RoofCalc Step 1: Select Roof Type*Straight GableCut-up GableStraight HipCut-up HipStep 2: Select Pitch*LowModerateSteepStep 3: How Many Current Layers Of Shingles?*12Step 4: Roof Coverage Area*(Include Overhangs and the Garage) Know the square footage (floor area) of your home? Enter it here:Otherwise, enter the length and width of your home:Step 5: Please Provide Your E-Mail Address*