgrade�: Slab-on-g2de inches. <br /> insulation shall extend da+:nv2rd frcm the top of the slab a 1314 Air Leakage <br /> min'vnum distance of lhirty-six inches or downward to Ihe top of �314.1 Building EnvHope:The requirements of this sectlon <br /> the foo0ng and horizorr,al for an aggregate of not less than shall apply lo building elements separafiag conditioned from <br /> thirty-six inches. unconditioned spaces. Ezteriorjoints around windavs and <br /> If required by Ihe building oKcial where sdl conditions door frames,openinqs GeM1vec� walls and founda6on, between <br /> warrant such insulation,the en6re area of a radiant floor shall walls and roof and wall panels;openirgs at peneVations of <br /> ta th�rmaliy isolated fron,the sul. bYhere a soii ga,contrcl ulility services throuyh�valls,Iloas,and roofs;and all olher <br /> system is pro�ided belw�the radiant floor,which resulls in openirx3s in fhe building envelope shall be sealed, caulked, <br /> increased conoective Oow lr_�lan�ihe radiant floor,!h�rartiant ga;keted,or weathersMpped lo limit air I�akage. <br /> (locr sh�ll be thertnatly isolated from the sub-flocr gravd layer. 1314.2 31a:ing and Doars:Docrs and opereble glazmo <br /> 1312 Glaziny and Dows separating condfionecl from uncon[Liioned space shall be <br /> 1312.1 Standard Procedure for Determinalion oF Glazing weathcrstnpped. Fixe.d wintlows shall he tigM fAting�vith yia�s <br /> and Door U-Factors: U�factors fcr gla<irg and d�ors shali be �etained by stops wiUi sealant or caulkng all around. <br /> determined,certified anA Iabeled in accordance wllh Standard Exception: Opervngs that are required to be fire <br /> RS-31 by a certified independent agency licensed by the resistant. <br /> National Fenestration Rating Council(NFRC). Comoliance 1314.3 Building Assemblies Used as Ducts or?lenums�. <br /> shall bc hased on!Fe Resid�ntial nr the Nonresidentia!hlodel g;�ilding assemlXies used a,duas orplenums shall be caaieJ, <br /> Si�a caul6.cd, ana aesheied to I��mrt an leak.aqe. <br /> ��1 G <br />