🏢 ASTM E2307 Edge-of-Slab Fire Barrier, 4-Lb Mineral Wool & Elastomeric Spray

Curtainwall Perimeter Slab Edge Fire Safing Calculator

Calculate exterior curtainwall perimeter slab edge fire safing under ASTM E2307 (preventing vertical fire leaps across building exterior gaps): calculate 4-lb/cuft mineral wool safing insulation board compression (25% to 33% friction compression fit), elastomeric sprayable firestop coating gallons (1/8" wet film), and commercial glazier/firestop bids.

1. Project & Operating Inputs

Perimeter Floor Slab Edge Joint Length (Linear Feet e.g. 3,200 ft)

Slab Edge Void Width (Inches e.g. 4.0" Curtainwall Void)

Customer Invoiced Bid Price ($ / Linear Foot e.g. $22.50/ft)

4-Lb Safing Wool, Z-Brackets, Elastomeric Spray & Labor ($ / Ft)

2. Financial Breakdown & Yield

ASTM E2307 SLAB EDGE SAFING

Turnkey Edge Safing Profit

Firestop Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost