39883 Harvest Creek Ln - Laserfiche WebLink

Browse Search

... .� .— . s - — - - — -- ATTIC VENTILATION CALCULATIONS - 131 TRB ATTIC VENTILATION REQUIRED UPPER VENTILATION PROVIDED 1/150 Rule 1/300 Rule Ridge Off -Ridge (No Upper Ventilators (Must Provide Upper Ventilators) Vent Amt Amt. Req.) (Ft.) 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 SQ. IN. of SQ. IN. of Ventilators ventilation soffit ventilation vented be provided Ventilation Ventilation (See Elev) required needed required soffit by upper needed ventilators Main 22 2 Floor 1999 1919 274 960 69 480 606.0 330.0 276.0 (Zone 1) "*NOTE** GENERAL CONTRACTOR MUST ENSURE THAT PROPER VENTILATION IS PROVIDED AT EAVES/SOFFITS AS REQUIRED BY FLORIDA BUILDING CODE 7TH EDITION (2020) RESIDENTIAL. ROOF PLAN — ELEV—B1 SCALE: %4'=1'-0" I Attic Ventilation I Attic Ventilation to be in compliance with the Florida Building Code 7th Edition (2020) Residential R806. 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 the space to be ventilated.Upper ventilators shall be located no more than 3 feet (measured vertically) below the ridge or highest point of the space, with the balance of the required ventilation provided by eave or cornice vents. **CALCULATIONS BASED ON THE FOLLOWING VALUES, SEE ROOF PLAN** (Values to be verified with Manufacturer Specifications) • OFF -RIDGE VENTS 138 SQ. IN. OF NET FREE AREA / UNIT • SOFFIT VENTS 7 SO. IN. OF NET FREE AREA / SQ. FT. • STUCCO SOFFIT VENTS - 126 SQ. IN. OF NET FREE AREA / SO. FT. *If not enough vented soffit is provided due to fire protection, the contractor shall use the following approved vents: • LOMANCO DECK -AIR (Shingle Roof) - 9 SO. IN. OF NET FREE AREA / FT. "Formula: (Sq. Ft. Soffit Needed) x 7 = (Sq. In. Needed) / 9 = Linear Ft. of Deck -Air Needed) CV O CV CV CV N,�,'t� Er!W�� k o o No FE78750 Ct• W o • 1•/ 1 ••• �. OF,, 411 •��`� ST` T ,• rN To the best of the Engineer's knowledge, information and belief, the structural plans and specifications contained within these drawings comply with the 2020 Florida Building Code - Residential 7th Edition. Engineers signature and seal is only for the structural engineering portions of the drawing pages bearing Engineer's signature and seal. W a E oo g8 Co has LL 0 � kn °Q �' u LL W Yi CO f` r- V y M CV -J W LL . d Y JU.LL 'L W *jIU W. 7 rNkO - OJ J M. T' LL W Go Ci N 04Z a Cy0 ZoU 6_1C W ❑❑❑ U C') Z J CL_ � 13 N Z p (3� Ci _ 0 w l� o (a F— in U _ ® l 1.1 J p p H _ U � c Y • Q N iA O M z W LJL oS S p . z® O m V C F- soU O oa . Up O U ZN ~ 6 �= ag ado a� W2 � m� Mo za'"` zC N J ua w 2W, a0Z W d 3 0 LL �z g =5 u� Mj �' zl�a r- u 3 L� J c9 L > J •� ,c L N O n^ 1..� U C Co U Z N cm r L•n ,� o = N r U') _ 2 CO M 0) N LC) r— r 000 E c r N M 0 z E O d m a E U _j Q p JOB NO: 21-4275 SCALE : AS NOTED SHEET NO. 5