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2007 W 'n lon State Nunresfdential Ener Code Com �'^nca Fortn <br /> C � • ' - ' <br /> 2(107 W�altlrqlm Stale NonrosWenWl Enerpy CaOe CmW�rc�Fmro RevisoE June YW71W <br /> Envelope - General Requfrements <br /> 1311 Insulalbn Product sampies used fa llfactor delertninatiore shall be <br /> 1311.1 Irutallatbn Requirements: AI(ns�ia6m mffierials Produc0on ine urdts or representative d urits as puchased by <br /> shal be installed accordng to lhe manufactirefs InstrucUore �e coreuma or coAractor.Uriabeled glazing and doas shall <br /> to xhieve properdensities,maintain clearances,and malnfain 6e assignedlhedel.,Wt llfada h Seclion 200& <br /> unifortn R-values.?�the max'mum exlent posside,Ins�ation 13122 Solar Flaat Gain CoefMdeM and Shadlny <br /> shall eMend ove�•Y ie ful oomponent ar�to the Irtendeil R- CoeftkleM:Sdar Heal Gan Coefficient(SHGC),shall be <br /> value. determned,certified and labeled In aa7rdance with the <br /> 1311.2 RooUCeiling InsWation:Open•down arpoured loose- National Fenastration Rating Council(NFRC)Sandard by a <br /> fil ins�da5on may be used in al�c spaces where the siope d ��fied,irdependent agency,icerued by lhe NFRC. <br /> the ceiling is not rtwre than 3112 and there is at least tNrty Exception: Sha�ing coeficienls(SC)shall be an <br /> inches of cleardistance hom the top d the bdtom chord of the ��p�ble altemate for compliance with solar heat <br /> truss or ceiling joist ro the underside ot the sheathirg at the 9ain coefficienl requremeNs. 3�ad�ng coeffideMs <br /> rooi ridge.When eave vents are installed,b�flng o(the vent for glazing shall be taken from Chapter 27 of <br /> openings shal be provided so as to deflecl the(ncarning air Standard RS27 or Gom lhe manu(act�rers lest data <br /> above the surface o(the�sulation 1313 Molsture CoMrd <br /> Where GgMing fixtires are recessed into a suspended or 1313.1 Vapor Ralarders:Vapor retarders shall be instaled on <br /> exposed grid caiing,the rod/caling assembty shal be ihe warm slde(n wiMer)d ireulation as required by tf4s <br /> insulated in a location other than drectly on the suspended sec6on. <br /> ceiing. Exception:Vapor retarder Irutailed with nd mae <br /> Exceptlon: Type IC rated recessed IigMing fixture;. than 1/3 d the naninal R-value belvsei it and lhe <br /> Where i�stalled in twod 6aming,faced battinsulation conditioned spaco. <br /> shall be face staqed. 1313.2 Roof/Ceiling Asserobl�es:Roo9ceiling assemblies <br /> 1311.3 WaI1lnsWatlon:Exteria wall cavities fsdaled during W���e venliWtion space sbove the irsulation is less tlian <br /> Gaming shall be fuly insuiated lo the levels ofthe surrounding an average of lwdve inches shail be prwided with a vapor <br /> wal5.When installed in v.00d Bamng,faced batt ins�ation retarder.Rod/ceiing assamdies withoul a vented airspace, <br /> shall be face staped. where neither the roof dedc nor the rod strucWre are made d <br /> Abo�a grade mcterior ireulation shall be proteded W�d,shali provide a continuous vapar retarder wdh taped <br /> seams. <br /> 1311.4 Fbor Insulatlon: FloarinsuWtion shaA be instailed fn Exception:Vapa r�taNers need notbe prwided <br /> a pertnanent manner in substaMial coMact wilh the surface ��e all of the fnsulation is insfalied belwem the <br /> being ins�ated. Insulation supports shall be Irutailed so roof inembrene and the strucWral rod deck <br /> spacing(s rot mae than hventyfoiu inches m center. <br /> Installed irsulation sh�i nd dodc the aifiowthrough 1313.3 Walls:Walls separating conditimed space from <br /> foundation vents. unconditioned space shail be proHded with a vapa retarder. <br /> 1311.5 SIa6-0n�rede Fioa: Slab-0rrgade ins�ation 7313.4 Floors:Floors separating conditimed space from <br /> irstalled fnsde the foundation wal shall e#md dowrnvard from ��ndtioned space shall be provided wilh a vapor retarder. <br /> the lop of the slab a mnimum dstance d hventydour inches or 1313.5 Gawl Spaces:A ground cover d six mil(0.006 inch <br /> to the Wp d the footing,v,fiichever is less. I�uulatim irutalled thick)btack polyettrytene or approved equal shali be laid over <br /> outside the foundaUon shall extend downward a mirvmum d the grourd xithin aawl spaces.The ground cover shall be <br /> lwenty-four inches or to the frostline,v.fiichever is greater. overiapped hvelve fnches minimum at thejoirts and shall <br /> Above gade ireulatbn shall be proteded. extend lo the foundation wall. <br /> Exceptlon:Fa mondithic slabs,the fnsula6on shall Exceptlon:The gound cover may be omitted in <br /> extend davnvrarcl fram the lop d Cie slab lo the crawl spaces if the aavA space has a concrete slab <br /> bUtom of the footing. tloorwilh a mirimum thickn�s of thrce and ore•hai( <br /> 1317.6RadfantFloors(onwbelowgrade): Slab•orograde inches. <br /> insulation shall eMend davnward trom the top of the slab a 1374 Alr Leakage <br /> minimum dishance of lhHy-sx inches or downward to the top d 1314.1 Building Envelo{w:The requrements of lhis sectlon <br /> the footing and haizonlal fa an aggregate d not less than shall apply lo build�g elements separatirg condtioned firom <br /> thirty-six inches. unconditioned spaces.Exteriorjoints aroind windw+s and <br /> If required by the building official wfieresdl cond'Aiais doorframes,openirgs between walis andfoindation,belneen <br /> warrant such insWation,the entire area of a radiantfioor shatl walls and rod and wal panels;openings at peneVations d <br /> be thermaly isolated from the sdl. Where a soB gas contrd uti�ity services through wails,floors,and roofs;and all dher <br /> system is proHded 6elav the ra�SaM(bor,which resWts in opeiings in the buildng envdope shall be sealed �Iked, <br /> increased comective flow beiav the radiantfloor,the radant gasketed,or weffihersUipped to IimR a'r leakage. <br /> floor shail be thermaly isolated Gom the sub-floa gravd layer. 1314.2 Glaz(ng and Doors:Doors and operade glazing <br /> 1312 Glazing and Doors separating cond6oned irom uncondtbned space shall be <br /> 1312.1 Standard Procedure for Determinatlon of Glazing weatherstripped.Flxed wirdows shall be tigk tilting with glass <br /> and Door U-Factors:LLfadors for glazing and doors shall be retained by stops with sealant a caullang all around <br /> determined,certified and labeled in accordance with Standard Exceptlon: Operings thatare requied to be Fire <br /> RS-31 by a certified independenl agency licensed by(he resistar�t <br /> National Feneslratim Rating Council(NFRC).Compliance �3�4.3 Building/�semblies Used as Ducts or Plenums: <br /> shal be based on the Residential or the Norvesideraiai Modd Building assemdies used as duds or plenums shall be s�led, <br /> Size. caulked,and�asketed to limd aF leakage. <br /> �D� <br />