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2018 WSEC ANALYSIS:
<br /> WSEC SECTION R401.3
<br /> A permanent certificate shall be completed by the builder or other approved party
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<br /> and posted on a wall in the space where the furnace is located,a utility room,or an w°,=="= .z.=.="",w°°==°+° 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
<br /> disconnect label,or other required labels.The certificate shall list the predominant °_"*°"°°°•"E.°""" • cow=«•=„.-•�. «°.__°°
<br /> R-values of insulation installed in or on ceiling/roof,walls,foundation(slab,below-
<br /> grade wall,and/or floor)and ducts outside conditioned spaces;U-factors for w,"„„,",a,"",,, — "^„°"""„•,„ '°
<br /> fenestration and the solar heat gain coefficient(SHGC)of fenestration;the results
<br /> from any required duct system and building envelope air leakage testing done on the
<br /> building;and the results from the whole-house mechanical ventilation system flow
<br /> rate lest. ,
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<br /> WSEC SECTION R402.4 _ "-"� „•^
<br /> The building thermal envelope shall be constructed to limit air leakage. Each ",.o`.::� „,„,"„„„°,°„°°,,,... "°"'"""`""°""" o=a
<br /> dwelling unit shall be tested and verified as having an air leakage rate of not 7 71 7
<br /> exceeding @ air changes per hour.Testing shall be conducted with a blower door at
<br /> a pressure of 0.2 inches w.g.(50 Pascals)and per the requirements of section J""uo°' u.
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<br /> R402.4 of the Washington State Residential Energy Code.
<br /> Afr barrier and thermal barrier `;,"�u; - -
<br /> A continuous air barrier shall be installed in the building envelope.Exterior "°° "�"'+"• """"'" /
<br /> thermal envelope contains a continuous air barrier.Breaks or joints in the air
<br /> barrier shall be sealed.Air-permeable insulation shall not be used as a sealing °° °^°•"°°••°••"^'"' ^°'"^°^^^•^^• =f"
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<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 tl°°i4njPp M'"' R.NNon S°M°Je
<br /> density shall be maintained for all volume of each cavity.Batt type insulation will
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<br /> show no voids or gaps and maintain an even density for the entire cavity.Batt °°""°""°v°°^ ." °..""•«..._„"° _,.„. °:.
<br /> insulation shall be installed in the recommended cavity depth.Where an ",,,,,,,"„°„"," °„""""`""^'"" •°° °` -
<br /> obstruction in the cavity due to services,blocking,bracing or other obstruction ;4;:;;:b:,",a°";Y?'.�<:„w": Po'„:°,'mow," "°•"`"'°" "„�„
<br /> exists,the batt product will be cut to fit the remaining depth of the cavity.Where ,w,a:�,:"'�,„::`P
<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. ° °",,, ,", ° °"• w ",,,,,,^,",,,,.,,„ ,.,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 .,,°_,.„«."..„",", �°° ° ^"x°=N=.«.r°"•.. ,° z
<br /> installed filling the entire cavity and within the manufacturers'density
<br /> recommendation.
<br /> The air barrier in any dropped ceiling/soffit shall be aligned with the insulation «, z z and any gaps in the air barrier sealed.Access openings,drop down stair or knee
<br /> wall doors to unconditioned attic spaces shall be sealed. The insulation in any """•"'""° - _•.""•••" o""""• w Cn Q
<br /> dropped ceiling/soffit shall be aligned with the air barrier. Batt insulation installed „,„,.°„ „",,,,,,,, ," O•""=• U �- J
<br /> in attic roof assemblies may be compressed at exterior wall lines to allow for w " _ 0..;„„ uj Q CL
<br /> required attic ventilation. "'°" "°"""'" ,.M",.,„„„."
<br /> Corners and headers shall be insulated and the junction of the foundation and — "��°+°T•"' •° °°'•""° '
<br /> sill plate shall be sealed.The junction of the top plate and top of exterior walls """" Q
<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.skvliahts 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 /> Rim foists MECHANICAL SYSTEMS: BE 14.0 SEER OR BETTER,AS TESTED PER AHRI STANDARD 210/240.MINIMUM HEATING EFFICIENCY SHALL BE 10.0 HSPF AS TESTED
<br /> Rim joists Shall be Insulated and Include the air barrier. PER AHRI STANDARD 210/240.(PER WSEC TABLE C402.2(2)&WSEC CREDIT 3.6).SYSTEM SHALL BE CAPABLE OF HEATING AT
<br /> OUSE VENTILATION
<br /> HEATING/COOLINGTI8 WHOLE
<br /> Floors!Including above-aarape and cantilevered floors! HOUSE VENTILATION SYSTEM OUTDOOR TEMPERATURES OF 5°F OR LOWER. UJ
<br /> Insulation shall be installed to maintain permanent contact with underside of SHALL BE DESIGN/BUILD BY SYSTEM SIZING SHALL BE INDICATED IN WSEC-R CALCULATIONS ABOVE,OR AS DETERMINDED BY MECHANICAL ENGINEER. /'1�
<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 I= C l)
<br /> SHALL BE PROVIDED FOR REVIEW .0.: J
<br /> AS A DEFERRED SUBMITTAL. 0>
<br /> insulation. J
<br /> Crawl space walls 1B OUTDOOR CONDENSING UNIT. C 3
<br /> Where provided in lieu of floor insulation,insulation shall be permanently /X N
<br /> attached to the crawlspace walls.Exposed earth in unvented crawl spaces shall V to Q
<br /> be covered with a Class I vapor retarder with overlapping joints taped. WINDOW'Y (n W
<br /> Shafts,penetrations sc is Plc C7
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<br /> Duct shafts,utility penetrations,and flue shafts opening to exterior or WINDOW'H' WALL Z m
<br /> unconditioned space shall be sealed. 18 a11PID w1 WALL WINDOW'B' >
<br /> W1 So P SLDR O LU ()
<br /> Narrow cavities ------ AIR BARRIER&THERMAL ENVELOPE 114 SF 123 SF I— p
<br /> Batts in narrow cavities shall be cut to fit and installed to the correct density AIR BARRIER&THERMAL ENVELOPE AT FLOOR U
<br /> without any voids or gaps or compression.Narrow cavities shall be filled by -' Z V a insulation that on installation readily conforms to the available cavity space. ® AIR BARRIER&THERMAL ENVELOPE AT CEILINGIROOF W Garaae separation -
<br /> Air sealing shall be provided between the garage and conditioned spaces. ROOJ
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<br /> NOTES:
<br /> Recessed lighting `.i
<br /> 1. Wall areas indicated are"net"measurements and do not include 89 F
<br /> Recessed light fixtures installed in the building thermal envelope shall be air door or window openings.tight,IC-fated. 2. Assembly for party walls at units are not described in WSEC �[Plumbing and wiring appendix A;calculated R,alue is assumed as follows:
<br /> Batt insulation shall be cut neatly to fit around wiring and plumbing in exterior INTR AIR FILM: 0,17
<br /> walls. There shall be no voids or gaps or compression where cut to fit. GWB: 0.46 FLOOR Ref.10-2:
<br /> a Insulation that on installation readily conforms to available space shall extend R75 BATT INSUL. F=0.360 WALL WALL
<br /> behind piping and wiring. W 2x4 C 16"OC: 12.70 W2 bV2
<br /> PP 9 9• SHEATHING: 0.94 84 SF WALL WALL 43'-1"xV-1"= 43-1"x I.A., 'Z
<br /> $ Shower/tub on exterior wall LINVE
<br /> R15 BATT INSUL.NT.AIR GAP: 0.91 W2 W2 348 SF 348 SF
<br /> E Exterior walls adjacent to showers and tubs shall be insulated and the air barrier SHEATHING: 0.94 43'-1"x 10E"= 43'-1"x 10'8"=
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<br /> „ installed separating them from the showers and tubs. w/2x4®16"OC: 12.70 WALL 452 SF 452 SF _ °-�'
<br /> Electrical/phone box on exterior walls GWB: 0.45 113 SF
<br /> The air barrier shall be installed behind electrical or communication boxes or air ICITR.AIR FILM:- 0.17 - O1
<br /> TOTAL R VAL, 29.43(U=0.034) WALL WALL O N
<br /> sealed boxes shall be installed. VJ2 SF �r ,
<br /> o HVAC register boots 33'-91/2"x9-6"= I�1 _
<br /> HVAC register boots that penetrate building thermal envelope shall be sealed to WSEC SECTION R402.1 321 SF
<br /> a
<br /> the subfloor or drywall. INSULATION&FENESTRATION REQUIREMENTS
<br /> BY COMPONENT:
<br /> WALL 1A
<br /> 30 SF a JOB NO.:
<br /> WSEC SECTION R403.7.1 Fenestration max.U-factor: 0.27 for operable
<br /> All detached one-and two-family dwellings and multiple single-family dwellings windows,0.24 for 22205fixed windows WALL -
<br /> o (townhouses)up to three stories in height above grade plan using electric zonal -PLOT DATE
<br /> heating as the primary heat source shall install an inverter-driven ductless mini-split Roof/Ceiling R-Value: R-49,adv.framing 10 SF 1n4noz41o:ae:53AM
<br /> heat pump in the largest zone in the dwelling. Building permit drawings shall 9 9
<br /> specify the heating equipment type and location of the heating system. (raised heel truss)
<br /> E Floor R-Value R-38 WiL 1MNDOW'A' DATE: 0/08/2023
<br /> .', 132SF sc so sLDR WALL 2850 PC'L' $I�OWwmd— SCALE: As indicated
<br /> - Wood-frame Well R-Value: 128 SF -DRAWN: MIS
<br /> Exterior: R-21
<br /> Party walls: (2)R-15 UNIT 6 3 R D FLR. CHCKD: TM
<br /> ° Notes: UNIT B 1ST FLR. UNIT B 2ND FLR. GENERAL SHEETB
<br /> See sheet A20 for typical weather barrier installation details Slab R-value&Depth R-10(perimeter& 'SHEET No.:
<br /> See sheet AV for typical air barrier installation details under entire slab) A03 b
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