8102 EVERGREEN WAY 2020 EVERETT 4 CORNERS - BLDG A Plans 2025-06-20

a ATTIC VENTILATION CALCULATIONS ATTIC AREA:2,575,008 S.I(17,882 SF) ROOF NOTES m CEILING ASSEMBLY AT BOTTOM CHORD OF ROOF '11` TRUSSES INCLUDES CLASS II VAPOR BARRIER. 1. SEE STRUCTURAL DRAWINGS 4v REQUIRED VENTILATION @ 1/300(IBC SECTION 1203.2 FOR ROOF FRAMING. EXCEPTION 2):8,583 S.I.(59.6 S.F.) 2. ALL ROOFING TO BE CLASS OHNSON BRAUNDIxc. a MINIMUM PER IBC SECTION 1505 AND 15200 52nd Ave.South EAVE VENTILATION:770'L.F.(110,880 L.I.) TABLE a 1505.1. Suite 300 BIRD BLOCKING WITH THREE 2"DIAMETER HOLES SeatOe,WA 98188 PER TRUSS BAY W/1/8"MESH SCREEN 2.50 S.I. 3. ALL ROOF SLOPES ARE 4 1/8"/FT.U.N.O phone 206.766.8300 (.0174 S.F.)NFA PER NOTCH.SEE DIAGRAM 4/A500 4. ALL ROOF OVERHANGS ARE V-0"U.N.O vmvjohnsonhmund- 3.75 S.I.(.026 S.F.)NET FREE AREA PER LINEAL 5. DRAFTSTOPS ARE NOT REQUIRED ARCHITECTURE FOOT=19,664 S.I.(13.66 S.F.)TOTAL. IN BUILDINGS EQUIPPED WITH AUTOMATIC SPRINKLER SYSTEMS PER IBC SECTION INTERIOR DESIGN CONTINUOUS SOFFIT VENTILATION:261 L.F.(37,584 L.I.) 903.3.1.1(NFPA 13) Gregg L.All—, • STRIP VENT WITH 2"WIDE ON BALCONY CEILING Jeffrey A.Williams, WITH 1/8"MESH SCREEN.NET FREE AREA PER 6. PER IBC SECTION 708.4,IN LINEAL FOOT=4,885 S.I.(33.9 S.F.) COMBUSTIBLE CONSTRUCTION WHERE THE FIRE PARTITIONS ARE NOT REQUIRED CONTINUOUS RIDGE VENTILATION:689 L.F. TO BE CONTINUOUS TO THE SHEATHING, • COR-A-VENT REVOLUTION @ 12 S.I.NET PER FT.= DECK OR SLAB,THE SPACE BETWEEN THE 544.45*12 S.I./FT=6,88.5 S.I.(47.8 S.F.)TOTAL CEILING AND THE SHEATHING,DECK OR SLAB ABOVE SHALL BE FIRE BLOCKED OR TOTAL PROVIDED VENTILATION:19,664 S.I+4,886 S.I+ DRAFTSTOPPED IN ACCORDANCE WITH IBC 19,66 S.I.=13,737 S.I.(95 S.F.) SECTIONS 718.2 AND 718.3 AT THE • EAVE&SOFFIT VENTS:(19,664+4,885/2,575,008)* PARTITION LINE.EXCEPTION#6: 100=79% FIREBLOCKING OR DRAFTSTOPPING IS NOT • RIDGE VENTS:(6,885/2,575,008)*100=80% REQUIRED AT THE PARTITION LINE IN BUILDINGS EQUIPPED WITH AN AUTOMATIC VENTILATION ALSO MEETS IBC SECTION 1203.2 SPRINKLER SYSTEM INSTALLED EXCEPTION 1 THROUGHOUT IN ACCORDANCE WITH IBX ass. SECTION 903.3.1.1.,.PROVIDED THAT REGISTERED AUTOMATIC SPRINKLERS ARE INSTALLED ARCHITECT IN COMBUSTIBLE FLOOR/CEILING AND - ROOF/CEILING SPACES. 7. DRAFTSTOPPING MATERIALS TO exaev>aTxors wnJJAM BE 1/2"GYP.SHEATHING OR 1/2"PLYWOOD sTATe av wnswxcTox OR OSB SHEATHING PER IBC SECTION 718.3.1. STAMP 8. PER IBC SECTION 1203.2 EXCEPTION: THE NET FREE CROSS-VENTILATION AREA SHALL BE PERMITTED TO BE REDUCED TO k 11300 PROVIDED BOTH OF THE FOLLOWING CONDITIONS ARE MET: 1.IN CLIMATE ZONES 6,7,AND 8,A CLASS I e E OR II VAPOR RETARDER IS INSTALLED ON o THE WARM-IN-WINTER SIDE OF THE CEILING. 2.AT LEAST 40 PERCENT AND NOT MORE THAN 50 PERCENT OF THE REQUIRED VENT IN ru G AREA IS PROVIDED BY a VENTILATORS LOCATED IN THE UPPER o$ PORTION OF THE ATTIC OR RAFTER SPACE. UPPER VENTILATORS SHALL BE LOCATED 2-HOUR STAIR ENCLOSURE FRAMING CONTINUOUS NOT MORE THAN 3 FEET BELOW THE RIDGE UNDERSIDE OF ROOF SHEATHING. 5 OR HIGHEST POINT OF THE SPACE, A311 MEASURED VERTICALLY,WITH THE BALANCE STAIR ENCLOSURE ROOF FRAMING A.a A412 A.B OF THE VENTILATION PROVIDED BY EAVE OR TO BE ENTIRELY INDEPENDENT OF MAIN ROOF FRAMING CORNICE VENTS.WHERE THE LOCATION OF 1 WALL OR ROOF FRAMING MEMBERS HOOD FOR STAIRWELL CONFLICTS WITH THE INSTALLATION OF 2 PRESSURIZATION FAN UPPER VENTILATORS,INSTALLATION MORE THAN 3 FEET BELOW THE RIDGE OR `u HIGHEST POINT OF THE SPACE SHALL BE d iv 0 o= PERMITTED. iv p tO= 9. BATHROOMS SHALL BE x r 0 MECHANICALLY VENTILATED IN N O ACCORDANCE WITH THE IMC PER IBC o a SECTION 1203.5.2.1. 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