Labels:text | screenshot | font OCR: Fire Flow Calculation Worksheet The Formula: NFF 'Length x Width ) + Exposure Charge x % Involvement .1 3 1. Base Fire Flow (BFF) = ( Lx W 3 length X width 3 = BFF (1) 2. Exterior Exposure Protection. # of sides of the fire building having exposures: x .25 (2) # sides X BFF Ext. Exp. 3. Interior Exposure Protection. # of floors above fire floor (Max. 5): .25 (3) floors X X BFF Int. Exp. 4. Needed Fire Flow = BFF + Ext. Exp. + Int. Exp. Add lines 1,2, and 3 = NFF The final figure is for 100 percent involvement of basic fire area (LW). Multiply by the involvement percent for lesser involvements.
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