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2003 Wa�bin ton State Nonresidential Ener Code Compliance Fortn � • <br /> C • • ' ' � <br /> YOOJ W as�inglon State Nonresi0enlial Energy Co]e Comphantt Forrtis Rensed July 200i <br /> Envelope - General Requirements <br /> 1371 Insulation Produd samples used for U-factor determinations shall be <br /> 1311.1 Installation Re uirements: All insulalion materials Produclion line units or representative d units as purchased by <br /> 9 4ie consumer orcomraclor.UNabeled glazing and doors shali <br /> shall be installed accorJing to the manufacturer's instructions be assigned the defaul[U-faclor in Section 2006. <br /> to achieve properdensities,maintain clearances,and maintain �312.2 Solar Heat Gain Ccefficient and Shading <br /> unrfortn R-values.To the maximum extent possible, insulation Ccefficient:Solar HeaiGain CoeFfcient(SHGC�,shall be <br /> shall ebend over the full wmponenl area to the irrtended R- delermined, certified and labeled in accordance with the <br /> value. National Fenestrafion Ra6n�Council(NFRC)Stardard 6y a <br /> 1311.2 Roof/Ceiling Insulation:Open-down or poured loose- cerlified, independenl agency,licereed by!he NFRC. <br /> fill insWation may be used in attic spaces v�here Ihe slope of Exceptfon: Shading ccefficients(SC)shail be an <br /> lhe ceiling is not more than 3/12 aM there is at least thirty acceptable attemate for compliance with solar heal <br /> inches of cleardistance(rom the top of fhe botlom chord o(the 9ain coeffcient requirements. Shading coetfdents <br /> truss or ceilirg joisl to the underside of the sheaehing at the (or glazing shall be taken from Chapter 27 of <br /> roof ndge.When eave vents are installed, bafFling o(the vent Standard RS27 or from the manufacturers test data. <br /> openings shall be provided so as to deflect the incoming air <br /> abcve the surface of the insula6on. 1313 Moisture Control <br /> Where lighting fixtures are recessed into a suspended or 1�1].1 Vapor Retarders:Vapor retarders shall 6e installed on <br /> exposed gnd ceiling,the rooflceiling assembly shall be the warm side(in winter)of insWation as required by this <br /> insulated in a Iceation ether than directly on the suspended sec6on. <br /> ceiling. Exception:\'apa retarcler installed with not more <br /> Exception: Type IC rated recessed lighting fixtures. lhan 7/3 ot ihe nominal R-value between it and the <br /> Where installed in wood freming,faced batt insula6on conditioned space. <br /> shall be face staped. t3131 RooflCeiling Assemblies:RooPceiling assemblies <br /> 7J11.3 Wall Insulation:Exterior wall cavities isolated during where the venlilation space above lhe insulatbn is less than <br /> framing shall be fully insulated to the iavels of ihe surtounding an average of hvelve inches shall be provided with a vapor <br /> walls.l^ihen installed in w9od framing,faced ba!t insulffiion relarder.Roof/ceiling assembli�H4lhoul a vented airspace, <br /> shall be face staped. where neither ihe roof deck nor the roo(structure are made of <br /> Above grade ezterior insulation shall be protected. e�msshall provide a wntinuois vapw retarderwilh taped <br /> 1711.4 Floor Insuladon: Floor insulation shall be installe� in Exception: Vapa retarders nced not be provided <br /> a pertnanent manner in substantial contact with the surface where all o(the insulation is installed between the <br /> being insulated. Inwlation supporis shatl be installed so roof inembrane and the structural mof deck <br /> spacing is not more than twenty�our inches on center. 1313.3 Walls:Walls separa6ng conclitioned space from <br /> Installed insulation shall not block the air�ow through unconditbned space shall be pro�dr� with a vapor retarder. <br /> foundation vents. <br /> 1311.5 SlalrOnGrado Floor: Slab-on-grade insulation 1313.-0 Floors:Floors separating condifioned space from <br /> installed inade the fourdation wa�shall extend dowrnvard from unconditione� space shall be providal with a vapor relarder. <br /> the top of the slab a minimum distance of�venry�our inches or 1313.5 Crawl Spxes:A ground cever of six mil(0.006 inch <br /> to the top of the footin9,whichever is less. Insulation installed thick)black polyethylene or approved equal shall be laid over <br /> outside the foundation shall extend downward a minimurn of the ground within aawl spar.es.The ground cover shall be <br /> twenry-(our inches or to the frosUine,whichever is grea�er. overlapped hvelve inches m'nimum atthejoirRs and shall <br /> Above grade insulation shall be protected. extend to lhe foundation wa!I. <br /> Excepdon:For monolithic slabs,ihe insulation shall exceptlon:The ground cover may be omittai in <br /> extend downward from the top of Ihe slab to the crawl spaces i(the crawl space has a concrete slab <br /> bottom of the footing. floorwith a mirimum thickness of three and one-hal( <br /> 1311.6RadiantFloors(onorbelowgrade): Slab-on-grade inches. <br /> insulation shall extend downwar�from the top of the slab a 1314 Air Leakage <br /> minimum distance of thirty-six inches or downward to the top of 7314.1 Building Envelopa:The requirements of this section <br /> the footing and horizontal(or an aggregate of not less than shall appty to building elements separatirg conditioned from <br /> ttirty-six inches. unconditioned spaces. E#eriorjoints around windows and <br /> If required hy the building oKr.ial where soil conditions door frames.openings beN+een vrdlls and foundaGon, betvreen <br /> warrant such insulation,the entire area of a radiant tloor shall walls and roof aod wall panels;openirgs at penetreGons of <br /> 6e thermally isolated from the soil. Where a soil gas control utility services through wal!s,Floas,and roofs:and all other <br /> system is provided below Ihe radiant floor,which results in openlrgs in the building envelope sh211 he sealed, caulked, <br /> increased convective flow below the radiantlioor,the rediant gasketed, or weetherstnpped to limit air leakaga <br /> Boor shal bethermally isolated from thesub-floorgravel layer. 1314.2GIsing and Doors:Dows and operable glazing <br /> 1312 Glazing and Doors separating condltioned(mm unconditioned space shall be <br /> 1312.1 Standard Procedure tor Determinatfon of Glazing Weatherstnppecl. Fixed windows shall be GgM fitting with glass <br /> and Door LLFactors: U-factors for glazing and d�ors shall be retained by stops with sealant or caulkng all around. <br /> determ ined,certifed and iabeled in accordance wilh Standard Exceptlon: Openings ihat are required to be fire <br /> RS-37 by a certified independent agency licensed by the resisUnt. <br /> National Feneslration Rating Council(NFRC).Compliance 1314.3 Building Assemblies Used as Ducts or Pienums: <br /> shall be based on the Residential or the Nonresidential Model Building assemdies used as dups or pl=nums shall be sealed, <br /> Size. caulked, and gasketed to limil air leakage. <br /> �b <br />