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�� �� s 0 T Fn o- ZONE-1 N ATTIC SPACE ; ° I I' I II ' io 1 ' I' 1 I O. I" I I w a O O ' � T N I LO RIDGE . II 1 I 1 I' I 1'-0" I F1- W N I > 14'-0' RIDGE VENT ' o 1 RIDGE ��,—�� II 4 II I I' 1 I I •I II 11 I 1 1 I 11 /l ' I 1 1 I I I �\e ` J N Ie- "I I 1 I' 1 I I II I I � I� I � I " I y� I I I O I I I ROOF PLAN - ELEV-Al- SCALE: %4'=V-0" ATTIC VENTILATION CALCULATIONS - Al (TRA) General Notes ATTIC VENTILATION REQUIRED UPPER VENTILATION PROVIDED ROOF CRITERIA: • 12" OVERHANG U.N.O. 1/150 Rule Ridge (No Upper Ventilator 1/300 Rule Vent Amt Off -Ridge • PLUMB CUT FASCIA ROOF Req.) (Must Provide Upper Ventilators) (Ft) Amt. PITCH PER ELEVATION Total Ventilation ATTIC Provided SPACE SQ. FT. Total SQ. SQ. FT. SQ. IN. of by Upper SQ. IN. of of vented IN. of of ventilation to Ventilators ventilation vented be provided SQ. IN. of SQ. IN. of See Elev required soffit ventilation soffit by upper Ventilation Ventilation ( ) needed required needed ventilators Main 29.00000 1.000000 Floor 2373 2278 325 1139 81 570 0 573.0 (Zone 1) 435.0 138.0 '"'NOTE"* GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS REQUIRED BY FBC 6th ED. RESIDENTIAL. • **G.C. VERIFY ROOF PITCH** ROOF PITCH VARIES PER SUBDIVISIONS IT IS THE CONTRACTORS RESPONSIBILITY TO VERIFY ROOF SLOPE REQUIREMENTS WITH TRUSS MANUFACTURER. **ELECTRICAL SPECIFICATION NOTES". ELECTRICAL CONTRACTOR MUST VERIFY WITH THE SPECIFICATIONS FOR THE TYPE OF FIXTURE TO BE USED. LIGHT FIXTURES SHOWN ARE FOR LOCATION PURPOSES. Exterior Covering R703.7 Exterior plaster. Installation of these materials shall be in compliance with ASTM C 926 and ASTM C 1063. R703.7.1 Lath. All Lath and lath attachments shall be of corrosion -resistant materials. Attached per ASTM C 1063. R703.7.2 Plaster. Plastering w/ Portland cement plaster shall be not less than three coats when applied over metal lath or wire lath and shall be not less than two coats when applied over masonry, concrete. R703.7.3 Water -Resistive Barriers. Water -resistive barriers shall be installed where cement plaster (stucco) is to be applied over wood -based sheathing, shall include a water -resistive vapor -permeable barrier. The individual layers shall be installed independently such that each layer provides a separate continuous plane and any flashing intended to drain to the water -resistive barrier is directed between the layers. The barriers shall consist of one of the following. 1. Two layers of an approved water resistant barrier material in accordance with R703.2. Z. One layer of an approved water -resistive barrier (paper backed stucco lath) over an approved synthetic house wrap. R703.4 Flashing. 'Approved corrosion -resistant flashing shall be applied O shingle -fashion in a manner to prevent entrCD y of water into the wall cavity or penetration of water to the building structural framing components. Flashing shall be installed at the following locations. • Exterior windowldoor openings. • Intersection of chimneys or other masonry constructions with frame walls. • Under and at the ends of masonry, wood or metal copings and sills, 2373 SQ. FT. RIDGE • Continuously above all projecting wood trim. • Where exterior porches, decks or stairs attach to a wall or floor assembly of wood -frame construction. • At wall and roof intersections • At Built-in gutters. Attic Ventilation Attic Ventilation to be in compliance with the Florida Building Code 6th Edition (2017) Residential R806. The Minimum net free ventilating area shall be 1/150 of the area of the vented space. The ventilating area maybe reduced to 1/300 provided that at least 40% but no more than 50% of the required ventilation is provided in the upper portion of the space to be ventilated. Upper ventilators shall be located no more than 3 feet 15'-0' RIDGE VENT . (measured vertically) below the ridge or highest point of the space , with the balance of the required ventilation provided by save or cornice vents. w "CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN" (Values to be verified with Manufacturer Speafications) O • RIDGE VENTS - 15 S0. IN. OF NET FREE AREA /LINEAR FT. • OFF -RIDGE VENTS - 138 S0. IN. OF NET FREE AREA /UNIT :12� SLOPE04 • SOFFIT VENTS 7 S0. IN. OF NET FREE AREA / SQ. FT. Coastal Flashings All flashing material for coastal locations (ex: within 3,000 feet of the I ocean) shall be corrosion resistant material (ex: zinc and/or stainless steel) and shall be selected for compatibility with adjacent wood ' preserv atives per the manufacturer's recommendations. 5:12 SLOP a General Notes Attic Ventilation Attic Ventilation to be in compliance with the Florida Building Code 6th Edition (2017) Residential R806. The Minimum net free ventilating area shall be 1/150 of the area of the vented space. The ventilating area maybe reduced to 1/300 provided that at least 40% but no more than 50% of the required ventilation is provided in the upper portion of the space to be ventilated. Upper ventilators shall be located no more than 3 feet ,4q��j\��tilltt / I�tCilfl To the best of the Engineer's knowledge, information and belief, the structural plans and specifications contained within these drawings comply with the 2017 Florida Building Code - Residents[ 6th Edition. Engineer's signature and seal Is only for the structural engineering portions of the drawing pages bearing Engineer's signature and seal. W � o � — N � � � N lJL ao 'j tI) W i7 M Qa) � W y �LL 13