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Attic Ventilation a 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 o the space to be ventilated.Upper ventilators shall be located no more than 3 feet •• •••••••• •• •• •• ••••••• ••••• •••••• •••••• ••••••••• ••••• ••• ••. ...................000.....:,::............................................. : ' .... .... ......... ...... ........................................................ (measured vertically)belowtheridgeorhighesYpointofthespace,withthe . .............................................................................................................................................................. .. tir MA. �• �. � � A&W ram, ad" 4~ �, �. r,� �,. yam. w+ �. rrr• A&W �o "d w+• &dW y&. "d W sir• A wi &. ". �. �. �, A "do &a.r• balance o the required ventilation provided by eave or cornice vents. •"' ZONE-3 -CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** (D (Values to be verified with Manufacturer Specifications) • RIDGE VENTS 15 SQ. IN. OF NET FREE AREA / LINEAR FT. • OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT t•' • • •SOFFIT VENTS - 7 SQ. IN. OF NET FREE AREA / SQ. FT. ATT I C SPACE 275 S Q . FT. Nf not enough vented soffit is provided due to fire protection, the contractor shall use the • following approved vents: • LOMANCO DECK -AIR (Shingle Roof) - 9 SQ. IN. OF NET FREE AREA / FT. t •'' ' '*Formula: (Sq. Ft. SoM Needed) x 7 = (Sq. In. Needed) 19 = Linear Ft. of Deck -Air Needed) • O'HAGIN (file Roof) - 86.25 SO. IN. OF NET FREE AREA / VENT .......................................................... ... ..Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) 186.25 = Amount of O'Hagin Vents Needed :....................................................: .�. ' :... .':.'. ::. UL_ •.� LL oo VENTED SOFFIT 50 SQ, FT. 00 UL u- ;� O LU LLJ ZONE-4 t ATTIC SPACE 2090 SQ. FT. Cn '.� t•' ILL .••� t:' O •,� •.' Cn .•.� .. W t'•• Z Lu C Y "'� VENTED SOFFIT 7 SQ. FT. _ LO . ;t .:................ ... -� ... ILIL W W W•• LO VENTED SOFFIT 12 SQ. FT. . � � : ZONE-2 71%.... ...W ••� ATTIC SPACE Z .:. > VENTED SOFFIT 30 SQ. FT. 12 SQ. FT, o . ;•� . ;•� .: •� �': .:� '•:.� .:� :.� 11 ; :� d ;•;� T . ;.. • .. .:: :.. �- ZONE-1 •�� t .;t ATTIC SPACE :•t 210 SQ. FT. :;, •• VENTED SOFFIT 32 SQ. FT. ROOF PLAN B SCALE: %4"=1'-0" ATTIC VENTILATION CALCULATIONS - B ATTIC VENTILATION REQUIRED UPPERVENTILATION PROVIDED 1 /150 Rule 1 /300 Rule Ridge Vent Amt (No Upper Ventilators (Must Provide Upper Ventilators) (FL) Off-RidgeAmk Req.) Total Ver�lation ATTIC Provided by SPACE SQ. FT. Total SQ. SQ. FT. SQ. IN. of Upp� SQ. IN. of of ventilation to Ventilators of vented IN. of SQ. IN. of SQ. IN. of (See Elev) ventilation vented be provided required soffit ventilation soffit by upper Ventilation Ver LL_t ilatan needed required needed ventilators Main 0.0 0.0 Floor 210 202 29 101 7 50 0.0 (Zone 1) 0.0 0.0 Main Floor 30 29 4 14 1 7 0.0 0.0 0.0 (Zone 2) 0.0 0.0 Upper Floor 0.0 0,0 (Zone 3} 165 158 23 79 6 40 0.0 0.0 0.0 Upper Floor 38.0 0.0 (Zone 4) 2090 2006 287 1003 72 502 570.0 570.0 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 zo Z Q z W cn Ow ~ Lv o U_j E ��M — � O o0 U � n.I` Q rn�'o A, N.C.B-D-C ®® ,k ti66� 4'F lTP'ES®� �` CD CR CNp � N F s %%s 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 5th Edition (2014) Residential. Engineer's signature and seal is only for the structural engineering po rz (n ON CL t ions of the drawing pages bearing Engineer's signature and seal. O Z N �.Nn M IIY t� o. ZQ LU ED E� � f° W J � d' 0 W LL Z Q UI-�� v�� Lnu aE0 �z zac� ov 1-ao Ln : Q =�Zz�Z 00 =aZ sw © o I-Wo O � Ll7 N rl ?J iifJJJSSS CYCO� a/-� w�000 w z z z��fQ�zz f�0 � �o° N W I--- p�ai�acQ7 wwOrLz� aa�oo z � o M LL u_ z .. ,. O ; �z zoo° IH J SCALE : AS NOTED PLOT DATE : 12/7/2012 TECH: FGUZMAN VERSION N0. 1122 JOB No: 17-1800 SHEET N0. 7 zo Z Q z W cn Ow ~ Lv o U_j E ��M — � O o0 U � n.I` Q rn�'o A, N.C.B-D-C ®® ,k ti66� 4'F lTP'ES®� �` CD CR CNp � N F s %%s 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 5th Edition (2014) Residential. Engineer's signature and seal is only for the structural engineering po rz (n ON CL t ions of the drawing pages bearing Engineer's signature and seal. O Z N �.Nn M IIY t� o. ZQ LU ED E� � f° W J � d' 0 W LL Z Q UI-�� v�� Lnu aE0 �z zac� ov 1-ao Ln : Q =�Zz�Z 00 =aZ sw © o I-Wo O � Ll7 N rl ?J iifJJJSSS CYCO� a/-� w�000 w z z z��fQ�zz f�0 � �o° N W I--- p�ai�acQ7 wwOrLz� aa�oo z � o M LL u_ z .. ,. O ; �z zoo° IH J SCALE : AS NOTED PLOT DATE : 12/7/2012 TECH: FGUZMAN VERSION N0. 1122 JOB No: 17-1800 SHEET N0. 7