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<br /> 2018 WSEC ANALYSIS:
<br /> WSEC SECTION R401.3
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<br /> A permanent certificate shall be completed by the builder or other approved party w°°� " wsE°°
<br /> _ and posted on a wall in the space where the furnace is located,a utility room,or an 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"=��,m.."•G°"�,,"�,°,° m
<br /> disconnect label,or other required labels.The certificate shall list the predominant °°"'°"°°°"'E°""°`^"H ,,, , "„",�,"",",,",°gyp,• Zw
<br /> R-values of insulation installed in or on ceiling/roof,walls,foundation(slab,below- —_ „ '^'• ^"%°
<br /> grade wall,and/or floor)and duds outside conditioned spaces; U-factors for w"„,",,,,,",.„�,.,. „,�.."„..°,a".". ~
<br /> fenestration and the solar heat gain coefficient(SHGC)of fenestration;the results
<br /> "
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<br /> air leakage testing do
<br /> ne on the _
<br /> from any required duct system and building envelope g g
<br /> building;and the results from the whole-house mechanical ventilation system flow
<br /> rate test. „„.,_."_,- ^°.,„„.,,...""".,^°,_°,,,„"
<br /> WSEC SECTION R402.4
<br /> The building thermal envelope shall be constructed to limit air leakage. Each ^_°_"_°•^••_°• "_• „•m^°"^•^•_ „..,..,,"„„.. `"'
<br /> dwelling unit shall be tested and verified as having an air leakage rate of not
<br /> exceeding A 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 „„"",•,,,,^„°„ -
<br /> R402.4 of the Washington State Residential Energy Code.
<br /> Air barrier and thermal barrier ^"••�u• w^*'^„^' z
<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
<br /> material. „.,,„.
<br /> Caviri insulation installation a° 1
<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 /> M SMY„M
<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 °„ "". "•-=�.a°•^ a..",
<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
<br /> exists,the batt product will be cut to fit the remaining depth of the cavity.Where °•• ^„•„„°^",wi30z0".•mrw«=„."- " „•b "•^^•°°""°„=°m..,..w,°^•=° ^'•^^°^^ °•'^^'""•"
<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. "•" *"�
<br /> There shall be no compression to the batt at the edges of the cavity due to inset "°�ro.^.",• m ° _.°,„."°,^°..„""...m«^+• o.„°",meµ^ "^"_, "°,
<br /> stapling installation tabs. _ .Ro.•=^•"„>wM,°°,m. ,° °" } ~
<br /> Insulation that upon installation readily conforms to available space shall be w=•"•a=="^-^ „-°• "^ _• ° '°'"i".'"'„`""""°'"''°""'°"""°°"' """"""" �^ �� 0 z
<br /> installed filling the entire cavity and within the manufacturers'density " .m " °
<br /> recommendation. `"'"°"""""`°'""°°'"" O
<br /> Ceilinalattic „w,en"„","°.=a.,,,«��°„.,,„m „„°.,"," „. °,. �..„ .. „..aa.^." ,".„u. w CO
<br /> The air barrier in any dropped ceiling/soffit shall be aligned with the insulation ---- "� "��� °=^„,°mu.m, „•� ,o-. °"„ "� ^ "" »«.
<br /> and any gaps in the air barrier sealed.Access openings,drop downs tair or knee z z
<br /> wall doors to unconditioned attic spaces shall be sealed. The insulation in any "°°" w
<br /> dropped ceiling/soffit shall be aligned with the air barrier. Batt insulation installed „...°.°„.,, «a�°•�•_•° "" '"' "^'"' Ory,„w U } J
<br /> in attic roof assemblies may be compressed at exterior wall lines to allow for .^. _ ••".. °n e °" ^"a. w J
<br /> required attic ventilation. is
<br /> Walls
<br /> Corners and headers shall be insulated and the junction of the foundation and -- — w"",,,•„" Q
<br /> sill plate shall be sealed.The junction of the top plate and top of exterior walls '" ""°�'°"OET""'-° °�°0ri _ °°" •
<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. °u° „..„.,m °°� „.,,,,,°„._„„^„„°„..„a".^^„.°„„°„„.,.„„,°.°.L=°w.m°^°.="m°„n„,,.°m, „�,", " ��,„.".•„„^.�,a.M„.a""«W,"�°"�s�«,°^°.0�_„„.„„.°°„ ,m,",
<br /> Knee walls shall be sealed.
<br /> Windows.skvlights and doors
<br /> The space between window/door jambs 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 /> MECHANICAL SYSTEMS:
<br /> Rim foists 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. HEATING/COOLING 8 WHOLE PER AHRI STANDARD 210,240.OUTDOOR TEMPERATURES O(PER
<br /> b F WSEC
<br /> OR LOWERTABLE C402.2(2)&WSEC CREDIT 3.8).SYSTEM SHALL BE CAPABLE OF HEATING AT
<br /> Floors IinclOdina above-garage and cantilevered floors) HOUSE VENTILATION SYSTEM SYSTEM SIZING SHALL BE INDICATED IN WSEGR CALCULATIONS ABOVE,OR AS DETERMINDED BY MECHANICAL ENGINEER. CC
<br /> Insulation shall be installed to maintain permanent contact with underside of SHALL BE HE DES
<br /> BY
<br /> OTHER,THE DESIGN OF WHICH to INDOOR DUCTLESS SPLIT HEAT PUMP SYSTEM Q O J
<br /> S
<br /> subfloor decking.The air barrier shall be installed at any exposed edge of SHALL BE PROVIDED FOR REVIEW O � J
<br /> Insulation. AS A DEFERRED SUBMITTAL. iB OUTDOOR CONDENSING UNIT. D C =
<br /> Crawl space walls m cc
<br /> Where provided in lieu of floor insulation,insulation shall be permanently 0 to Q
<br /> attached to the crawlspace walls.Exposed earth in unvented crawl spaces shall U) 3
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<br /> be covered with a Class I vapor retarder with overlapping joints taped. WINDOW'Yso 10 Pic y
<br /> Shafts.penetrations
<br /> Duct shafts,utility penetrations,and flue shafts opening to exterior or ° WINDOW'H' WALL
<br /> unconditioned space shall be sealed. 1B ° 22 311PIC W1 WALL tP se o R e O Lll U
<br /> Narrow cavities ------ AIR BARRIER&THERMAL ENVELOPE 114 SF 123 SIF p LL
<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 ---- w U d
<br /> insulation that on installation readily conforms to the available cavity space. ® AIR BARRIER&THERMAL ENVELOPE AT CEILING/ROOF _
<br /> Garage separation FLOOR Ref.10-2:F= ROOF Ref.10-7� m
<br /> Air sealing shall be provided between the garage and conditioned spaces. 0.360 __ U=0.020
<br /> Recessed liahtina NOTES:
<br /> 1. Wall areas indicated are neP measurements and do not include � 189 SF 653 SF
<br /> Recessed light fixtures installed in the building thermal envelope shall be air door or window openings.
<br /> tight,IC-rated. 2. Assembly for party walls at units are not described In WSEC KWALLL 1A
<br /> Plumbing and wiring appendix A;calculated R-value is assumed as follows:
<br /> a Batt insulation shall be cut neatly to fit around wiring and plumbing in exterior INTR AIR FILM: 0.17 FLOOR Ref.10-2:
<br /> awalls. There shall be no voids or gaps or compression where cut to fit. Gwe: 0.45 WALL [*�] WALL
<br /> R75 BATT INSUL. F=0.360
<br /> Insulation that on installation readily conforms to available space shall extend W 2x4 @ 15°OC: 12.70 wz vw Z
<br /> behind piping and wiring. SHEATHING: 0.94 84SF WALL WALL 43'-1"x8'-1"= 43-1"xS-1"=
<br /> ° Shower/tub on exterior wall UNVENTAIRGAP: 0.91 YY2 W2 348 SF 348 SF
<br /> IExterior walls adjacent to showers and tubs shall be insulated and the air barrier SHEATHING: 0.94 x 10'�"= 43'-1"x 10'�"= \\ y
<br /> 1 R15 BATT INSUL. WALL 452 SF 452 SF - y
<br /> installed separating them from the showers and tubs. wl2x4 @ 16"OC: 12.70 < w
<br /> ` Electrical/phone box on exterior walls GWB: 0.45 113 SF 0
<br /> INTR.AIR FILM'_ ` 'o
<br /> The air barrier shall be installed behind electrical or communication boxes or air TOTAL R VAL.: 22�(U=0,034) WALL 2 WALL ICI c,
<br /> 0 sealed boxes shall be installed. n SF
<br /> 33'-9 111,x S"._
<br /> HVAC resister boots 321 SF
<br /> HVAC register boots that penetrate building thermal envelope shall be sealed to WSEC SECTION R402.1 WALL
<br /> the subfloor or drywall
<br /> INSULATION&FENESTRATION REQUIREMENTS 1n O
<br /> BY COMPONENT: o sF d JOB NO.:
<br /> WSEC SECTION R403.7.1 Fenestration max.U-factor: 0.27 for operable zzzo5
<br /> All detached one-and two-family dwellings and multiple single-family dwellings windows,0.24 for
<br /> o (townhouses)up to three stories in height above grade plan using electric zonal fixed windows L PLOT DATE
<br /> d heating as the primary heat source shall install an inverter-driven ductless mini-split 10 SF vnrzo2a 2:22:45 PM
<br /> heat pump in the largest zone in the dwelling. Building permit drawings shall Roof/Ceiling R-Value: R 49,adv.framing
<br /> (raised heel truss)
<br /> specify the heating equipment type and location of the heating system. A WINDOW'A' "DATE: 06/OB/2023
<br /> Floor R-Value R-38 1 W1132 SF
<br /> e0 SLDR WALL WINDOW INDOW'C' ;,SCALE: As Indicated
<br /> 60
<br /> W1 26 so Plc 21 51 Vinyl W,M-,
<br /> Wood-frame wall R-Value: 128 SF P DRAWN: Me
<br /> Exterior: R-21
<br /> o cHcxD: TM
<br /> Party walls: (2)R-15
<br /> Notes: UNIT B 1ST FLR. UNIT B 2ND FLR. UNIT B 3RD FLR. GENERAL SHEETS
<br /> s SHEET No.:
<br /> See sheet A20 for typical weather barrier installation details Slab R-value&Depth R-10(perimeter&
<br /> See sheet A21 for typical air barrier installation details under entire slab) A03 b
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