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TABLE R402:4.'1.1
<br />. AIR BARRIER AND INSULi1TlON INSTALLATION I
<br />compommt
<br />'
<br />tRiTER1A'
<br />Air barrier andthermalbarrier*
<br />A continuous alrbardershallbelestalled In the building envelope. Exterior thermal envelope contains a continuousair
<br />bawler. Breaks or Joints in the air .barrar shall'be seated. Air-permeabte1nsulation shall not be used as a sealing material.
<br />Cavity Insulation installation.
<br />Ailcavitles Inthethermat envelope shall be with insulation. The density ofthe.insulation shall.be at -the manufacturers'
<br />product recommendation and said density shall.bemaintalned for all volumrofeach cavity. Batt type insulation will show no
<br />Ids or gaps and lnaintalnan even density for the eptire cavity. Batftnsulallon shai! be Installed in the recommended cavity
<br />depth. Where an obstruction in the cavity due to services, blocking, "bracing or other obstruction exists, the batt'product will
<br />be cut to fit the remaining depth of the cavity. Where the batt is cutaraund obstructions, loose fill insulation shall be platen ;
<br />'
<br />to fill any surface or concealed volds.andat ttiamanufacturers'specified density. Where fated batt is userlAhe'Installation
<br />tabs..mustbe stapled to the'face of the stud. There shxitbe no compresston.to the 6att at.the edges of the cavity due to inset
<br />stapiing installation tabs.
<br />Insulation that upon Installation readilyconforms to'avaltable space shall be Installed filling the entire cavity and within the
<br />manufacturi density recommendation.
<br />ceiling/attic
<br />The air barrier in any dropped ceiling/soffit shaft be atlgned with the Insulation and any.gaps fro the all barriersealed. Access
<br />openings, drop down stair or knee wall doors:to unconditioned attic spares shali be sealed: Batt Insulation installed-rn attic
<br />roof assemblies maybe compressed at exteriorwa6 Mesta allow for required attic ventilation. '
<br />Walls
<br />Corners and headers shall be insulatedandthe junction of the foundation and sill plate snail besealed. Thelunctlon.of the
<br />top -plate and. atextertorwaits shall beseated.:ExterWt''thermatenvelopeinsulationforframedwalls shall be Insultedin
<br />substantial contact and continuous atipment with the air'barrier. Knee wags shall be seated.
<br />Windows, skylights 4nddoors .
<br />space between-w1hdow/doori and andframing shall be sealed.
<br />Rijniolsts
<br />iimjoists shall be Insulated and includethe alrbarrier.
<br />floors (including above -garage and
<br />Insulation shall be installed'tamaintain permanent contact with.underside'ofsubfloor decking,The•airbarriershali.bo
<br />cantilevered'fic ois) '
<br />insulted at any exposed edge of insulation.
<br />Crawl space walls
<br />Whereprovided In lieu of floor insulation4!, Fasulation shall be pemaaeritty-attached toahecrawlspace wells, Exposed earth
<br />inunventedcrawl spacesshalibecoveredwithaClmlvapor.retarder:with.overlappinglolntstaped. ,
<br />*Insulation o/crawl space walls Is not' Prescriptively allowed A71 UA.Aitematlye method is'required
<br />Shafts„penstratfons
<br />Duct shafts utility penetrations, and flue shafts opening to exterior or unconditioned spaceshali be seated.
<br />�
<br />e
<br />0 R403.1.1 Programmable Thermostats for Forced kit Furnaces
<br />'-
<br />Where the primary heating system Is a -forced -air furnace, at least one thermostat per. dwelling
<br />0, g40 Meebaccat Ventilation
<br />i
<br />be capable of controlling heating and cooling system a a daily schedule to
<br />unit ri
<br />A mechanical ventilation system is required to be installed in accordance with the
<br />Y q
<br />i'
<br />maintain differenttem erature set, ants at different times of. the day. The thermostat shalt
<br />" p Y
<br />Washington State amendments to the IRcarrdjar iMC aria ASHRAE standard Bz.zsoio: }
<br />hno:/faoos.tea.wasovJWACidefaultaso0diaii$1-SO"
<br />-
<br />ai€ow for, at a minimum, a 5-2 programmable schedule (weekdays/weekends) and beCapabie
<br />----"��
<br />of providing at least two programmable setback periods per day.
<br />L� g404.1 Ughting Equipment -
<br />hi -
<br />. A minimum permanently 3 fled"lam in i httn fixtures shallbe h
<br />m n mum of ?5 percent _of permane t y nsta ps i g g
<br />D 9403.1.2 Heat Pump Supplementary Neat ,
<br />efficacy -lamps.. 1
<br />;.
<br />Unitary air cooled heat pumps shall include controls that minimize supplemental heat usage
<br />-- i
<br />during startup, set-up, and defrost conditions. See R403.1.2 for control and set-up
<br />HIGH-EFFICACYLWPS. Compact' fluorescent lamps, T-8 or smaller diameter linear
<br />i
<br />requirements.
<br />fluorescent tamps, or lamps with a minimum efficacy of:
<br />i 1
<br />1. 60 lumens per watt for lamps -over 40wattr.
<br />! 2. 50lumeni perwatt for lamps over 1S watts tr 40 watts; and
<br />D R403.2.1 Duct Insulation
<br />3. '. 40lumens perwattfortamps 1S watts or less.
<br />Ducts in attics shall be Insulated to a minimum of R-8.
<br />Exception: Ducts or portions thereof located'compietely"inside the building thermal envelope.
<br />0 R409.2 Additional Energy c encyRequirements
<br />.
<br />Ducts located In crawl spaces (vented or unvented) do not qualify for this exception.
<br />Each dwelling unit in one andtwo-family dwegings and townhouses, as defined -in Section 101.2• ' • . ,'
<br />of the international Residential Code shall comply with sufficient options from Table R406.2.so
<br />❑ R403.2.2 Sealing and1resting
<br />as to achieve the following minimum number of credits:
<br />Ducts; air handlers, and filter boxes shalt be seated. Joints and seams shall comply with either
<br />1. Small Awelling Unit: 0<5 points
<br />i
<br />the International Mechanical Code orMternationai.Residential Code, as applicable. Ducts shall
<br />Dwelling units lessthan MO squirefeet inconditioited floor area with less than
<br />be leak tested In accordance with.WSU RS-33, using the maximum duct leakage rates specified.
<br />300 square feet of fenestration area. Additions that are less than 750 square
<br />feet of heated floor area to any size existing building:
<br />i W33 ouctTestrngstandards: 2. Medium Dwelling Unit: 1.5 points
<br />L i (} ' /wjgn;maywui6ed new revyu- p3 29 1- All dwelling units that are not included In #1-or #1
<br />w n 000 re feet of condition ea
<br />N- Prescriptive I Checklist for 2012 Washington State Energy Code
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<br />3. Carge ®welling Unit: 2 5.potnts
<br />of d r wal s floors orceit g displace. renvelopei g q
<br />•D A403 2.3 Building Cavities' Dwelling units exceeding 5 square conditioned floor area"
<br />-�*-•• �- Installation acts in exterior 1 fl in s shalt not die la required
<br />COMPONENT
<br />' CRRIiRt/l'
<br />Narrow cavities
<br />Batts in narrow ravitlesshail be cut to -fit and installed to the wrrectdensity without any voidsor'gapsor compression.
<br />Narrow cavities shall be filled by Insulation that on installation readily conforms to theavaitable cavity space. '
<br />Garageseparation
<br />Airsealing.shall be provided between the garage and.conditioned spaces.
<br />Recessed lighting
<br />Recessed light fixturesdnstalled in the building thermal envelope shall be airtight, ICTated, and sealed to the drywall.
<br />Plumbing and wiring
<br />Batt insulation shall becutneatlytofitaroundwiringandplumbinginexterlorwalis.Thereshallbenovoidsorgapsor
<br />Compression where.cutto fit. insulation that on installation readliy'conforms to available space shall extend behind piping
<br />and wiring,
<br />Shower/tub on exterior -wall
<br />Exterior walls adjacent to showers and tubs shall beinsulatedand the air barrier installed separating them from the showers
<br />and tubs,
<br />Eleadcal/phonebox-on exterior wails
<br />The air barrier shall be installed behind electricaltir oommunicatlon boxes or air sealed boxes shall be Installed. -
<br />IivACregister boots
<br />register boots thatillenetrate b-ull.,ding-thermatenvelope shall be seated to the sullfloor or drywall.
<br />Fireplace
<br />An.air barrier shall be installed on fireplace walls. Fireplaces sha4havo gasketed'doors. .
<br />a. inaddnion, inspectb:l of bawallsahall be in aaxvdance cold: tlleprov!sfont ofxG4011.
<br />Insulation. Table R406.2:i p /iwww enerav wsu edo/tMcuments/1'abfe a06 2 Eneran Credits 2012 wSEG ndf -
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<br />13 R403.4.2 Not Water Pipe insulation
<br />Insulation for hot water pipe 'shait have a minimum thermal. resistance of R-4. An SBCC,
<br />interpretation states that insulation canbe discontinuous where passing through framing
<br />members or where necessary to pass another pipe in a stud space-:
<br />D R403.4.3 Electric Water Heater insulation
<br />. Allelectric water heaters in unheated spaces or on concrete floors shalt be placed on an
<br />Incompressible, insulated surface with a minimum thermal resistance of R-Ill: ;
<br />Proscriptive 'Cheddtstfor the 2012 Wash#rigton,State.EnergirCode 13
<br />14 p ive Checkltst for the2012Washington Stateknergy Code .
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<br />The following prescriptive checklist rites 2012 Washington State = - - --- _-::. <__ gto to Coda WSEC items r . a , .
<br />that a to most . . {.
<br />D R3A3111:Insutation Markers ! ' � , "l
<br />• .. pPiY t rest ... «. » •. - . I� R402:2.1 Ceilings witlt.Attic Spates T°:°`a,.�',.••- � �..�'.
<br />cHon projects. This checklist is not a Substitu Hate m intermediate Framing
<br />dentist neat constru •.
<br />to for The thickness of blown -in t l~I Table 402.►.1 Foot �
<br />g 'h: i
<br />the energy t sun n or roof/ceiling insulation ��% �_," • ! :..'•-*• - t
<br />rgy ode itself: nor is It a Ilse of corasprehensive energy code requtrements..To obtain a �' tnt. {intermediate framing} denotes standard framing 1fi inches an center with headers
<br />[t-38'shail be deemed to satisfy e
<br />copy of the energy code, go to., www.eneray.wsu.edu (fiberglass or cellulose) shalt be written inches ('mm) on `;t; ' ` , . insui ted w i requirement for R 49 wherever the fait height
<br />a tth.a min mum of R-10lnsuiation. iit 5trne�dvem
<br />'. r every 0 r extends ,x. • .. i `i i i
<br />e markers that are installed at least one for cry 3 0 square ' 1 of uncompressed R-38 insulations d over i }
<br />13 R103.2 feet (28 m21throughout the attic space, the wall top piate at the eaves.
<br />Include details SANDWICH NEADr:
<br />!• .' 1.
<br />In construction documents regarding insulation materials and their R-values; i�'R303.2.1 Protection of Ex sed Foun ai
<br />! D' R402 L 1:1 loose Ftll Insulation in Attic 1
<br />po d ion insulation '
<br />• - •, fenestration U-factors; area -weighted U-factor calculations; mechanical system design critEria; above " !';.• � �
<br />mechanical an grade and 6 below grade . L+Ot1 E 2X FSEA�K j
<br />' vATH RtG101N5GtknON.' .Spaces
<br />d service water heatingsystemand equipment types, sites and effldenetes; 1
<br />i i W^g f !
<br />• Insulation applied to•the exterior of basement waits, is 3ANaMci•iECsti>:TwEeN ! O en-biown.or oared loose flit in may eatwee�,
<br />p A i'
<br />• • • - equipment and systems controls,•. duct seating, duct' p[pe insulation and Location; and air t .
<br />Tnuxs. � crawlspace wails and the perimeter ofslab-on-gradefioors = ' ! be used Fnatticspaces where the siopeaf the
<br />sealing details. , R4a22.iteningswkhAttksFaces i
<br />shall have a rigid, opaque and weather -resistant protective i feet to 12 and there is
<br />i D Ri03.3'.1 covering to prevent the degradatlon ofthe lnsulaiton's !" '
<br />.4xMEAt7ER / : ceiling is notmorethan3 e t (youcaa-reducetelt7nglnsutadonR-value to381fyau j
<br />Approved Drawings on Site i, 7 IN'6x WALL' i ` at least.30 inches•of clear distance from the'top !have R-38 extending Pa the crier or.wall tine.
<br />set of construction docament ' the performance. of the bottom chord "of the truss or Ceiling joist
<br />PLATE
<br />. - .. _ ..
<br />thermal rman OOUBLE2dc L ,
<br />One documents'so re shalt' be retained by the code.officiaP l he other YOv'fy A
<br />tshall -be returned to the a.ppiicant, kept at site of work and shall be open to inspectlon
<br />i' l
<br />1 i to the underside oftbe sheathing at the roof ridge..
<br />Y ode off
<br />dol or a duty authorizedrepresentative.j type
<br />Se
<br />b the c ui .a i ❑ R401.3 Certificate' iR303 i.3lnsutation Markers ; o eN® i . D R402.2.3 Eave Baffle
<br />A permanent certificate shalt be corn lnsularion markerr»sraued in attic. I i
<br />• ❑ R104.2.1 Waif insulation inspection . � ple4ed and posted' on � , � � 'Far air permeabte.insutations in vented attics, a baffle shah
<br />:Make sure the marker is applicable to '� YANp(iV�t(OR OriDR} 1 .Fo air p► rmeali cent to soffit and rave vents.i a j ; • ; t - - or within three feet of the electrical distribution panel by the type of i»;ufatio»insta!!ed , J , . The building official, span notification, shaft make a wall insulation ins ectionin addition to . p the or registered design professional, The �Ifiberglass, cellulose etc.). i
<br />g g p _ 4xHEAOER. ! i
<br />• •, those.inspectIonsrequired in Section R109 of the International Residential Code: This f •, - i : '
<br />certificate shall be completed b the builder.or registered design I 4' cress Hatches and Doors t
<br />Y g gn professional. The certificate D R402.2 A
<br />- -. • inspection shalt be made after all wall.and cavity Insulation is -in plate and prior to cover. � must list the ever feat � • i 21t NAIt:ER' -
<br />gy features of the structure.' \}
<br />HEADER HNGEl2 Accessdoorsfromconditionedspacestcrunconditioned.
<br />e51 n (e.g:, attics and crawl spaces} shalt be weather i CJ R302 2 f tfB 1t44UALtdEADER spaces t 0 g Certifkat nt =6 T Per h d SIZES TO j
<br />Design Conditions e: D ! I strtppedandinsulatedtoa'levelequtvaienttothe ! i. The heating or cooling -outdoor design temperatures shalt be selected from the (, fZONt LOADING CDNRrt $
<br />WSE ndi 2%2npnarmAt90Ao ar Insulation u ding surf '.
<br />~�`^•. ' nsul on the^ rroun aces.
<br />le 40211 Foot d Stab - - :
<br />,. R303 Heir � I '
<br />CAppe x htta•/IwwwenerevwsuedulDocuments72g1
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<br />. CettiRca
<br />1 tnsulatibn '
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<br />The Insulation( ;
<br />D Tab .. .•_..._:;:;:�_ _..._, __.__....__...._._....- •: fit ,
<br />442Z,3 Save Baffle
<br />�aaflteat roveveriL Minimum 1" "
<br />-Value! ! 1 unobstructed airspace required.'
<br />type, manufacturer and R-value R-10 continuous insulation Is required under t'
<br />installers shall provide a certification listing the t I f tt11r000 ...... ,, �� i - • i
<br />heat lab o floors. .e R46.2.9.1,I I COttNECr T
<br />of inwlation'ina°ta8ed in each e}ement of the building thermal'envelope . Forbtown ar sprayed heated s n grade f s Se
<br />• thickness, settled thickness settled R- - t
<br />itEADFA O Insulation (fiberglass and cellulose} the initial installed thkk IWA t r GOewEGroR i
<br />value, Installed density, coverage area and number of bags installed shall be listed on the D Table 402.1.1 Footnote "k". Ceilin 1' •(FOKAWANC1iV 'AMdili) }}
<br />I i •
<br />! i t
<br />certification• `For sprayed polyurethane foam (SPF) Insulation,, the installed thickness of the R-Value g _ 1
<br />�, 1�, 1 u,m 1 )j f. --. ---� TabTe4ti2.1.iFootnote"k"IntermedtateFramtng
<br />areas covered and R-value of Fnstaited thickness shall be listed on 'the certification. The For single rafter or joist -vaulted i i
<br />Insulation installer 1 u led ceiiings, the 1NT"cootisrequire R•IOinsutptedheaders thesdadrawings show vprtaas ways to athteye thisrequiremenL p
<br />shall sign, date and post the certificationin a conspieuous.location on the job insulat[on ma be reduced to R-38. '
<br />site.. Y t 1
<br />• .. , - - ,,M -..., Yak- •i ,
<br />oraesldenNalNewConstructlon: oobtote"d'Sla RValue jR4tt2z4AteessHatthesa
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<br />Insulation Certificate f i I I rid Doors • I Table llyIns.if b,'lnsulptedemwlspaceaccess,Thesame
<br />. • . _ ,. • • rtficate4,2o5 0 ndt � R-10Jalty insulated slab forheated'slabwn•grade floors. � � � -
<br />- httoa/www.en ravwsS,igdu/Do- menu!(nsutatton%20Ce i 4mefhddapplies taattic-access hatches.
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<br />' Prescriptive checklist for the 2012 Washington state Energy code.
<br />Prescriptive Checklist for the 2012 Was State Energy. Code 2
<br />c fate En e 3 Prescriptive Checklist he gt Energy ode
<br />i Prescr#ptiveChe ktistforthe2012'WashingtonS era Cod , } scriptiv fort 2012Washirr onState'Ener C 4 1
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<br />.2 7 Floors -.. 7 Floors Exception i
<br />DR402.2.8 Basement Watts-
<br />F! x . - - -
<br />oor insulation shalt be installed •to Substantial contact with thexurface bete Instil d i A4o2.2,a n� - - g ate Is not required in enclosed floor/ceiling. shall extend is i
<br />Below grade exteriorwail insulation used on the exterior (cold) side I Baseme twat
<br />maintain permanent contact with the assemblies containing ducts where tali Rva[ue insulation Is installed betweenthe duct and'the from the top of the below -grade wall to the top of the footing and shall be approved for below- Recommended.watiassembl s
<br />~'� y j � •.I
<br />underside of the subfloor decking. exterior surface. grade use. Above shai) , e protected. insulation used an'the interior:(warm)' a t t
<br />R>13 baK applied ovscR-S foam
<br />! side of -the wall shall-extertd from the: top of the below -grade wail to the below -grade floor.level
<br />Insulation supports shall be installed so t
<br />spacing is no more than 24 inches on ii 1
<br />.and shall include R-5 rigid board providing a thermal break between the.contrete waft and the
<br />^_ - Ductwork inside I
<br />• Hier. Foundation vents shall be.placed ' , ' slab.'. . ) �
<br />tlti 41 `:f li '� �'
<br />so that the'to of the vent is below fir V{ #i f t' I I� conditioned space '
<br />p t' I ail ri, i i ! i j Rim Insulated and. i I s '`•'�
<br />lower surface of the floor Insulation. I seated to sameleveis
<br />as above grade walls
<br />tarinsulabo 0 uous t V
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<br />. s S R402 2 7 Floor Exception �R402.2.7 pours xy.r, j
<br />..... I er 'nit-1 co»tin , �� �s. •..�.. t }
<br />Floor lnsutatton
<br />floori»sulation Installed with Contact to the underside of the is I n Contact with
<br />.. - When.foundatlonvents are not placedso � .garage ceiling
<br />floor decking. Note the inset stapled twine. i
<br />• - - ' that the top of the vent is below the
<br />lion, a permanently attached baffle shall be installed at an j
<br />I E t
<br />Power surface of the fluor insula
<br />of 30 from 3 d flow b 1 y '.angle hot zontai; to inert air ow a ow the lower surface of the floorinsulafion.
<br />WALL FRAMING
<br />rector!»sv S continuous 5 $ 1
<br />Floors Exception i
<br />p f substantial contact 1 I d 1 i71 assembly.
<br />i.
<br />. VENTCLOStl1tE R4ce2�k>» or uan�t on with 'nsulare rro kwr ee o assem
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<br />i ' � to lotion R= t! i_
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<br />! . • : • $Q' It ishnper fve that the r1m joist be caulked and sealed to minkirize-air Infiltration, ^
<br />i
<br />MUD SILL
<br />I SILL SEAL AND �/ . ' PERMANENT BAFFLE
<br />• .' CAPILLAK7BREAK i i i j
<br />STEM WALL
<br />Donarinstaltpdporretarderslnbelow gradewvdils j � � •�
<br />, , ' .. - I __...,_�_ _,..,---------* --<•-.�...,..-..,� �4 � i - _�....... _...__. I . � 2012 international Residential Code I _....__.,...._ i •
<br />M01MRE SARRiER i
<br />(6 MiL'BLACK POL`rVHYLENE } R-21 cavity allowed but.not.recommended due to 1 - R702.7 VaporY i '
<br />retarders Class 1 or ii vapor retarders '
<br />potential moisture problems ? are required on the inteciorside of frame wails in
<br />Ciimate'2ones, S, b 7, 8 and Marine 4. i j Exceptions: a 3
<br />i 1. Basement walls,
<br />- A402,2.7Floors Exception L i T. 2. Below grade. portion ofanywall.
<br />.. iBaffl am tfo a /0 tsh t iii t 3 rIts I .. ...
<br />' ' , . • - I: ounddtlof v/nisi vent m a s o - � 1 }
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<br />e some opplfca ' n 1s.n eded for is ung fro - he m d a � . '
<br />• � 1f � n e tocorion.' .__� ._ .. ' i - freeztngwii: damagethe
<br />materials. ,
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<br />Prescrl 7 1
<br />Prescriptive Checklist for the 2032 Washington State Energy Code Prescriptive Checklist for 20i2. Washington State Code b J
<br />e e 012 n e 7 Prescriptive checklist for the 2012 Washin n state EnergyCode i
<br />i Prescrt tin Ch cklistforthe-2 Washington State.Ener
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