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4" <br /> <br />/ <br /> <br />1 <br />2 <br />" <br />4" / 12"4" / 12" <br />4" / 12" <br />4" <br /> <br />/ <br /> <br />1 <br />2 <br />" <br />4" <br /> <br />/ <br /> <br />1 <br />2 <br />" <br />4" / 12" <br />4" <br /> <br />/ <br /> <br />1 <br />2 <br />" <br />4" <br /> <br />/ <br /> <br />1 <br />2 <br />" <br />4" / 12" <br />4" / 12" <br />4" <br /> <br />/ <br /> <br />1 <br />2 <br />" <br />4" / 12" <br />(E) ROOF <br />(N) ROOF <br />2 <br />AD <br />Typ <br />SO <br />F <br />F <br />I <br />T <br /> <br />V <br />E <br />N <br />T <br />I <br />N <br />G <br />17 <br />' <br /> <br />- <br /> <br />7 <br />" <br />14 <br />' <br /> <br />- <br /> <br />4 <br />" <br />31 <br />' <br /> <br />- <br /> <br />8 <br />" <br />SO <br />F <br />F <br />I <br />T <br /> <br />V <br />E <br />N <br />T <br />I <br />N <br />G <br />SO <br />F <br />F <br />I <br />T <br /> <br />V <br />E <br />N <br />T <br />I <br />N <br />G <br />SO <br />F <br />F <br />I <br />T <br /> <br />V <br />E <br />N <br />T <br />I <br />N <br />G <br />2 <br />PROVIDE APPROX. 40 –45 LINEAR FEET <br />TO ACHIEVE MIN. ≈ 399 IN² NFVA <br />2 <br />Finished Floor <br />0' - 0" <br />Ceiling Height <br />8' - 0" <br />Roof Peak <br />14' - 6" <br />R-15 <br />PER T24 <br />R-30 <br />PER T24 <br />Finished Grade <br />-0' - 8" <br />9 <br />AD <br />2 <br />Finished Floor <br />0' - 0" <br />Ceiling Height <br />8' - 0" <br />Roof Peak <br />14' - 6" <br />1 <br />AD <br />1 <br />1 <br />R-15 <br />PER T24 <br />R-30 <br />PER T24 <br />Typ <br />2 <br />AD <br />Finished Grade <br />-0' - 8" <br />8 <br />AD <br /> 3/16" = 1'-0" <br />Roof Plan2 <br />Scale <br />THESE PLANS ARE THE <br />PROPERTY OF MICHAEL'S <br />DRAFTING LLC. THEY ARE <br />PROVIDED AS A SERVICE AND <br />ARE PROTECTED BY <br />COPYRIGHT. ANY COPYING, <br />REPRODUCTION, OR <br />REDISTRIBUTION OF THESE <br />PLANS WITHOUT EXPLICIT <br />WRITTEN PERMISSION FROM <br />THE OWNER IS STRICTLY <br />PROHIBITED. <br />AS NOTED <br />Michael Barber <br />michaelsdrafting <br />(909) 486-3789 <br />Drafter / Designer <br />Rohit Grandhi <br />Grandhi Consults. <br />(908) 858-6325 <br />Structural Engineer <br />Oscar Bautista <br />T24 PRO <br />(626) 434-0930 <br />T24 Consultant <br />3/3/2026 <br />3/ <br />3 <br />/ <br />2 <br />0 <br />2 <br />6 <br /> <br />1 <br />: <br />1 <br />3 <br />: <br />0 <br />5 <br /> <br />P <br />M <br />A05 <br />ADU: 805 E <br />Clemensen <br />Ave Unit# 2 <br />ADU PROJECT <br />Cross Sections <br />& Roof <br /> 3/8" = 1'-0" <br />Section 13 <br /> 3/8" = 1'-0" <br />Section 21 <br />FLOOR PLAN NOTES <br />~ADU ROOF SHALL MATCH EXISTING SFR~ <br />ROOF MANUFACTURER DETAILS: GAF TIMBERLINE SERIES, <br />CLASS A ASPHALT SHINGLE, ICC-ES EVALUATION REPORT <br />ESR-1475. <br />MATERIAL: ASPHALT SHINGLES WILL BE USED AS THE <br />PRIMARY ROOFING MATERIAL. <br />UNDERLAYMENT: ROOFING FELT UNDERLAYMENT WILL BE <br />INSTALLED BENEATH THE ASPHALT SHINGLES FOR ADDED <br />WATERPROOFING. <br />INSTALLATION: SHINGLES, UNDERLAYMENT, AND FLASHINGS <br />MUST BE INSTALLED IN ACCORDANCE WITH IBC SECTION <br />1507.2 OR IRC SECTION R905.2, EXCEPT AS NOTED IN THE <br />RELEVANT REPORT. INSTALLATION WILL FOLLOW <br />MANUFACTURER INSTRUCTIONS AND LOCAL BUILDING CODES. <br />FLASHING & FASTENERS: FLASHING WILL BE APPLIED AT <br />PENETRATIONS, VALLEYS, AND SIDEWALLS. GALVANIZED <br />ROOFING NAILS WILL SECURE THE SHINGLES TO THE ROOF <br />DECK. <br />COMPLIANCE: INSTALLATION MUST COMPLY WITH §R905 CRC <br />AND ALL APPLICABLE LOCAL CODES. <br />ATTIC VENT NOTES <br />LOAD CALCS <br />LOAD CALCULATION SUMMARY (NEC 220) <br />MAIN RESIDENCE (2,016 SF, MIXED FUEL): <br />• GEN. LIGHTING & RECEPTACLES: 6,048 VA <br />• APPLIANCES, HVAC, MISC.: 22,000 VA <br />• SUBTOTAL: 28,048 VA → ~117A @ 240V <br />ADU (705 SF, ALL-ELECTRIC): <br />• GEN. LIGHTING & RECEPTACLES: 2,115 VA <br />• RANGE, DRYER, HVAC, WH, MISC.: 20,625 VA <br />• SUBTOTAL: 22,740 VA → ~95A @ 240V <br />COMBINED LOAD ESTIMATE: <br />• TOTAL CONNECTED LOAD: ~50,788 VA <br />• DEMAND-ADJUSTED LOAD: ~41,000 VA <br />• ESTIMATED AMPERAGE: ~171A @ 240V <br />PROPOSED SERVICE: <br />• EXISTING 200A MAIN PANEL TO REMAIN. <br />• NEW 100A SUBPANEL TO SERVE THE FULLY ELECTRIC ADU, <br />FED FROM MAIN PANEL. <br />• LOAD CALCULATIONS CONFIRM EXISTING SERVICE CAPACITY <br />IS SUFFICIENT. <br />ATTIC / ROOF AREA ≈ 716 SF <br />REQUIRED NET FREE VENT AREA (NFVA): <br />716 SF ÷ 150 = 4.77 SF NFVA REQUIRED <br />4.77 SF × 144 = 687 IN² NFVA REQUIRED (MIN.) <br />HIGH VENTING: <br />– (4) ROOF VENTS (O ’HAGIN OR EQUAL / GREATER), <br />INSTALLED WITHIN 3'-0" OF RIDGE <br />– ≈ 72 IN² NFVA EACH <br />– TOTAL HIGH VENTING PROVIDED ≈ 288 IN² NFVA <br />LOW VENTING: <br />– CONTINUOUS / LINEAR SOFFIT VENTS (OR EQUIVALENT) <br />PROVIDED ALONG EAVE LINE <br />– PROVIDE APPROX. 40 –45 LINEAR FEET TO ACHIEVE MIN. ≈ <br />399 IN² NFVA <br />TOTAL PROVIDED NFVA ≈ 687 IN² (MEETS 1/150 <br />REQUIREMENT). <br />VENTILATION IS DISTRIBUTED BETWEEN HIGH AND LOW <br />LOCATIONS TO <br />PROVIDE CONTINUOUS AIRFLOW IN ACCORDANCE WITH CRC <br />R806.2. <br />FINAL VENT TYPES, SIZES, AND NFVA RATINGS SHALL MATCH <br />MANUFACTURER SPECIFICATIONS. <br />FINAL VENT LOCATIONS AND EXACT COUNTS MAY BE <br />ADJUSTED IN THE FIELD, <br />PROVIDED THE MINIMUM REQUIRED 687 IN² TOTAL NFVA AND <br />HIGH/LOW DISTRIBUTION ARE MAINTAINED. <br />1 <br />2 <br />No.Description Date <br />1 BLDG PC1 11/19/2025 <br />2 BLDG PC2 1/30/2026