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2018 WSEC ANALYSIS:
<br /> WSEC SECTION R401.3
<br /> P P Y approved A permanent certificate shall be completed b the builder or other a
<br /> and posted on a wall in the space where the furnace is located,a utility room,or an w°" w•��mm.w« o+° w w ,ws�m„ a
<br /> approved location inside the building.When located on an electrical panel,the
<br /> certificate shall not cover or obstruct the visibility of the circuit directory label,service °`"°"s°°`"`-°""` .min•.: °. ° , m
<br /> disconnect label,or other required labels.The certificate shall list the predominant ---- a"m'"•^°•��°^�°x I z
<br /> R-values of insulation installed in or on ceiling/roof,walls,foundation(slab,below- w•e^ ,.=M«a „�,•.,••,++,rr„•,•• _ w
<br /> grade wall,and/or floor)and ducts outside conditioned spaces;U-factors for
<br /> fenestration and the solar heat gain coefficient(SHGC)of fenestration;the results - a
<br /> from any required duct system and building envelope air leakage testing done on the SEr UP
<br /> building;and the results from the whole-house mechanical ventilation system flow
<br /> rate test.
<br /> WSEC SECTION R402.4 ��•b,�m��. -`3
<br /> The building thermal envelope shall be constructed to limit air leakage. Each a„m
<br /> dwelling unit shall be tested and verified as having an air leakage rate of not
<br /> exceeding Q air changes per hour.Testing shall be conducted with a blower door at U
<br /> a pressure of 0.2 inches w.g.(50 Pascals)and per the requirements of section
<br /> R402.4 of the Washington State Residential Energy Code.
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<br /> Air barrier and thermal barrier =^ •+*""_"••"•• ^",m,.a••Oa:,• - N
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<br /> A Continuous air barrier shall be installed in the building envelope.Exterior = _
<br /> thermal envelope contains a continuous air barrier.Breaks orjoints in the air °° �••"-•a���••w-°�" ;,�,„',�; ;;�a;w„m"
<br /> barrier shall be sealed.Air-permeable insulation shall not be used as a sealing a-•^•��m�
<br /> material. �� T.a.,,�z.b,�� - ,•,,,."a.. .°"....,
<br /> Cavity insulation installation ° " �
<br /> All cavities in the thermal envelope shall be filled with insulation.The density of _ `
<br /> the insulation shall be at the manufacturers'product recommendation and said
<br /> density shall be maintained for all volume of each cavity.Batt type insulation will
<br /> show no voids or gaps and maintain an even density for the entire cavity.Batt
<br /> insulation shall be installed in the recommended cavity depth.Where an '_'��aarop"� `�.°"�` .<m °•pa° 9 9 "",,,�„p,11O„�wd",^,„
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<br /> obstruction in the cavity due to services,blocking,bracing or other obstruction �°=�ti:'�z:o��,.,�, .r..re"^n= ws�,°�,�+..° +°^^e^'=^°^°^_^^^• '° ^° s-°
<br /> exists,the batt product will be cut to fit the remaining depth of the cavity.Where
<br /> the batt is cut around obstructions,loose fill insulation shall be placed to fill any - _---_
<br /> surface or concealed voids,and at the manufacturers'specified density.Where
<br /> faced batt is used,the installation tabs must be stapled to the face of the stud. ;°;,°"""a ,,,,
<br /> There shall be no compression to the batt at the edges of the cavity due to inset
<br /> stapling installation tabs.
<br /> Insulation that upon installation readily conforms to available space shall be
<br /> installed filling the entire cavity and within the manufacturers'density + Ern, "vim °„,,. ,„ „"row°�.,a�,��,^^,^.rye.„,,,. "^«M«^ Z
<br /> recommendation.
<br /> Ceiling/attic w - U
<br /> The air barrier in any dropped ceiling/soffit shall be aligned with the insulation s, mw.w.. "_°••� °.° `•�,"'•^ 0�",, z (n z
<br /> and any gaps in the air barrier sealed.Access openings,drop down stair or knee .z_, „."„� ° , �.p,K,a m••°....."„ 0.". w Q
<br /> wall doors to unconditioned attic spaces shall be sealed. The insulation in any
<br /> dropped ceiling/soffit shall be aligned with the air barrier. Batt insulation installed s ••^^ •�^ "_�:•��a °° "" ° �•® D�,s„ 0 >- J
<br /> in attic roof assemblies may be compressed at exterior wall lines to allow for a.,, a, - ..�,...._ w J 0-
<br /> required attic ventilation. "a,...,.° °➢ ®n LU Q
<br /> Corners and headers shall be insulated and the junction of the foundation and "••i1=max°°T_^="^° �•m P=^a•=^��••"°�" ^" wPe��• �j Q
<br /> sill plate shall be sealed.The junction of the top plate and top of exterior walls
<br /> shall be sealed.Exterior thermal envelope insulation for framed walls shall be
<br /> installed in substantial contact and continuous alignment with the air barrier.
<br /> Knee walls shall be sealed.
<br /> Windows.skyliahts and doors
<br /> The space between window/doorjambs and framing and skylights and framing
<br /> Shall be Sealed. HEATING/COOLING SYSTEM SHALL BE A MULTI-HEAD DUCTLESS SPLIT HEAT PUMP SYSTEM.MINIMUM COOLING EFFICIENCY SHALL
<br /> Rom•Olsts MECHANICAL SV57EMa: BE 14.0 SEER OR BETTER,AS TESTED PER AHRI STANDARD 210240,MINIMUM HEATING EFFICIENCY SHALL BE 10.0 HSPF AS TESTED
<br /> Rim joists shall be insulated and include the air barrier. PER AHRI STANDARD 210240.(PER WSEC TABLE C402.2(2)8 WSEC CREDIT 3.e).SYSTEM SHALL BE CAPABLE OF HEATING AT
<br /> HOUSE VENTILATION
<br /> L TI N WHOLE OUTDOOR TEMPERATURES OF 5•F OR LOWER.
<br /> Floors(including abo lied to
<br /> i and cantilevered floors) HOUSE VENTILATION SYSTEM SYSTEM SIZING SHALL BE INDICATED IN WSEC-R CALCULATIONS ABOVE,OR AS DETERMINDED BY MECHANICAL ENGINEER.
<br /> Insulation shall be installed to maintain permanent contact with underside of SHALL BE DESIGWBUILD BY
<br /> subfloor decking.The air barrier shall be installed at any exposed edge of OTHERS,THE DESIGN OF WHICH 1A INDOOR DUCTLESS SPLIT HEAT PUMP SYSTEM C V
<br /> SHALL BE PROVIDED FOR REVIEW Q .2 J
<br /> insulation. AS A DEFERRED SUBMITTAL O 11
<br /> Crawl space walls 16 OUTDOOR CONDENSING UNIT. C =
<br /> Where provided in lieu of floor insulation,insulation shall be permanently r"1t
<br /> attached to the crawlspace walls.Exposed earth in unvented crawl spaces shall WALL WINDOW'Q' '�/J W be covered with a Class I vapor retarder with overlapping joints taped. WAA WINDOW'H' v) 060 B9 SGD
<br /> Shafts,penetrations 115 SF 22 311P C C,
<br /> Duct shafts,utility penetrations,and flue shafts opening to exterior or WALL WINDOW'B' O > Q
<br /> unconditioned space shall be sealed. _ ^ Wit
<br /> Su sD SLDR W U
<br /> Narrow cavities ------ AIR BARRIER B THERMAL ENVELOPE iB 123 SF
<br /> T C)Batts in narrow cavities shall be cut to fit and installed to the correct density AIR BARRIER 8 THERMAL ENVELOPE AT FLOOR Z O LL
<br /> ®
<br /> without any voids or gaps or compression.Narrow cavities shall be filled by - z : Q
<br /> insulation that on installation readily conforms to the available cavity space. !/ AIR BARRIER 8 THERMAL ENVELOPE AT CEILINGIROOF \ U (L
<br /> Garaae separation WINDOWS' ROOF Ref.10-7: UJ Air sealing shall be provided between the garage and conditioned spaces. so 50 SLDR U=0.020
<br /> y
<br /> Recessed lighting NOTES: 708 SF
<br /> 1. Wall areas indicated are"net"measurements and do not include FLOOR Ref.10-2. "�' WINDOW'B'
<br /> Recessed light fixtures installed in the building thermal envelope shall be air door or window openings. F=0.360 )FLOOR Ref.10-3: 60 50 SLDR 1 C _
<br /> tight,IC-rated. Z Assembly for party walls at units are not described in WSEC U=0.025rJ
<br /> Plumbing and wiring appendix A;calculated R-value is assumed as follows: 86 SF
<br /> t Batt insulation shall be cut neatly to fit around wiring and plumbing in exterior INTR AIR FILM: 0.17 622 SF
<br /> En LL
<br /> walls. There shall be no voids or gaps or compression where cut to fit. GWB: OAS
<br /> a Insulation that on installation readily conforms to available space shall extend R75 BATT INSUL wALL
<br /> w/2x4 @ 16'OC 12.70 27 SF
<br /> behind piping and wiring. SHEATHING 0.94 WALL WALL
<br /> o Shower/tub on exterior wall UNVENT.AIR GAP: 0.91
<br /> SHEATHING: 0.94 499 SF \� lA2 WINDOW'CC' WALL
<br /> E Exterior walls adjacent to showers and tubs shall be insulated and the air barrier 4T-1"x 10'-8"= W2
<br /> R15 GATT INSUL ^� I = 494 SF so 3a Plc - 47'1"x 8'
<br /> installed separating them from the showers and tubs. w/2x4 @ 16 OC: 12.70 7A 380 SF d
<br /> Electricallphone box on exterior walls GWB: 0.45 v -
<br /> The air barrier shall be installed behind electrical or communication boxes or air INTR.AIR FILM:_ 0.17 `y
<br /> sealed boxes shall be installed. o
<br /> TOTAL R VAL, 29.43(U=0.034)
<br /> o HVAC register Its WALL WINDOW'CC' _
<br /> HVAC register boots that penetrate building thermal envelope shall be sealed to Plc
<br /> 9' P g P WSEC SECTION R402.1 13asP ; �[ a
<br /> the subfloor or drywall.
<br /> INSULATION&FENESTRATION REQUIREMENTS WALL = -__ WALL 0
<br /> BY COMPONENT: zSF z9ssF S
<br /> WSEC SECTION R403.7.1 Fenestration max.U-factor: 0.27 for operable 2 JOB NO.:
<br /> All detached one-and two-familydwellings and multiple single-family dwellings windows,0.24 for WINDOW'EE' 1A 22205
<br /> 9 P 9 Y 9 WINDOW TF' 4 30 SLDR 1A ' -
<br /> townhouses u to three stories in height above grade Ian using electric zonal fixed windows nu(townhouses) P 9 9 P 9 sa sLDR c PLOT DATE
<br /> heating as the primary heat source shall install an inverter-driven ductless mini-split WALL
<br /> Roof/Ceiling R-Value: R-49,adv.framing WALL 1/172024222.49 PM
<br /> heat pump in the largest zone in the dwelling. Building permit drawings shall g g 32 SF
<br /> specify the heating equipment type and location of the heating system. (raised heel truss) _
<br /> Floor R-Value R-38 WALL WALL L DATE: 06/0e/2023
<br /> E W1
<br /> 12 SIF I] 47 SF WALL ;,SCALE: As Indicated
<br /> o Wood-frame wall R-Value: WINDOW'D' w1
<br /> Exterior: R-21 WALL 29 s°wad W 89 SF W�L WALL 6P 50 SLOB f DRAWN: MIS
<br /> 19 SF
<br /> _ Party walls: (2)R-15 21 SF WINDOW'M' 37 SF 85 SF CHCKD: TM
<br /> Notes: 2P 60 PIC GENERAL SHEETS
<br /> See sheet A20 for typical weather barrier installation details Slab R-value&Depth R-10(perimeter& "-SHEET NO.:
<br /> See sheet A21 for typical air barrier installation details under entire slab) UNIT C - 1 ST F L R. UNIT C - 2 N D F L R. UNIT C - 3 R D F L R. A0 3C
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