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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
<br /> and posted on a wall in the space where the furnace is located,a utility room,or an .area== •M<=••„,sE==°<° 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 c;
<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- „.,,,,„,,,n„ °"°`<°"°" .."_�._• •_.,..,..�__°,< -�
<br /> grade wall,and/or floor)and ducts outside conditioned spaces;U-factors for „,•^",,,°„^„,�" N°W. °mN "�°'°=FMB"" P "„'�M ""
<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 5
<br /> rate test.WSEC SECTION R402.4
<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 notud
<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 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 m
<br /> barrier shall be sealed.Air-permeable insulation shall not be used as a sealing
<br /> material. .,°",,..°=`F9 ,....°°._._.... °° .,.,.,,.„..
<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 -- e e `°"""""........"°
<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
<br /> stapling installation tabs.
<br /> Insulation that upon installation readily conforms to available space shall be = < ,M.",,.","°., - °°„°"„ °, e= _^°"'^-v'w°• ,,.,.,_.^ °".<°°..,," Oq �r z
<br /> installed filling the entire cavity and within the manufacturers'density m. (D Z
<br /> recommendation. m=""" °.'°"" '..,"sr«'"`"""".,..<„.....x°'"�.."".,°°'" O
<br /> Ceilina/attic 0 W m
<br /> The air barrier in any dropped ceiling/soffit shall be aligned with the insulation ,,,,,„,,,""•° ° (�..",, Z (n Z
<br /> and any gaps in the air barrier sealed.Access openings,drop down stair or knee w c/) Q
<br /> wall doors to unconditioned attic spaces shall be sealed. The insulation in any ''- """"°°° _ °"°^°° '"°' ^^'"°°' -=�••a
<br /> dropped ceiling/soffit shall be aligned with the air barrier. Batt insulation installed
<br /> in attic roof assemblies may be compressed at exterior wall lines to allow for ° w _ .."w w J EL
<br /> required attic ventilation. ""'°° """"°"°° °° �,•••=-•,.w".:,. Q
<br /> C!o ners and headers shall be insulated and the junction of the foundation and Rm° E=:°°T "�•�°=�tl°°°mom=N"re�Rne o`""°W 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,skvliahts and doors
<br /> The space between window/doorjambs and framing and skylights and framing
<br /> Shall be Sealed. HEATING/COOLING SYSTEM SHALL BE AMULTI-HEAD DUCTLESS SPLIT HEAT PUMP SYSTEM.MINIMUM COOLING EFFICIENCY SHALL
<br /> Rim'OIStS 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/COOLINGTIN WHOLE OUTDOOR TEMPERATURES OF 5<F OR LOWER. UJ
<br /> Floors!including aboved to a i and cantilevered floors! HOUSE VENTILATION SYSTEM SYSTEM SIZING SHALL BE INDICATED IN WSEG-R CALCULATIONS ABOVE,OR AS DETERMINDED BY MECHANICAL ENGINEER.
<br /> Insulation shall be installed to maintain permanent contact with underside of SHALL BE DESIGN/BUILD 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 U
<br /> SHALL BE PROVIDED FOR REVIEW QO
<br /> insulation. J
<br /> Crawl Space walls AS A DEFERRED SUBMITTAL
<br /> 16 OUTDOOR CONDENSING UNIT. c =
<br /> Where provided in lieu of floor insulation,insulation shall be permanently 3
<br /> attached to the crawlspace walls.Exposed earth in unvented crawl spaces shall v W be covered with a Class I vapor retarder with overlapping joints taped. U) 0Shafts.penetrations 2? 0
<br /> Duct shafts,utility penetrations,and flue shafts opening to exterior or Z
<br /> unconditioned space shall be sealed. WI oDOW Y WALL WINDOW'B' a �
<br /> 60 1 PIC W1 6P 50 SWR O LLI („)
<br /> Narrow cavities ------ AIR BARRIER&THERMAL ENVELOPE 123 SF p LL
<br /> Batts in narrow cavities shall be cut to fit and installed to the correct density AIR BARRIER&THERMAL ENVELOPE AT FLOOR ° WINDOW'H' WALL
<br /> ® 1B
<br /> without any voids or gaps or compression.Narrow cavities shall be filled by 22 311PIC W1 :�- V® AIR BARRIER&THERMAL ENVELOPE AT CEILING/ROOF 114 SF Z
<br /> insulation that on installation readily conforms to the available cavity space. -� ,\\ W
<br /> Garage separation coAir sealing shall be provided between the garage and conditioned spaces. 0 �:
<br /> Recessed liahtina NOTES
<br /> 1. Wail areas indicated are'net'measurements and do not include FLOOR Ref.10-2:F=
<br /> Recessed light fixtures installed in the building thermal envelope shall be air door or window openings. c 0.360 \\-
<br /> tight,IC-rated. 2. Assembly for party walls at units are not described in WSEC
<br /> Plumbing and wiring appendix A;calculated R-value is assumed as follows: 189 SF 1A'
<br /> d Batt insulation shall be cut neatly to fit around wiring and plumbing in exterior INTR AIR FILM: 0,17 WALL
<br /> walls. There shall be no voids or gaps or compression where cut to fit. GWrB: 0.46
<br /> Insulation that on installation readily conforms to available space shall extend R15 GATT INSUL 3o sF wALL WALL
<br /> behind piping and w/zxa�16"oc: 12.70 W2 W2
<br /> 9 9 SHEATHING: 0.94 FLOOR Ref.10-2 43'-1"xe'-1"= 43'-1'xV4,
<br /> ° Shower/tub on exterior wall UNVENT.AIR GAP: 0.91 F=0.360 348 SF 348 SF
<br /> Exterior walls adjacent to showers and tubs shall be insulated and the air barrier SHEATHING: 0.94 - - m RWS BATT INSUL. 84 SF
<br /> installed separating them from the showers and tubs. /2x4 p 16"OC: 12,70 WALL WALL M m
<br /> Electrical/phone box on exterior walls GWB: 0.45 wz vaz N
<br /> INTR.AIR FILM' 0.17 43'-1"x 10`6 101-0,
<br /> The air barrier shall be installed behind electrical or communication boxes or air - 452 SF 452 SF 0 w
<br /> sealed boxes shall be installed. TOTAL R VAL.: 2943(u=o.o34> w3 SI ,
<br /> HVAC register boots 113 sF
<br /> oHVAC register boots that penetrate building thermal envelope shall be sealed to WSEC SECTION R402,1 WALL WALL a
<br /> the subfloor or drywall. 33,-91 z'9$,= LF
<br /> INSULATION&FENESTRATION REQUIREMENTS 321 SIF
<br /> BY COMPONENT:
<br /> WSEC SECTION R403.7.1 Fenestration max.Ll-factor: 0.27 for operable = JOB NO.:
<br /> `^ All detached one-and two-family dwellings and multiple single-family dwellings windows,0.24 for 22205
<br /> (townhouses)up to three stories in height above grade plan using electric zonalfixed windows -
<br /> heating as the primary heat source shall install an inverter-driven ductless mini-split - ���k PLOT DATE
<br /> mheat pump in the largest zone in the dwelling. Building permit drawings shall Roof/Ceiling R-Value: R-49,adv.framing 1 215/20 2 3 4 2 1:01 PM
<br /> specify the heating equipment type and location of the heating system. (raised heel truss) L'WA L =
<br /> E Floor R-Value R-38 10 SF DATE: 06lOB/2023
<br /> WALL WINDOW'! NDOW'C'
<br /> SCALE: As indicated
<br /> w1 a sc Pic so vnvl W nd—
<br /> Wood-frame wall R-Value: wa!! 128 sF P DRAWN: MB
<br /> W NDOW'A'
<br /> Exterior. R-21 W1 05o SLDR
<br /> Party walls: (2)R-15 132 SF _GHGxD. TM
<br /> GENEP UNIT B 3 R D F L R.
<br /> Notes: JtL SHEETS
<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) UNIT B 1 ST F L R. UNIT B 2 N D F L R. A03 b
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