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All ideas, drawings,specifications shown herein are the <br />property of West Coast Design Group and shall not be <br />used, copied, reproduced, or disclosed to any person, firm <br />or corporation, without the written consent of West Coast <br />Design Group. Any infringement will be subject to legal <br />action. The contractor shall verify and be responsible for all <br />dimensions and conditions on the job and notify this office of <br />any variations from dimensions and conditions shown <br />herewith. Written dimensions take precedence over scaled <br />dimensions. <br />Mark Transmittal Set Date Description <br />01 <br />02 <br />12/19/2024 <br />3/14/2025 <br />Planning Corr. R1 <br />Building Corr. <br />SHEET TITLE <br />A-3 <br />SHEET 14 <br />PROJECT NO: <br />STATUS: <br />DRAWN BY: <br />CHK'D BY: <br /> <br /> <br />PROJECT: <br />CLIENT: <br />PLOT DATE: 3/14/2025 <br /> 52-24 <br />PLAN CHECK#:101122356 <br /> C <br />: <br />\ <br />U <br />s <br />e <br />r <br />s <br />\ <br />j <br />e <br />r <br />r <br />y <br />\ <br />D <br />o <br />c <br />u <br />m <br />e <br />n <br />t <br />s <br />\ <br />D <br />r <br />a <br />w <br />i <br />n <br />g <br />s <br />\ <br />R <br />e <br />s <br />i <br />d <br />e <br />n <br />t <br />i <br />a <br />l <br />\ <br />S <br />a <br />n <br />t <br />a <br /> <br />An <br />a <br /> <br />Gr <br />i <br />s <br />e <br />t <br /> <br />PI <br />\ <br />C <br />D <br />\ <br />S <br />a <br />n <br />t <br />a <br /> <br />A <br />n <br />a <br /> <br />G <br />r <br />i <br />s <br />e <br />t <br /> <br />P <br />I <br />. <br />p <br />l <br />n <br /> Submittal <br /> <br />Roof Plan <br />ADU <br />3110 & 3112 S Griset Pl <br />Santa Ana, CA 92704 <br />Matthew Mallari & <br />Natalie Nguyen <br />PLANNING - DESIGN <br />41055 CHACO CANYON ROAD <br />MURRIETA CA 92562 <br />WEST COAST <br />DESIGN GROUP <br />3 <br />A-6 <br />1 <br />A-6 <br />2 <br />A-6 <br />4 <br />A-6 <br />1'-6" <br />1' <br />- <br />6 <br />" <br />1' <br />- <br />6 <br />" <br />1'-6" <br />4:12 <br />SLOPE <br />4:12 <br />SLOPE <br />4:12 <br />SLOPE <br />4:12 <br />SLOPE <br />4:12 <br />SLOPE <br />4:12 <br />SLOPE <br />LINE OF WALLS BELOW <br />CLASS 'A' ASPHALT <br />SHINGLE ROOF OVER <br />(2) LAYERS OF 15# <br />ROOFING FELT OVER <br />SHEATHING. <br />RI <br />D <br />G <br />E <br />TYPICAL UNDERLAYMENT <br />TYP. <br />TYP. <br />PROVIDE (4) EAVE VENTS <br />EVENLY SPACED AROUND ROOF <br />(3) ATTIC VENTS - SEE <br />NOTES THIS SHEET <br />VERIFY OVERHANG TO <br />MATCH WITH MAIN <br />RESIDENCE, TYP. <br />4: <br />1 <br />2 <br />SL <br />O <br />P <br />E <br />4: <br />1 <br />2 <br />SL <br />O <br />P <br />E <br />02 <br />SCALE: 1/4" = 1'-0"1 Roof Plan <br />1. THE NET FREE VENTILATING AREA SHALL NOT BE LESS THAN: <br /> a. 1/150 OF THE ATTIC SPACE OR <br /> b. 1/300 PROVIDED A CLASS I OR II VAPOR BARRIER IS INSTALLED <br /> ON THE WARM SIDE OF THE CEILING OR <br /> c. 1/300 PROVIDED THAT AT LEAST 50% AND NOT MORE THAN 80% <br /> OF THE REQUIRED VENTILATION AREA MUST BE LOCATED AT LEAST <br /> 3' ABOVE EAVE OR CORNICE VENTS WITH THE BALANCE PROVIDED <br /> BY EAVE OR CORNICE VENTS. <br />2. EAVE OR CORNICE VENT OPENINGS SHALL NOT BE LOCATED <br />WITHIN 3' LATERALLY ABOVE WINDOWS OR DOORS OF THE STORY <br />BELOW. <br />3. ALL VENTS SHALL HAVE GALVANIZED INSECT SCREENS WITH 8 MESH <br />PER INCH MINIMUM. <br />ATTIC VENTILATION (NET FREE): <br />TOTAL ATTIC VENTILATION REQUIRED = 354 SQ. IN. <br />TOTAL ATTIC VENTILATION PROVIDED = 396 SQ. IN. <br />TOTAL ATTIC SPACE FOR THE ROOF (REQUIRED) =738 SQ FT. X 144 X 1/300 = 354 SQ. IN <br />OF VENTILATION REQUIRED. <br />(4) 6X15 EAVE VENTS (45 NET AREA) = 180 SQ. IN. <br />(3) ROOF VENTS O'HAGIN - (72 NET AREA) = 216 SQ. IN. <br />1. ALL ROOFING MATERIALS, UNDERLAYMENT, FASTNERS AND FLASHING MATERIAL SHALL BE INSTALLED PER <br />MANUFACTURER'S DIRECTION OR PER TRADE STANDARDS; WHICHEVER IS MORE STRINGENT. <br />2. ALL VALLEYS SHALL BE FLASHED. <br />3. ALL JUNCTURES BETWEEN WALLS AND ROOFS SHALL BE FLASHED. IF THE FLASHING IS NOT MADE OF A COPPER MATERIAL, <br />THE FLASHING SHALL BE PRIMED AND PAINTED TO MATCH THE ADJACENT SURFACE. <br />4. ALL ROOF PENETRATIONS SHALL BE PROPERLY FLASHED AND SEALED. THE EXPOSED METAL SHALL BE PRIMED AND <br />PAINTED TO MATCH ROOFING MATERIAL.EFORE PROCEEDING. <br />5. ALL EDGE OF ROOFS SHALL BE FLASHED WITH A METAL FLASHING. METAL FLASHING THAT IS NOT COPPER SHALL BE <br />PRIMED AND PAINTED TO MATCH THE FASCIA. <br />6. ANY CONFLICTS FOUND ON THE PLAN SHALL BE BROUGHT TO THE ATTENTION OF THE OWNER OR DESIGNER. <br />7. ALL WORK SHALL CONFORM TO BOTH LOCAL AND STATE CODES. <br />ROOFING MATERIAL INSTALLATION <br />1. THE GENERAL CONTRACTOR SHALL INSTALL THE ASPHALT SHINGLES (CLASS 'A') FOLLOWING ACCEPTED STANDARD <br />PRACTICE. <br />2. THE UNDERLAYMENT SHALL BE TYPE I (15#) ASPHALT SATURATED ROOFING FELT. ONE LAYER SHALL BE INSTALLED OVER A <br />SOLID ROOFING DECK PER ACCEPTED ROOFING STANDARDS. ALL HIPS AND VALLEYS SHALL BE PROPERLY COVERED. <br />3. ORGANIC ASPHALT SHINGLES SHOULD MEET ASTM D225, "STANDARD SPECIFICATION FOR ASPHALT SHINGLES (ORGANIC <br />FELT) SURFACED WITH MINERAL GRANULES." <br />4. FIBERGLASS ASPHALT SHINGLES SHOULD MEET ASTM D3462, "STANDARD SPECIFICATION FOR ASPHALT SHINGLES MADE <br />FROM GLASS FELT AND SURFACED WITH MINERAL GRANULES." <br />5. VALLEY FLASHINGS SHALL BE NOT LESS THAN 0.019-INCH (NO. 26 GALVANIZED SHEET GAGE) CORROSION-RESISTANT <br />METAL INSTALLED OVER A 36-IN. WIDE UNDERLAYMENT CONSISTING OF ONE LAYER OF 72-POUND MINERAL-SURFACED NON- <br />PERFORATED CAP SHEET MEETING ASTM D3909 RUNNING THE FULL LENGTH OF THE VALLEY. (705A.3 CBC; R337.5.3 CRC) <br />ROOF VENTILATION <br />1. ALL ROOF VENTS SHALL BE INSTALLED PER MANUFACTURERS DIRECTIONS. PAINT TO MATCH ROOFING MATERIAL IF THE <br />COLOR OF THE VENT DOES NOT MATCH. <br />2. SEE THE ROOFING CALCULATION ON THIS PAGE FOR NUMBER OF VENTS. <br />3. SEE ROOFING PLAN FOR LOCATION OF VENTS. <br />4. FLASH ALL VENTS IN ORDER TO PROVIDE A LEAK PROOF CONNECTION. <br />5. EAVE VENTS SHALL BE INSTALLED PER MANUFACTURERS' DIRECTION. PAINT TO MATCH ADJACENT SURFACE.