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(� - _I C402.5.1.2 Building test.The completed building shall be tested and entering and exiting are provided.
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<br /> I the air leakage rate of the building envelope shall not exceed 0.40 Interior and exterior doors shall have a minimum distance between
<br /> -- IJ r - _ I 1 - -�I �`4 2015 2N D EDITION cfm/ft2 at a pressure differential of 0.3 inches water gauge (2.0 Us x m2 them of not less than 7 feet.The exterior envelope of conditioned
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<br /> A I (EXCERPT RELATED TO AIR BARRIERS AND TESTING. at 75 Pa) at the upper 95 percent confidence interval in accordance with vestibules shall comply with the requirements for a conditioned space.
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<br /> tr ,OUNOE� REFER TO THE FULL CODE TEXT FOR FULL REQUIREMENTS.) ASTM E 779 or an equivalent method approved by the code official.A Either the interior or exterior envelope of unconditioned vestibules shall
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<br /> report that includes the tested surface area,floor area, air by volume, comply with the requirements for conditioned space.The building c�
<br /> r JD 7,165 GSF b' -x ._ J _
<br /> _ iliC402.5 Air leakage-thermal envelope (Mandatory). stories above grade, and leakage rates shall be submitted to the lobby is not considered a vestibule. architects+ COMPANION
<br /> + li ROOM TYPE V-A •• •• ,, -_ �, ' 1. \.� The thermal envelope of buildings shall comply with Sections C402.5.1 building owner and the Code Official. If the tested rate exceeds that Exception: Vestibules are not required for the following: Q-
<br /> ` 51 FFE 457.1 C C rE Qa _ RESIDENT through C402.5.8. defined here, a visual inspection of the air barrier shall be conducted 1. Doors not intended to be used as building entrances.
<br /> i • ■I ■ • • • • • a'OMT ] ` C402.5.1 Air barriers.A continuous air barrier shall be provided and any leaks noted shall be sealed to the extent practicable.An 1928 43rd Ave E., Ste A
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<br /> i - _ _ _ _ 2. Unfinished ground level space greater than 3,000 square feet Seattle , W A 98112
<br /> G _ _ - - - - - " "` throughout the building thermal envelope.The air barriers shall be additional report identifying the corrective actions taken to seal air leaks 298 m2) if a note is included on thepermit documents at each
<br /> A.‘ • permitted to be located on the inside or outside of the building shall be submitted to the building owner and the Code Official and any ( ( 2 0 6 ) 4 5 3 • 4 0 o5 3
<br /> I. - CORRID R exterior entrance to the space stating "Vestibule required at time of s h o e s m i t h c o x. c o m
<br /> ` 5 o T.R envelope, located within the assemblies composing the envelope, or further requirement to meet the leakage air rate will be waived. tenant build-out if entrance serves a space greater than 3,000
<br /> - _ - _ ® 'I ,' �'�, any combination thereof.The air barrier shall comply with Sections 1. Test shall be accomplished using either (1) both pressurization square feet in area."
<br /> "+ , C �,r -i I �. SBIEM H '- I� C402K .5.1.1 and C402.5.1.2. and depressurization or (2) pressurization alone, but not 3. Doors opening directlyfrom a sleeping unit or dwellingunit.
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<br /> � R E I IL. N K C402.5.1.1 Air barrier construction.The continuous air barrier shall be depressurization alone.The test results shall be plotted against the
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<br /> 5�s 70 ® CDR IDDR BROOM correct P forpressurization in accordance with Section 9.4 of 4. Doors between a space smaller than 3,000 square feet(298 m2)
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<br /> +'` I� ! t ■, r' 1 EXISTING BUILDING constructed to comply with the following: in area and the exterior of the building or the building entrance
<br /> + , + + _ 111111kNmj1I ■_Y� ® ASTM E779.
<br /> - re- _ • - - r f 1. The air barrier shall be continuous for all assemblies that are the
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<br /> Z_ -■ ° 2. The testpressure range shall be from 25 Pa to 80 Paper Section lobby,where those doors do not comprise one of the primary
<br /> RESIDENT --- - - - - thermal envelope of the building and across the joints and 9 entrance paths to the remainder of the building.
<br /> `, - - - RD s:=�`''_ RESIDENT T RESIDENT assemblies. 8.10 of ASTM E779, but the upper limit shall not be less than 50 Pa,
<br /> ACTrvm r lM> 5. Revolving doors.
<br /> `+ + I I, K� N �� RESIDENT 11 2. Air barrier joints and seams shall be sealed, including sealing and the difference between the upper and lower limit shall not be
<br /> I I less than 25 Pa. 6. Doors used primarily to facilitate vehicular movement or material
<br /> L _ _ . =o transitions in places and changes in materials.The joints and seals
<br /> + I I� I I ACM: - - AIR BARRIER NOTES I handling and adjacent personnel doors.
<br /> + + shall be securely installed in or on the joint for its entire length so 3. If the pressure exponent n is less than 0.45 or greater than 0.85
<br /> + L I- MI !C - LINE OF AIR per Section 9.6.4 of ASTM E779, the test shall be rerun with 7. In buildings less than three stories above grade or in spaces that
<br /> `+ - I- I - - - - as not to dislodge, loosen or otherwise impair its ability to resist
<br /> do not directlyconnect with the buildingelevator lobby, doors that
<br /> I l� I BARRIER TEST positive pressure from wind, stack effect and mechanical additional readings over a longer time interval. y
<br /> ++ + SURFACE AREA: i have an air curtain with a velocity of not less than 6.56 feet per
<br /> I I L ventilation. C402.5.4 Doors and access openings to shafts, chutes, stairways, and
<br /> RESIDENT FLOOR 7,335 SF oM CDR Ili R SI ENT second (2 m/s) at the floor that have been tested in accordance
<br /> 51 III 3. Penetrations of the air barrier shall be caulked, gasketed or elevator lobbies. Doors and access openings from conditioned space to with ANSI/AMCA 220 and installed in accordance with the
<br /> + WALLS 3,589 SF
<br /> J , I I I , I I otherwise sealed in a manner compatible with the construction shafts, chutes, stairways and elevator lobbies shall be gasketed,
<br /> ` I 1 ROOF 7,335 SF manufacturer's instructions. Manual or automatic controls shall be
<br /> I SIDENT RESIDENT materials and location. Joints and seals associated with weatherstripped or sealed.
<br /> TOTAL 18,295 SF R provided that will operate the air curtain with the opening and
<br /> ` + O I L - J RESIDENT t r�°"i i penetrations shall be sealed in the same manner or taped or Exceptions: closing of the door.Air curtains and their controls shall comply with
<br /> ` PAT1O I0 I covered with moisture vapor-permeable wra in material. Sealing+ ` C RRI jwrapping 1.Door openings required to comply with 715 or 715.4 of the Section C408.2.3
<br /> . I I materials shall be appropriate to the construction materials being International Building Code.
<br /> I _ 8. Building entrances in buildings that are less than four stories
<br /> ��. + WIN pc;�p - sealed and shall be securely installed around the penetrations so
<br /> a II 2.Doors and door openings required to comply above grade and less than 10,000 square feet in area.
<br /> A.A. A. as not to dislodge, loosen or otherwise impair the penetrations
<br /> I -II'°� with UL 1784 by the International Building Code. 9. Elevator doors in parking garages provided that the elevators
<br /> + % I ability to resist positive and negative pressure from wind, stack
<br /> (���\\+. + I I -II- II I effect, and mechanical ventilation. Sealing of concealed fire C402.5.5 Air intakes, exhaust openings, stairways and shafts. Stairway have an enclosed lobby at each level of the garage. bethany
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<br /> 1`\Y I _ ( ROOM R I sprinklers, where required, shall be in a manner that is enclosures, elevator shaft vents and other outdoor air intakes and 10.Entrances to semi-heated spaces.
<br /> ` '°"I recommended b the manufacturer. Caulking or other adhesive exhaust openings inte integral to the building envelope shall be provided with
<br /> ` �� IIH+III + I Y gg g p P C402.5.8 Recessed lighting. Recessed luminaires installed in the building
<br /> + L - - - - _ - .-I RESIDER RESIDENT I sealants shall not be used to fill voids between fire sprinkler cover dampers in accordance with Section C403.2.4.3. thermal envelope shall be all of the following:
<br /> `+ 11 II II I)1- lRODMI I plates and walls or ceilings. C402.5.7 Vestibules.All building entrances shall be protected with an 1. IC Rated. skilled nursing
<br /> `1 ++ '' - Infirm' .1 L _ _ 4. Recessed lighting fixtures shall comply with Section C402.5.8. enclosed vestibule,with all doors opening into and out of the vestibule 2. Labeled as having an air leakage rate of not more than 2.0 cfm
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<br /> � "" Where similar objects are installed which penetrate the air barrier, equipped with self-closing devices.Vestibules shall be designed so that additions
<br /> :r g g (0.944 Us) when tested in accordance with ASTM E 283 at a 1.57
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<br /> '- ,, Li=i .4 _ t i a provisions shall be made to maintain the integrity of the air barrier. in passing through the vestibule it is not necessary for the interior and psi(75 Pa) pressure differential.
<br /> ' `IIir CL T3L. 5. Construction documents shall contain a diagram showing the exterior doors to open at the same time.The installation of one or more
<br /> + I 3. Sealed with a gasket or caulk between the housing and interior
<br /> + I ® building's pressure boundary in plan(s) and section(s) and a revolving doors in the building entrance shall not eliminate the
<br /> wall or ceiling covering. 2235 Lake Heights Drive
<br /> I , calculation of the area of the pressure boundary to be considered requirement that a vestibule be provided on any doors adjacent to
<br /> ' DONF R NCE RESIDENT RESIDENT RESIDENT RESIDENT in the test. revolving doors. For the purposes of this section, "building entrances"
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<br /> ,., ` I ! r I I-1 (�! s� r"� shall include exit-only doors in buildings where separate doors for Everett, WA 98208
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<br /> 1. SEE A2.01 REFERENCE PLAN FOR WHOLE BUILDING PLAN ( w I I B of a ro 2. SEE A8 SHEETS FOR EXTERIOR DETAILS,A9 SHEETS FOR - fig y
<br /> INTERIOR AND SMOKE BARRIER DETAILS,A10 SHEETS I
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<br /> I FLOOR 6,901 SF o
<br /> WALLS 3,889 SF
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<br /> 4 ROOF 6,901 SF 0
<br /> I TOTAL 17,691 SF d V i;
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<br /> i `` r SECTION 'C' (SOUTH)
<br /> TYPICAL AIR BARRIER SECTION DIAGRAM I - Co I- - SKILLED NURSING ADDITION 7534
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<br /> �' ,, .», id Mat I ! Li I I Ion 18.03-01
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<br /> N. eI 12/21/2018
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<br /> AIR BARRIER DIAGRAM TYPICAL AIR BARRIER SECTION DIAGRAM SOUTH ADDITION a. - AIR BARRIER PLAN DIAGRA /` i CS 1 ' 04
<br /> 6 SOURCE: BUILDING SCIENCE CORPORATION C-3) 1/16" = 1'-0" I 1/16°= 1'-0° t / I
<br /> i 1 I _ ,/ ': I COPYRIGHT© 2019 shoesmith cox architects
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