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2018 WSEC ANALYSIS: p
<br /> WSEC SECTION R401.3
<br /> A permanent certificate shall be completed by the builder or other approved party
<br /> an&posted on a w44 in the space where the furnace is located,a utility room,or an w°""_° •_•"„,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 m
<br /> disconnect label,or other required labels.The certificate shall list the predominant '�*°"'°"°• """a""" ^w°=°• °•""•^^�'^'• z
<br /> R-values of insulation installed in or on ceiling/roof,walls,foundation(slab,below- "• „,,,.",,,,,„ ""'°"'°'"°' -•.=mom •"•u"•".."•�ro�•
<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
<br /> from any required duct system and building envelope air leakage testing done on the „M �
<br /> building;and the results from the whole-house mechanical ventilation system flow ----
<br /> rate test. ..A.-earu.
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<br /> WSEC SECTION R402.4 � �w x
<br /> The building thermal envelope shall be constructed to limit air leakage. Each
<br /> dwelling unit shall be tested and verified as having an air leakage rate of not
<br /> exceeding;t 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 _12—
<br /> "�"" .•"••"
<br /> R402.4 of the Washington State Residential Energy Code. U •u . u
<br /> Air barrier and thermal barrier -
<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 0��• -
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<br /> barrier shall be sealed. shall Air-permeable insulation "•^•"°°-w"•^'"'°•^^'•^°^^"^-p all not be used as a sealing
<br /> material.
<br /> v.
<br /> - Cavltv Insulation
<br /> All cavities in the thermal envelope shall be filled with insulation.The density of °""•°° °"".,,x",",
<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 w.
<br /> obstruction in the cavity due to services,blocking,bracing or other obstruction „.,".,,^^..^,.,„.,,,^,,,,,,,,,,,,,,,...,uw„.„",,,°,,,°.„..,,,,�„,„ ","°"�.,,,.," _•°, ,,° ,.° °.° a,,,,�„^,", „„, ,„, "„�"",�,,,,
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<br /> exists,the bait 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 balt Is used,the installation tabs must be stapled to the face of the stud. ° ,"„ I ,,,, " I
<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 ........ .,.^ °°^,., -°•"'• -v"••• "......,,^
<br /> installed filling the entire cavity and within the manufacturers'density .,,,".„,", 0" G Z
<br /> recommendation. "m.„w""".,� - ow°",. .,.....,°.,.,,.,,,..,,„.m"°,..,">„..,.w.,..
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<br /> e air barrier in any dropped ceiling/soffit shall be aligned with the insulation „, ",,.",, °,,,„.°„, ,,,. ,.,. .". „ �,,,°r,,,,",
<br /> and any gaps in the air barrier sealed.Access openings,drop down stair or knee - O ,"w w Z
<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 „. ,�,��, „„„,,,,,, ��'"°• U J
<br /> in attic roof assemblies may be compressed at exterior wall lines to allow for - w " ,. --• O•"".• W J (L
<br /> required attic ventilation. """ "" °'" • .•,...�....,_.,,.. Q
<br /> Corners and headers shall be insulated and the junction of the foundation and _
<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. " °„�,°..,..x.",�".,.,,°.,«". „^.„....„„... u=°.,,"..°._"_,.""°....,,, „„„,°„ ,»•«<....."., ". ...„.,. „.,m» .,..,.,�,."�.»em..,",...,,.,.^�.,,..,,,...°,.rs...°"�wr,.=°""�r...,o„ ,,,,,•�,
<br /> Windows,skvliahts and doors
<br /> The space between window/doorjambs and framing and skylights and framing
<br /> shall be sealed.
<br /> Rim foists srar_H•H!^•�a__-__ BE 14.0 BEER
<br /> O R B SYSTEM SHALL BE A MULTI-HEAD DUCTLESS SPLIT HEAT PUMP SYSTEM.MINIMUM COOLING EFFICIENCY SHALL
<br /> -- - - BE 14,0 SEER OR BETTER,AS TESTED PER AHRI STANDARD 210/240.MINIMUM HEATING EFFICIENCY SHALL BE 10.0 HBPF AS TESTED
<br /> Rim joists shall be insulated and include the air barrier. ., - uc PER AHRI STANDARD 210/240.(PER WSEC TABLE C402.2(2)&WSEC CREDIT 3.6).SYSTEM SHALL BE CAPABLE OF HEATING AT
<br /> OUSEENTIHEATING/COOLINGTI &WHOLE OUTDOOR TEMPERATURES OF 5°F OR LOWER. UJ
<br /> Floors(inshall be aboved to a i and cantilevered floors) HOUSE VENTILATION SYSTEM
<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. �•y�
<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 L.J. C U
<br /> insulation. SHALL BE PROVIDED FOR REVIEW Q O J
<br /> Crawl sDaoe walls AS A DEFERRED SUBMITTAL. O Ol
<br /> 1B OUTDOOR CONDENSING UNIT. C 3
<br /> Where provided in lieu of floor insulation,insulation shall be permanently
<br /> attached to the crawlspace walls.Exposed earth in unvented crawl spaces shall
<br /> be covered with a Class I vapor retarder with overlapping joints taped. WINDOW'Y U) W
<br /> Shafts,oenetrations ad to Plc
<br /> Duct shafts,utility penetrations,and flue shafts opening to exterior or WINDOW'H' WALL Z d
<br /> unconditioned space shall be sealed. +a WALL WINDOW'B' O >
<br /> Narrow cavities ------ AIR BARRIER&THERMAL ENVELOPE 2Z3++PIC 1148E W1 IP so SLDR LU U
<br /> 23 SF C LL
<br /> Batts in narrow cavities shall be cut to fit and installed to the correct density ® AIR BARRIER&THERMAL ENVELOPE AT FLOOR (�
<br /> without any voids or gaps or compression.Narrow cavities shall be filled by Z L
<br /> insulation that on installation readily conforms to the available cavity space. ® AIR BARRIER&THERMAL ENVELOPE AT CEILING/ROOF U (L
<br /> Garage separation FL UJ
<br /> 0-7:
<br /> 1
<br /> Ref.ROOF Ref.
<br /> Air sealing shall be provided between the garage and conditioned spaces. \ 1 m
<br /> Recessed liahtina NOTES: --
<br /> 0.
<br /> -
<br /> Recessed light fixtures installed in the building thermal envelope shall be ai 1. Wall areas indicated are"net"measurements and do not Include
<br /> r door or window openings. 653 SF
<br /> tight,IC-fated. 2. Assembly for party walls at units are not described in WSEC ry WALL O fA
<br /> appendix A;calculated R-value is assumed as follows: 3o Plumbing and wiring sF �,
<br /> Batt insulation shall be cut neatly to fit around wiring and plumbing in exterior INTR AIR FILM: 0.17
<br /> Nwalls. There shall be no voids or gaps or compression where cut to fit. GWB: 0.45 FLOOR Ref.10-2,
<br /> Insulation that on installation readily conforms to available space shall extend R75 GATT INSUL. F=0.360 WALL WALL
<br /> behind piping and whin w/2x4 C 16"OC: 12.70 _ W2 W2
<br /> P P 9 9 SHEATHING: 0.94 84 SF WALL - WALL 43'-1'x 8'-1"= 43'-1"x&-V
<br /> Shower/tub on exterior wall UNVENT.AIR GAP: 0.91 Vv7 - 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•-r'x 1`F` -- 43'-° -
<br /> 1 -- 1 x10'-8"= m R15 BATT INSUL.
<br /> installed separating them from the showers and tubs. w/2x4 C 16"Oc: 12.70 WALL 4sz sF 4s2 SF
<br /> N Electrical/phone box on exterior walls GWB: 0.45 113 SF y
<br /> The air barrier shall be installed behind electrical or communication boxes or air INTR.AIR FILM:_ 0.17
<br /> E sealed boxes shall be installed. TOTALRVAL.: 29.43(U=0.034) WALLWALL K
<br /> HVAC resister boots 33'-91/2"x 9'-6"
<br /> 321 SF
<br /> o HVAC register boots that penetrate building thermal envelope shall be sealed to WSEC SECTION R402.1 "� g
<br /> the subfloor or drywall. INSULATION&FENESTRATION REQUIREMENTS
<br /> BY COMPONENT:
<br /> WALL w 1A
<br /> m 30 SF , 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
<br /> windows,0.24 for
<br /> (townhouses)up to three stories in height above grade plan using electric zonal fixed windows WALL
<br /> � � PLOT DATE
<br /> heating as the primary heat source shall install an inverter-driven ductless mini-split 10 sF
<br /> m heat pump in the largest zone in the dwelling. Building permit drawings shall Roof/Ceiling R-Value: R-49,adv.framing 1n7no242:z2:a5 PM
<br /> specify the heating equipment type and location of the heating system. (raised heel truss)
<br /> E Floor R-Value R-38 WALL WINDOW'A' DATE: oatos,2023
<br /> 41 s0 SLDR WALL WINDOW V NDOW'C'
<br /> 132 SF Wt 2a sc Plc 21 sc Vinyl wlnaowa SCALE: As Indicated
<br /> o Wood-frame wall R-Value:
<br /> Exterior R-21 128 SF DRAWN: Me
<br /> ° Party walls: (2)R-15 CHCKD: TM
<br /> Notes: UNIT B 1ST FLR. UNIT B 2ND FLR. UNIT B 3RD FLR. GENERAL 6HEErB
<br /> s 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)
<br /> A03b
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