1135 CRAFTSMAN WAY 2018-01-02 MF Import

2004 Washin ton State Nonresltlentlal tner (:ode(:om liance FORn • • • • �70W Washing!on Swia Narnmmenuai Enarpy Coae Ccm, n Forms 1 Rans<a Iday:DCS Envelope - General Requirements 17/1 Insulation Produti samples used for U-factor determinations shatl be produclion line units a representative d units as purchased by 1311.1 InsWllation Requirements: A9 insulation materials ihe consumer or contractor. Ur�abeled glazing and doors shall shall be installed according to the manufacturer's instructions be assigned ihe default U-faCor in Section 2006. to achieve proper densilies,maintain clearances,and maintain �312.2 Solar Fleat Gain Coetficient and Shading undortn R-values. To the maxvnum extent possible, insulalion Coefficient:Sdar HeatGain Coefficient(SHGC), shall be shall e�end over the(u�mmponent area to the iNended R- detertnined, tertified and labeled in accordance vnth the value. National Fenestretion Raling Counal(NFRC) Standard by a 1311.2 RooflCeiling Insulalion:Opemdown a poured loase- certified, independent agency, ticensed by the NFRC. fill insulation may be used in attic spaces where ihe slope d Exception: Shading ccefficients(SC)shall be an lhe ceiling is not more than 3I12 and there is al least thirty acceptable atternate for compliance Hith solar heat inches of clear distance from the top oF the bottom chord of the truss or ceiling joisl to the underside of the sheathing at ihe gain coefficient requiremen5. Shading coeffidents roof ridge.When eave vents are install=d, baffling of lhe vent for glazing shall betaken(rom Chapter 27 of openings sha0 be prwided so as to deflect lhe incoming air Standard RS27 or from the manufacture�'s test dala. above ihe surface of ihe nsulation 1313 Moisture Control Wh=re fiohting fixtures are recessed inlo a suspended or 1319.1 Vapor Retarders:Vapor retarders shatl be instalied on exocsed and ceiung,ihe roof/ceiling assembly shatl he the warm side(�n winter) of ireulation as required by this insulated in a laationother fhan direcUy on lhe suspended secUon ceiLng. Exceptlo�:Vapor retarder installed with not more Exception: Type IC raled recessed IigMing 5utures. than 7!3 of the nominal R•value between it and the Where inslalled in wood 6amirg,faced batt insulaton conditioned spaca shall be face stapled 1317.2 RooflCeiling Assemblies: Roo(lceiling assemblies 1311.3 Wall Insulation:Exterior wall cavities iscJated during �'+here the ventilation space above the insulation is less than (rar.;:r.c:sh�ll er�ialy insulated to the levels of the surrourxiing an average of twelve inches shall be prwided with a vapor walK. Wn.:n:r,s;aiied in v.00d framing,faced batt insulation �etarder. Roof/ceBing assemWies witho�t a vented airspace, shall be face stapled where neither ihe roof d>ck nor the roof structure are made d Above grede exterior irsuWtion shall be protected. sea�msshall provide a conlinuous vapor retarder with taped 1911.4 Floar Insulation: Floorinsulation sha� be installed in Exception: Vapa retartlers need nolbe prwided a pertnanent manner in substantial corrtact with the surfac^ where all o(the insuW6on is insWlled bMween the beirg insulated. Inwlation supporis shall be installed so roo(membrane and the 5ructural rod deck sr:-�r., c r.at rr�_;�than M1venty�ourinches on center. �317.3 WaIIs:Walls separebng conditimed space hom Ins�l�,�:�nsidation ;hall not block lhe airflow through � unconditbnerl space shall be pro�ded with a vapor retarder. founda6on vents. 1311.5 SIaMOn�rade Floor: Slab-oo-grede insUation 1313.4 Floors:Floas separatv�g condifioned space from irutalled insde the foundation wa�shall extend dowrnvard from uncondilioned space shall be provided with a vapor retarder. the top of the slab a minimum distance of Aventy�our inches or 7713.5 CrevA Spacos:A ground cover of siz mil(0.006 irr_h to the top o lhe fooling,whichever is less. Insulation installed thick)black polyethylene or approved equal shall be laid over outside the foundation shall extend downward a minimum d the grand within Qawl spaces.The ground cover shall be hventy-four inch=s a to ihe 6osUine,whichever is grealer. overlapped twelve inches minimum allhejoints aM shall Above gra�ie msulation shall be prolected. extend to the foundaUon wall. Exception:Fa mondithic slabs,the insula6on shall � Exception:The ground cwer may be anitted in extend downwdrd from the lop o(the slab to lhe cravA spaces if the ua�N space has a concrete slab bdtom of the fooling. floor with a mirdmum ihickness of three and one-half 1311.6RadiantFloors(onorbolowgrado�: Slab-orrgrade mches. Insulation shall extend dw+nward(ran the top of the slab a 1314 Air Leakago minunum d�;tance ol lhvty-six inches or downward to the top d 1114.1 Building Envelope:The requiremenu cf this sec6on the(ootin�and horizomal for an aggregate ot not less than shall appty to buildmg elemenis separa6ng conddioned from thirty-six mches. unconddioned spaces. ExlenorjoiMs around windows and If required by lhe building official where sdi conditims door frames, openings beM1veen walls and toundation, betvpen warrant such insulation,the enfire area of a radiant floor shall walLs and rool arc1 wa9 parwls;openirgs at peretretions d be thermaDy isolated frcm the soil. Where a soil gas contrd utility services ihrough walls,fioors,and roofs; and all other system is providad be�av lhe radiarrt floor,which resulls in openings in the building envelope shall be sealed caulked, increased convective Oow belav the radiant floor,lhe redan� gasketed, or weatherstripped to limit av leakage. floor shall be tMrmaOy isolated from thesub•floa grave�layer. 1314.2 Glazing and Doors:Doors and operade glazing i 1312 Glazing and Doors separating conditioned from uncontLlioned space shall be 1J12.1 Standard Proceduro for poterminatlon of Glazing Weatherstnpped. Fixed windows shall be ugM frtting with glass and Door U-Factors: LLfactors fa glazing and doors shall be retained by stops Hith sealant a caulhng all around. detertnined, certified and la6eled in accordance with Standard Excoption:Openings that are requved to be fire RS-31 by a certified independent agency licensed by the resistant National Fenestration Rating Council(NFRC). Compliance 1314.7 Building Assemhlies Used as Ducts or Plenums: shall be based on the Residential or the Nonresidernial Modei Buikl�ng assemdies used as duds or plenums shall be sealed, Size. caulk�, and gasketed to limrt av leakage. / '.�S , .�