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Attic Ventilation Attic Ventilation to be in compliance with the Florida Building Code 5th Edition (2014) Residential R806. VENTED SOFFIT 48 SQ. FT. The Minimum net free ventilating area shall be 1/150 of the area of the vented space. The ventilating area may be 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 CID the space to be ventilated. Upper ventilators shall be located no more than 3 feet measured vertigll below the rid a or hi hest oint of the s ace with the ( Y) p P •'yi;�'y;`' '�. �: y��'�;.'�0 6d b. �: �' : h;: �: ;'�;'�,11 a bw A&W && '�'&•'Y;`•'y;�;: �: &&&I'": &bW: y;�:y�;i.'";`•'hd.W: &d.W' balance of the required ventilation provided by eave or cornice vents. ZONE 3 -CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** '' ::: . •' (Values to be verified with Manufacturer Specifications) • RIDGE VENTS 15 SQ. IN. OF NET FREE AREA J LINEAR FT. t'• • OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT ' ' '•� ATTIC SPACE 275 S Q . FT. t' ' ' • SOFFIT VENTS 7 SQ. IN. OF NET FREE AREA / SQ. FT. • O'HAGIN WEATHERMASTER (Shingle Roof) - 72 SQ. IN. OF NET FREE AREA/ FT. (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 72 = Amount of O'Hagin Vents Needed •,•,� t ;•; • LOMANCO DECK -AIR (Shingle Roof) - 9 SQ. IN. OF NET FREE AREA / FT. **Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 9 = Linear Ft. of Deck -Air Needed) • O'HAGIN (Tile Roof) - 86.25 SQ. IN. OF NET FREE AREA / VENT **Formula:S . Ft. Soffit Needed = . In. Needed / 86.25 = Amount of 0Ha (Q ) x 7 (Sq ' in Vents Needed ) 9 LL. Cn VENTED SOFFIT 50 SQ. FT. t:.::• 00 :. • t•:, Uj t'• W ZONE-4 t.- ;t ATTIC SPACE 2090 SQ. FT. LL ;� t•• ` CV') t '.� t•' LL Cn '.� t•' Q �'� t'• Z U_ t•: ': d '�'� VENTED SOFFIT 7 SQ. FT, Cn .) t•. :.t r . ... 0 Cn LU W :.� C/) . FoL— L`L VENTED SOFFIT 12 SQ. FT. _ ... ... :.� ZONE-2 :.� NNN Q N M ATTIC SPACE 1 W •,■ Z > VENTED SOFFIT 3O SQ. FT. 12 SQ. FT. •,� •,� •,� •,� •,� •,1 •,� •,� '.� ~•,� �--. (Zone 4) 02090 ZONE-1ATTIC SPACE>210 SQ. FT. � .... ATTIC VENTILATION CALCULATIONS - B ATTICVENTILATION REQUIRED UPPERVENTILATIONPROVlDED 1/150 Rule1/300 Rule RidgeVentAmt (No Upper Ventilators (Must Provide Upper Ventilators) (Ft.) Off -Ridge Amt. Req.) Total Ventilation ATTICProvided by SPACESQ. FT. SQ. IN. of Upper SQ. FT. Total SQ.Ventilators SQ. IN. of of vented IN. of of ventilation to ventilation vented be provided SQ. IN. of SO. IN. of (See Elev) required soffit ventilation soffit by upper Ventilation Ventlation needed required needed ventilators Main Floor 210 202 29101 7 50 0.0 0.0 0.0 (Zone 1) 0.0 0.0 Main Floor 0.0 0.0 (Zone 2)30 29 4 14 1 7 0.0 0.0 LL 0.0 Upper Floor0.00.0 (Zone 3)165 158 23 79 6 40 0.0 0.0 0.0 Upper Floor 2006 287 1003 72 502 38.0 0.0 570.0 570.0 0.0 **NOTE** GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS REQUIRED BY FBC 5th ED. RESIDENTIAL. VENTED SOFFIT LEGEND IF SOFFIT IS LABELED AS "NON -VENTING" FIRE PROTECTION WILL BE INSTALLED AS REQUIRED BY SECTION R302 OF THE FBC 5th EDITION (2014) RESIDENTIAL. IF LABELED AS "VENTED", NO FIRE PROTECTION WILL BE REQUIRED. VENTED SOFFIT .................................. . VENTED SOFFIT 32 SQ. FT. ROOF PLAN B SCALE: %4"=1'-0" � r Z M O 0 -o Z Z Q J O t� z O W w V W ~ O � o m t-- In U WM W E 004 all M NO ) r6 M E— N 'O M — U 0 O O N w LL aD O � O u7 Q � Q m � O A, N C B D C B D® N cNo O (ca 34 LL t 0cp LLB/--PP� V_ � .5� 'oA9.L � c To the best of the Engineer's knowledge, information, and belief, the structural plans and specifications contained within these drawings comply with the Florida Building Code Sth Edition (2014) Residential. Engineer's signature and seal is only for the structural engineering portions of the drawing pages bearing Engineer's signature and seal. O Z (VO (3) k� F•••t .a..+ Q I>-r j) M O M Q � � L1- oC U Q � � Z W J � d' oZ Woo wzl-4na Z O z} O a 0 Z Q Q U Q Q U OUF-aOZ uQ O ��J ri L.li N N Ll') J WOQ W Q � wn00� _0 z p z � O w za� 1122 7 6 zZ z wwpZOp z 8g;�oa � w W O w z a �¢�po �'- M .�.� � cn a X `�` z � O w Q O � JoaYw LL aa�� z O M O W > og 0 Z SCALE : AS NOTED PLOT DATE : 12/7/2012 TECH: MJAM ES VERSION N0. JOB NO: 17-5171 SHEET N0. � r Z M O 0 -o Z Z Q J O t� z O W w V W ~ O � o m t-- In U WM W E 004 all M NO ) r6 M E— N 'O M — U 0 O O N w LL aD O � O u7 Q � Q m � O A, N C B D C B D® N cNo O (ca 34 LL t 0cp LLB/--PP� V_ � .5� 'oA9.L � c To the best of the Engineer's knowledge, information, and belief, the structural plans and specifications contained within these drawings comply with the Florida Building Code Sth Edition (2014) Residential. Engineer's signature and seal is only for the structural engineering portions of the drawing pages bearing Engineer's signature and seal. O Z (VO (3) k� F•••t .a..+ Q I>-r j) M O M Q � � L1- oC U Q � � Z W J � d' oZ Woo wzl-4na Z O z} O a 0 Z Q Q U Q Q U OUF-aOZ uQ O ��J ri L.li N N Ll') J WOQ W Q � wn00� _0 z p z � O w za� 1122 7 6 zZ z wwpZOp z 8g;�oa � w W O w z a �¢�po �'- M .�.� � cn a X `�` z � O w Q O � JoaYw LL aa�� z O M O W > og 0 Z SCALE : AS NOTED PLOT DATE : 12/7/2012 TECH: MJAM ES VERSION N0. JOB NO: 17-5171 SHEET N0.