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ROOF VENT CALCULATIONS-AREA 1 ROOF VENT CALCULATIONS-AREA 2 WN
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(x)=AREA OF SLOPED ROOF 2,211 SO.Fi. (x)=AREA OF SLOPED ROOF 2,211 S0.FT. PRO ILES AND DESIGN ARE TO BE PROVIDED BY
,AND ARE TO
SOFFIT VENTILATED PERIMETER 63.5'LINEAR FT. SOFFIT VENTILATED PERIMETER 63.5UNEAR FT. • ENGINEER
NET REFER TO ELEVNTIONS FOR HEEL HEIOHTS,
FREE FflEE VENTILATED AREA 1,062 SQ.IN. (y)=NET FREE VENTILATED AREA 1062 SQ IN.
(x)(144)1300=y (x)(144)/300=y •A OMBINAIONO 11DIE AND HAVE BEEN
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A COMBINATION OF RIDGE AND AVE BEEENPRMAID BE T OSHO IN SOME AREAS.
531 SQ.IN.-HIGH VENTING NEEDED 531 SQ IN.-HIGH VENTING NEEDED PROVIIDE EuGHT EXCESSIVE
MORE LOW VENT THAN HIGH VENT
NET FREE VENTILATED AREA/2 531 SO.IN.-LOW VENTING NEEDED NET FREE VENTILATED AREA 12 531 SO.IN.-LOW VENTING NEEDED •REFER TO Az W FOR ATTIC ACCESS DOOR DETAILS
HIGH RIDGE VENT=1fV LINEARF00T 30 LINEAR FEET OF RIDGE VENT=540 SQ IN. HIGH RIDGE VENT=1B/UNEAR FOOT 30 LINEAR FEET OF RIDGE VENT=W SO IN.
LOW VENT LOW VENT
(z)=(SOFFIT VENTILATED PERIMETERE5 SO.IN.) 317.5 SQ.IN.PROVIDED FROM SOFFITS (z)=(SOFFIT VENTILATED PERIMETER((5 SDIN) 317.5 SQ.IN.PROVIDED FROM EGRETS
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ROOF VENT CALCULATIONS-AREA 3 ROOF VENT CALCULATIONS-AREA 4
Ix)=AREA OF SLOPED ROOF 2,211 SO.FT. (x)=AREA OF SLOPED ROOF 2,211 SO.FT. W-
SOFFIT VENTILATED PERIMETER 63.5'LINEAR FT. SOFFIT VENTILATED PERIMETER 63.5'LINEAR FT. pp
(y)=NET FREE VENTILATED AREA (y)=NET FREE VENTILATED AREA a N
(x)(144)/300=y 1,062 SQ.IN. (x)(144)/3UD=y 1,062 SO,IN.
NET FREE VENTILATED AREA 12 531$0.IN.-HIGH VENTING NEEDED NET FREE VENTILATED AREA l2 531 SQ.IN.-HIGH VENTING NEEDED
531 SO.IN.LOW VENTING NEEDED 531 SQ.IN.-LOW VENTING NEEDED DATE
HIGH RIDGE VENT=18l LINEAR FOOT 30 LINEAR FEET OF RIDGE VENT=5405O IN. HIGH RIDGE VENT=IBI LINEAR FOOT 30 LINEAR FEET IF RIDGE VENT=540 SO IN. j
LOW VENT LOW VENT DO 01 -21 -20
(z1=(SOFFIT VENTILATED PERIMETER95 SO.IN.) 317.5SQ.IN.PROVIDED FROM SOFFITS (z)=(SOFFIT VENTILATED PERIMETER)(5 SQ.IN.) 317.5SQ.IN.PROVIDED FROM SOFFITS N
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(BASED ON F ABER CEMENT SOFFIT VEND (5)50'VENTS NEEDED (BASED ON 33-FIBER CEMENTSOFFIT VEND (5)50"VENTSNEEDEO
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v SHEET NUMBER
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A3-23
BUILDING'C'
1 BUILDING TYPE U ROOF PLAN a ROOF PLAN
SCALE:1/8"=V-0" CD