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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
<br /> .anq posted on a wall in the space where the furnace is located,a utility room,or an _ "`"`°"`°""""""'"°'`"""°" °°"�.•_•.«••rc•G«.."-w:°==«,< av
<br /> p$r,bved locatigrr Inside the building.When located on an electrical panel,the °a, spa s°."r=
<br /> certificate shdlf 11dt cover or obstruct the visibility of the circuit directory label,service
<br /> disconnect label,or other required labels.The certificate shall list the predominant - „ ,,;,', '-
<br /> R-values of insulation installed in or on ceiling/roof,walls,foundation(slab,below- 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 - .,,,,„„°„°,,,w„,,,",,,w.,,,,r „.."....,.,.•,,,,,,,,,",„,,,,,,„,,,°,,,„,. a «.„ «.+ u°° a ••« - -
<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 test. it
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<br /> WSEC SECTION R402.4 �Po�° -"'•+*°"^""
<br /> The building thermal envelope shall be constructed to limit air leakage. Each «°•„���^°,m""•" „."" <„m
<br /> dwelling unit shall be tested and verified as having an air leakage rate of not
<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
<br /> R402.4 of the Washington State Residential Energy Code. _
<br /> Air barrier and thermal bar ""°'•"°"•'""'""'"'"'""'"°"°""""°
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<br /> rier
<br /> A continuous air barrier shall be installed in the building envelope.Exterior ��<"d".,"• °«+_ ° °° ° °« w"„M.„,«. ° _
<br /> thermal envelope contains a continuous air barrier.Breaks orjoints in the air °° °° :"y=°°�°°•�:,.N""
<br /> barrier shall be sealed.Air-permeable insulation shall not be used as a sealing `"^•°•*° ^°°°••^U.1-
<br /> material. «.„,..._,..,. .° °"„..._"°«�«„,.,a".„�«,•,o„ -
<br /> _ Cavity Insulation installation °" a"^•^"°
<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
<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
<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 , +a•«.,°." °°°" ,° , " . `""°'°"'•" ,,,,,,,,,,,,,"
<br /> stapling installation tabs. "„,,.•
<br /> Insulation that upon installation readily conforms to available space shall be (� z
<br /> installed filling the entire cavity and within the manufacturers'density °",=.rc„"� �°". „..aa�m...•„„«•... °,„.y...o•"•• `°""°"""""`°"°'°"'°"'""'"
<br /> recommendation. Ir D
<br /> Ceiling/attic .,°..°=°s.,= ", u.Pw°e„„.„« «« a„° Ow,«„ L1J U
<br /> The air barrier in any dropped ceiling/soffit shall be aligned with the insulation „«• Z W z
<br /> and any gaps in the air barrier sealed.Access openings,drop down stair or knee ,a .,,° «°. LL.j
<br /> wall doors to unconditioned attic spaces shall be sealed. The insulation in any _. ^••••°- "••_- } Q
<br /> dropped ceiling/soffit shall be aligned with the air barrier. Batt insulation installed ° -°�•_�^° . "°'••�•°_•^ °° 0'""°" U J
<br /> in attic roof assemblies may be compressed at exterior wall lines to allow for , ° - " '-" ^ UJ Q
<br /> required attic ventilation. ®""' (n
<br /> Corners and headers shall be insulated and the junction of the foundation and =p,«,°",«" „ „ . "" •".„°"^ 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. «,°«ro."•«a.«„..° .,..««.°,,,,„:,,..,e.°.°.=.r=°,«°.mE«°.°.,_«.«",,.,,..°., ,,,,-°„
<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 ioists 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. HEATING/COOLING&WHOLE PER AHRI STANDARD 2101240.(PER WSEC TABLE C402.2(2)&WSEC CREDIT 3.6).SYSTEM SHALL BE CAPABLE OF HEATING AT
<br /> Floors lincludina above-aaraae and cantilevered floors) HOUSE VENTILATION SYSTEM OUTDOOR TEMPERATURES OF 5°F OR LOWER.
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<br /> Insulation shall be installed to maintain permanent contact with underside of
<br /> SHALL BE DESIGN/BUILD BY SYSTEM SIZING SHALL BE INDICATED IN WSEC-R CALCULATIONS ABOVE,OR AS DETERMINDED BY MECHANICAL ENGINEER.
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<br /> OTHERS,THE DESIGN OF WHICH 1A INDOOR DUCTLESS SPLIT HEAT PUMP SYSTEM < J
<br /> subfloo 2 r decking.The air barrier shall be installed at any exposed edge of SHALL BE PROVIDED FOR REVIEW
<br /> Insulation. AS A DEFERRED SUBMITTAL. 1B OUTDOOR CONDENSING UNIT. = G :
<br /> Crawl space walls L Cr
<br /> Where provided in lieu of floor insulation,insulation shall be permanently p
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<br /> attached to the crawlspace walls.Exposed earth in unvented crawl spaces shall WALL WINDOW'Q' V) W
<br /> be covered with a Class I vapor retarder with overlapping joints taped. W1 OP ae SGD WINDow'H'
<br /> Shaffs.penetrations 115 SF 22 311PIC Z d p
<br /> Duct shafts,utility penetrations,and flue shafts opening to exterior or WALL WINDOW'B' a) Cr
<br /> unconditioned space shall be sealed. ° ° W1 so So SLDR O W U
<br /> Narrow cavities ------ AIR BARRIER&THERMAL ENVELOPE 19 123 SF C I-L
<br /> Batts in narrow cavities shall be cut to fit and installed to the correct density AIR BARRIER&THERMAL ENVELOPE AT FLOOR ' Q
<br /> without any voids or gaps or compression.Narrow cavities shall be filled by Z O
<br /> insulation that on installation readily conforms to the available cavity space. AIR BARRIER 8 THERMAL ENVELOPE AT CEILING/ROOF /' j / / W a
<br /> Garage separation vnNDOW'B' ,/ ROOFRgf,10-T.
<br /> Air sealing 60 50 SLDR U ���2g
<br /> shall be provided between the garage and conditioned spaces. NOTES: 70g SP\`,
<br /> Recessed liahtina 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 orvrindowopenings. F=0.360 I FLOOR Ref.10-3, eo sa SLDR r 1A
<br /> tight,IC-fated. 2. Assembly for party walls at units are not described in WSEC ll_-0 025
<br /> Plumbina and wirina appendix A;calculated R,mlue is assumed as follows: 86 SF 622 SF
<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. Gwe: 0.45 WALL
<br /> a Insulation that on installation readilyconforms to available space shall extend R15 BATT INSUL.
<br /> P W 2x4 @ 16"OC: 12.70 27 SIF
<br /> behind piping and wiring. SHEATHING: 0.94 WALL
<br /> Z
<br /> Showerltub on exterior wall UNVENT.AIR GAP: 0.91 WL WALL
<br /> Exterior walls adjacent to showers and tubs shall be insulated and the air barrier SHEATHING: 0.94 fleas 60 30 Piw'cc' - .x
<br /> 4T-1"x 10'-6"_
<br /> R156AT71NSUL. { 494 SF d13D PIC 47'-1"x S'-1"= =�
<br /> installed separating them from the showers and tubs. W 2x4 @ 16"OC: 12.70 -.1A 356 SF
<br /> Electrical/phone box on exterior walls GWB: 0.45 j e
<br /> The air barrier shall be installed behind electrical or communication boxes or air INTR.AIR FILM:- 0.17 N
<br /> sealed boxes shall be installed. TOTAL R VAL.: zs.43(u=o.o34) d
<br /> oWALL WINDOW'CC' _
<br /> I HVAC resister boots 13a SF �� so 3D PIC
<br /> o HVAC register boots that penetrate building thermal envelope shall be sealed to WSEC SECTION R402.1 .,
<br /> the subfloor or drywall. INSULATION&FENESTRATION REQUIREMENTS WALL / r r WALL Q
<br /> BY COMPONENT: 2 SIF �� 299 SF—
<br /> WALL
<br /> WSEC SECTION R403.7.1 Fenestration max.U-factor: 0.27 for operable doe No.:
<br /> windows,0.24 for WI30 SUDR E' 1A 22205
<br /> All detached one-and two-family dwellings and multiple single-family dwellings WINDOW'FF' A 3D SLDR 1A -
<br /> fixed windows
<br /> (townhouses)up to three stories in height above grade plan using electric zonal qo ss SLDR =PLOT DATE
<br /> heating as the primary heat source shall install an inverter-driven ductless mini-split WALL � WALL � 1/17/2024 222:49 PM
<br /> Roof/Ceiling R-Value: R-49,adv.framing a2 SF
<br /> mheat pump in the largest zone in the dwelling. Building permit drawings shall \ ?
<br /> specify the heating equipment a and location of the heating system. (raised heel truss) `/ / ?
<br /> p ty 9type 9 Y Floor R-Value R-38 WALL W,NLL - DATE: 06/08/2023
<br /> E 12 SF 17 47 SF WALL ;SCALE: As Indicated
<br /> Wood-frame wallR-Value: WI61211W' W1 WALL WALL
<br /> Exterior: R-21 WALL 2a sD wnyiwnd 59 SF W 19 SF Aso B WALL
<br /> DRAWN: MIS
<br /> _ Party walls: (2)R-15 21 SF WINDOW'M' 37 SF 85 SF CHCKD: TM
<br /> Notes: 2a be Plc GENERALSHEETS
<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) U N IT C - 1 ST F L R. UNIT C - 2 N D F L R. UNIT C - 3 R D F L R. - A0 3 C
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