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1994 Washington State NonresidontislEnergy Code CoMplianua Form <br />Envelope - General Requirements <br />1311 insulation <br />1311.1 Installation Requirements: AM kwneaben massnals shag be <br />mstOW according o the manufactuters mstructons it achieve proper <br />d"suess, mos"n clevances. and mmrftm uMarm R-values. To the <br />masahum news Possible, nsulabon shag extend Ow the full component <br />wait to IM eeendod R-mire. <br />1311.2 RoogCaiing Insulation: Open -bows w poured kose-fill <br />krwlebon may be "ad in stbt Wipwas whae the slope of the ceding IS <br />not may* man 3112 and there a at Inat Wily inches of clow datem s <br />tram the op of the boom chord of the buss w cerbg pet o V. <br />unanoe of tha sAeetnkng r one roof rage. W Min cave vents we <br />nstal*d. DeIMg of the vsm oPrwga shag be Prowad so Is to deflect <br />he incomrg air above the turtatS of the nsuabon. <br />W Mrs hgh&V failures am recessed lido ■ suspended or expand Nino <br />ceoxnp, ae roof/caeng seem* shag be insuWed in a racism Other morn <br />rready an the Suspended cis". <br />Exception: Type IC rated recessed kghlng fixtures. <br />W has instated in wood bwring. faced bin Insulation shall be face <br />stapled. <br />1311.3 Wall Isulabon: Exterior wall MAISS Isolated dump framing <br />Shelf be fully msuWd to the Mows of die surrounding wens. Wharf <br />mstelled in woad framing, faced belt insulation shag be face stapled. <br />Above graft svteror msuleton shal be protected. <br />1311.4 Floor insulation: Flow msulaben shall be nstald in a <br />Permanent manner in Substantial contact with the surface Deng nsuWd. <br />Insuhhon supports shall be indigo so spacing a not more than twemy- <br />four inches m cm.ter. Installed msulsbon shall not black the rrtraw <br />through founoamr, v nts, <br />1311.b SlabOn-Grade Floor: Sbbbn-Gina Insulation nsWled inside <br />the found,roon oral she I extend downward from ins top of the slab a <br />mmvmum datence If twenty-four inches or to the top of the footing, <br />whichever a less. Insulation Installed outsds Inc foundnon shall extend <br />downward a mininnllln of twenty-four nches or o the Irostkns, whohever <br />is greater Above grade Insulation shoo be protected <br />Exception: For mondMc slabs, the msulston shall extend <br />downward from the lop of the slab to the bosom of the lowing. <br />1311.6 Radiant Floors (on or below grade): Slabortgma nsuiaton <br />shall extend downward from the Ip of tlw slab a nnmenum distance of <br />thtrty-six ncmS Or downward to the top of the footing and hr¢arnal for an <br />aggregate of not loss then airy -sr inches. <br />If r^quvmd by the bulking dficu; where sal conditions warrant such <br />nsu aban the antra aree Of a rdsm flow shall be thermally soured from <br />thesal Where a soil gas control system a provided below the relent <br />flow, witch results in increased convective flow wow the roam floor, <br />the radiant flow shall be thermally mooted from the sub -flow gravel low <br />1312 Glazing and Doors <br />1312.1 Standen Procedure for Determination of Glaring and Door <br />U-Factnn,: ll.!uwm far glazing and doors shall be dmermned, certified <br />and lobeletl ,. ccordance with Standard RS-31 by a eddied <br />IndePm.dent agency licensed by the National Fenestraboi, Rang Coonc l <br />(NFRC). ConPlsnce shag be based on Model Size AA or Bb Product <br />samples used far U-factor datermmabons shall hoe broduction live tads or <br />repre6entebYe of units as PurohessV by the consumer or contradPr. <br />Unhbaled guizrg and doom shag be assapnsd en default U-fatlor m <br />Section 200S. <br />1312.2 Solar Neat Oak, Coefficient and Shading Co*fficlant: Sher <br />Hear Gan Cosffcrm (SNGC), shoo be determined, certified and t*behe <br />In accordance wort the Naomi Fenestradm Ralag Camt1(NFRC) <br />Standard by a cerdled, kndepw do agency. licensed by are NFRC. <br />Exception: Shading cwMickroe (SC) shelf be an acceprye <br />almmre for campihnce with solar host gain coorreiem <br />requirements. Sharing coefficients fw glocng west be hken from <br />Chapter 27 a( Standard RS-27 or from the mmulactwers last <br />data. <br />1313 Moisture Control <br />1313.1 Vapor Ratavdem: Vapor reterd*M shall be retatd an on warm <br />sloe (n sister) of nsuleton a requksd by one section. <br />EXC*PbM: Vapor raterar Metalled with not mom then /r3 of the <br />nonfatal R-vshn beteeen it and the carn000r ed Spw. <br />1313.2 A"VCNing Assemblies: Rod/ceaeg gsson*bs where Nita <br />verda*.lon Spec* above Ilta ms111abon n less intent an average of Won <br />inches shag be Provided wen a vol or retarder. Rod/camp assemblies <br />wwthae a vented sespsce, where realer the rod deck nor the roof <br />atruchr, am mot* of wood. snag provide a continuous vapor retarder <br />wain toped sums. <br />Exception: Vapor retereem need nM be Provided where all of <br />the nsulstion Is nstaNd bowed the rod membrane and the <br />stfuctural rod deck. <br />1313.3 Wage: W als saparatnq condbork d space train unconds onsd <br />space shag be provided with a wpm rWrder. <br />1313.4 Floors: Floors sepanong conddomd space from uncmdeoned <br />space shall be provided with a vapor ra wdw. <br />1311.9 Craw; Spaces: A ground cover Of am mil (0,006 inch thick) black <br />PoNrhylsne or approved equal shel be hid am dta ground worth crawl <br />spaces. The ground cover shall or, ovwuppd toes" inches I am um It <br />the path and Shull extend to the fourdaton wall. <br />Exception: The ground cover may be omitted in tiger spaces <br />If the crawl spat* has a concrete slab Poor won a minimum <br />thickness of tar** and one -hag inches. <br />1314 Air Leakage <br />1314.1 Building Envelope: The foprenam, of ma notion shoo Sooty <br />to bunking elements s*parateig conditioned from uncondooned speed. <br />Exterir, pima *round windows and doer frames. oponngs between wags <br />and foundation. between waft and roof and wall panels: opwwgs at <br />Penetrations of utlny services through walk, flows, and roots: and at <br />Ott' oPenngs in the baking airman shall be sawed, coursed, <br />gaskeMd, Of weeth*mtnppd to lint tar leelu ge. <br />1314.2 Gluing and Doors: Doom and operable glaring separating <br />:ondiboned from unconditioned SPK* shall be w*alMmtrpped. Feet <br />wnndows shag be tight filling with ghss retained by slop w4h "giant or <br />caulking all around. <br />Exception: Openings dug are required to be fee resatanl. <br />1310.3 Building Assemblies Used IS Ducts or Pldums: Buaang <br />assemblies used as ducts or plenums shall be seehd. uuoied. and <br />gaskand to kind air leakage. <br />