ItsMyRoof
Calculators
Calculators that show their formula and their assumptions: area and squares, pitch, attic ventilation, and claim value.
Roof area and squares calculator
Turn a building footprint and a pitch into actual roof area, roofing squares and bundle count — with the pitch multiplier shown, not hidden.
Safe from the groundRoof pitch calculator
Convert rise and run into the X:12 pitch a roofer will quote, the angle in degrees, and the multiplier that converts footprint into roof area.
Safe from the groundAttic ventilation calculator
Required net free ventilating area from attic floor area, at the IRC 1/150 baseline or the 1/300 exception, split into intake and exhaust.
Safe from the groundACV / RCV claim value estimator
Shows why the first insurance check is smaller than the estimate: how depreciation produces actual cash value, and what recoverable depreciation is left to claim.