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<br />ATTIC VENTILATION CALCS ROOF PLAN NOTES
<br />ALL VENTILATION CALCULATIONS ARE BASED ON: 1. TYPICAL ROOFING DETAILS ARE INTENDED TO SHOW GENERAL DESIGN INTENT
<br />AND SHOULD BE VERIFIED AGAINST MANUFACTURER'S RECOMMENDATIONS TO
<br />®HIGH AND/OR LOW VENTS (FLAT ROOF): 24"X24" R.O. GRAVITY VENT BY FLASHCO OR & REQUIREMENTS FOR EACH CONDITION. SEE SHEETS D 61.0 D 61.1
<br />i APPROVED EQUAL WITH 520 S.I. NET FREE VENTILATION AREA PER VENT.
<br />L___J 2. ROOF INSULATION SHALL FILL MAIN ROOF FRAMING CAVITIES AND ALL CAVITIES OF ROOF
<br />HIGH VENTS (FLAT ROOF PARAPET): 14"x18" "FLASHVENT" PARAPET WALL VENTS BY X CRICKET FRAMING.
<br />FLASHCO OR APPROVED EQUAL WITH 110 S.I. NET FREE VENTILATION AREA PER VENT. D 61.0 3. PER CBC SECTION 718.4. EXCEPTION, DRAFTSTOPPING IS NOT REQUIRED IN BUILDINGS
<br />LOW VENTS (SLOPED ROOF EAVES): FRIEZE BLOCK WITH (3) 2" DIAMETER HOLES EVERY EQUIPPED THROUGHOUT WITH AN AUTOMATIC SPRINKLER SYSTEM IN ACCORDANCE WITH
<br />3RD TRUSS BAY WITH WITH 3.14 S.I. NET FREE VENTILATION AREA PER LINEAR FOOT. NFPA 13.
<br />4. ATTIC ACCESS NOT REQUIRED WHERE VERTICAL HEIGHT IN ATTIC IS LESS THAN 30".
<br />®HIGH AND/OR LOW VENTS (SLOPED ROOF): LOW PROFILE O'HAGIN STANDARD LINE,
<br />CHARCOAL COLOR OR APPROVED EQUAL WITH 72 S.I. NET FREE VENTILATION AREA 5. VERIFY SIZE AND LOCATION OF ALL ROOF PENETRATIONS AND EQUIPMENT WITH
<br />PER VENT. STRUCTURAL, MECHANICAL AND PLUMBING DWGS.
<br />6. AS REQUIRED BY CBC SEC. 1015.6 : 42" MIN. GUARDS SHALL BE PROVIDED WHERE
<br />APPLIANCES, EQUIPMENT, FANS, ROOF HATCHES OR OTHER COMPONENTS THAT REQUIRE
<br />ROOF AREA #1 : ROOF AREA #2 : SERVICE ARE LOCATED WITHIN 10 FEET OF A ROOF EDGE OR OPEN EDGE OR OPEN SIDE OF
<br />A WALKING SURFACE AND SUCH EDGE OR OPEN SIDE IS LOCATED MORE THAN 30 INCHES
<br />o REQUIRED VENTILATION REQUIRED VENTILATION ABOVE THE FLOOR, ROOF OR GRADE BELOW. THE GUARD SHALL BE CONSTRUCTED SO AS
<br />3,054 S.F. / 150 = 20.36 X 144 = 2,91. 151 S.F. / 150 = 1 X 144 = 145 S.I. TO PREVENT THE PASSAGE OF A SPHERE 21 INCHES IN DIAMETER.
<br />LOW = 50% X 2,932 = 1,466 S.I. �\ LOW = 50% X 145 = 73 S.I.
<br />7. ROOFING TO BE CLASS'A' ROOFING.
<br />HIGH = 50% X 2,932 = 1,466 S.I. 1 HIGH = 50% X 145 = 73 S.I.
<br />PROVIDED VENTILATION PROVIDED VENTILATION 8. ROOF TRUSS DEPTH ASSUMED TO BE 24" MIN. VERIFY WITH TRUSS DESIGNER.
<br />LOW (FLAT) = 3 VENTS X 520 S.I. = 1,560 S.I. LOW (EAVES) = 33.6 LF X 3.14 S.I. = 106 S.I.
<br />HIGH (FLAT) = 3 VENTS X 520 S.I. - 1,560 S.I. HIGH (SLOPED) = 2 VENTS X 72 S.I. - 144 S.I. 9• PENETRATIONS SHALL BE 18" MIN. FROM VALLEYS, HIPS, RIDGES OR PARAPETS UNLESS
<br />T rrrrl-ryl I i APPROVED BY ROOFING MANUFACTURER.
<br />ROOF AREA #3 :' I IIII-
<br />REQUIRED VENTILATICpPi -- 10. PARAPETS AND TALL ROOF WALLS MAY REQUIRE BRACING- REFER TO STRL DRAWINGS
<br />---------------- - AND COORDINATE WITH TRUSS DESIGNER.
<br />6,648 S.F. / 150 = 44.32 X 144 = 6,382 S.I..
<br />LOW - 50% X 6,382 - 31191 S.I. 11. SEE EXTERIOR BUILDING MAINTENANCE PLANS FOR ADDITIONAL INFORMATION.
<br />IGH = 50% X 6,382 = 3,191 S.I.
<br />PROVIDED VENTILATION
<br />LOW (EAVES) = 440 LF X 3.14 S.I. = 1,382 S.I.
<br />LOW (SLOPED) = 26 VENTS X 72 S.I. = 1,872 S.I.
<br />TOTAL LOW = 3,254 S.I.
<br />HIGH (SLOPED) = 10 VENTS X 72 S.I. = 720 S.I.
<br />HIGH (PARAPET) = 24 VENTS X 110 S.I. = 2,640 S.I.
<br />TOTAL HIGH = 3,360 S.I.
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<br />A2-61 A2-70
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<br />SOLAR -READY NOTES
<br />1. THE SOLAR ZONE SHALL COMPLY WITH ACCESS, PATHWAY, SMOKE VENTILATION, AND SPACING
<br />REQUIREMENTS AS SPECIFIED IN TITLE 24, PART 9 OR OTHER PARTS OF TITLE 24 OR IN ANY
<br />REQUIREMENTS ADOPTED BY A LOCAL JURISDICTION.
<br />2. NO OBSTRUCTIONS, INCLUDING BUT NOT LIMITED TO VENTS, CHIMNEYS, ARCHITECTURAL
<br />FEATURES, AND ROOF MOUNTED EQUIPMENT, SHALL BE LOCATED IN THE SOLAR ZONE.
<br />3. SOLAR ZONE MUST BE LOCATED NO CLOSER THAN TWICE THE DISTANCE, MEASURED IN THE
<br />HORIZONTAL PLANE, OF THE HEIGHT DIFFERENCE BETWEEN THE HIGHEST POINT OF THE
<br />OBSTRUCTION AND THE HORIZONTAL PROJECTION OF THE NEAREST POINT OF THE SOLAR ZONE,
<br />MEASURED IN THE VERTICAL PLANE.
<br />4. PROVIDE 2" CONDUIT BETWEEN SOLAR -READY ZONE AND ELECTRICAL ROOM(S).
<br />SOLAR READY CALCULATION:
<br />TOTAL ROOF AREA: XX,XXX SF
<br />REQUIRED SOLAR READY AREA (15% OF TOTAL ROOF AREA): X,XXX SF
<br />PROVIDED SOLAR READY AREA: X,XXX SF
<br />ROOF ASSEMBLIES
<br />DESCRIPTION FIRE RATING DETAIL REFERENCE(S)
<br />ROOF CONSTRUCTION & ASSOCIATED SECONDARY MEMBERS
<br />INTERIOR ROORCEILING (TRUSSES)
<br />EXTERIOR ROOF/CEILING (TRUSSES) 1 HR X/AD-XX, X/AD-XX
<br />INTERIOR ROOF CEILING (JOISTS) 1 HR X/AD-XX, X/AD-XX
<br />EXTERIOR ROOF/CEILING (JOISTS) 1 HR X/AD XX, X/AD XX
<br />1 HR X/AD-XX, X/AD-XX
<br />ROOF PLAN LEGEND
<br />SLOPE ROOF 1/2" PER FOOT MIN
<br />BUILT-UP CRICKET 1/4" PER FOOT MIN X
<br />D-61.0
<br />ROOF MEMBRANE WALKING PAD. 30" WIDE. SECURE TO ROOFING PER
<br />MANUFACTURER'S RECOMMENDATIONS.
<br />L -1
<br />0 ROOF PRIMARY AND OVERFLOW DRAIN X
<br />D-61.0
<br />®� A/C CONDENSER - SEE MECHANICAL
<br />DOWNSPOUT - REFER TO CIVIL DWGS FOR TERMINATIONS AND/OR TIE-IN TO STORM DRAIN
<br />°___• SYSTEM. PROVIDE SPLASH BLOCK AT TERMINATIONS TO GRADE OR LOW ROOFS. SEE
<br />r
<br />ELEVATIONS FOR ADDITIONAL INFORMATION.
<br />FIRE WALL - EXTENDS TO UNDERSIDE OF ROOF SHEATHING, TYP U.N.O. X
<br />�HATCHED AREA INDICATES NO ROOF PENETRATIONS ALLOWED WITHIN D 61.0
<br />I 4'-0" OF THE FIRE WALL
<br />®� ®� EXTERIOR BUILDING MAITENANCE EQUIPMENT AND ANCHORS - REFER TO
<br />STRL & EXTERIOR BUILDING MAINTENANCE DRAWINGS. COORDINATE WITH
<br />TRUSS DESIGN
<br />-�` ROOF HATCH WITH SAFETY RAILING SYSTEM X
<br />KEYNOTES
<br />1❑ ROOFTOP GAS BOILER LOCATION - SEE PLUMBING
<br />MECHANICAL SHAFT - SEE MECHANICAL
<br />El
<br />TRASH CHUTES ❑3
<br />4❑ EQUIPMENT PLATFORM
<br />LINE OF BLDG BELOW
<br />El
<br />CANOPY BELOW
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<br />�7 ROOF HATCH WITH ALTERNATING TREAD DEVICE FROM STAIR SHAFT
<br />KEYPLAN
<br />•
<br />i
<br />Architecture + Planning
<br />17911 Von Karman Ave.
<br />Suite 200
<br />Irvine, CA 92614
<br />ktgy.com
<br />949.851.2133
<br />KTGY Project No: 2017-0934
<br />Project Contact: Debbie Holland
<br />Email: dholland@ktgy.com
<br />Principal: Wil Wong
<br />Project Designer: D. Schoolmeester
<br />Project Director: Debbie Holland
<br />Developer
<br />ED OAK
<br />I VES'1AiEN'I'S
<br />4199 CAMPUS DRIVE
<br />IRVINE, CA 92612
<br />PHONE NO. (714) 342-2502
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<br />It is the clients responsibility prior to or during construction to notify the architect in writing
<br />of any perceived errors or omissions in the plans and specifications of which a contractor
<br />thoroughly knowledgeable with the building codes and methods of construction should
<br />reasonably be aware. Written instructions addressing such perceived errors or omissions
<br />shall be received from the architect prior to the client or clients subcontractors proceeding
<br />' /)
<br />with the work. The client will be responsible for any defects in construction if these
<br />procedures are not followed.
<br />v
<br />SED ARCIII
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<br />* No. C29795
<br />RENEWAL DATE
<br />CN
<br />AUGUST 31, 2023
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<br />License Stamp
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<br />BUILDING B ROOF
<br />PLAN
<br />BUILDING B ROOF PLAN I SCALE: 3/32"=V-01 1
<br />COPYRIGHT n
<br />A2-56
<br />
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