🏠 Roofing
Roofing calculators
Pitched-roof area, shingle and tile count, underlayment, rafter length, gutter runs, hip roof, metal roofing, ridge cap, flashing and ventilation.
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Flat Roof Material Calculator
Calculates membrane area (EPDM, TPO, modified bitumen) for flat roofs
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Gutter / Guttering Calculator
Estimates metres or feet of guttering, downspouts, and fittings
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Hip Roof Area Calculator
Calculates hip roof area and material quantity from plan dimensions
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Lead Flashing Calculator
Estimates lead flashing length and weight for chimneys and abutments
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Metal Roofing Calculator
Estimates metal roof panels, screws, and trim for standing seam and corrugated
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Ridge Cap / Ridge Tile Calculator
Calculates ridge tiles, caps, or shingles for roof ridge and hips
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Roof Area Calculator
Calculates actual roof surface area from plan footprint and pitch
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Roof Batten / Furring Strip Calculator
Calculates linear metres of battens from tile gauge and pitch
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Roof Insulation Calculator
Estimates rolls or boards of roof insulation for pitched and flat roofs
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Roof Pitch Calculator
Converts pitch between degrees, ratio, and percentage
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Roof Tile / Shingle Calculator
Estimates roof tiles or shingles by pitch and area
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Roof Ventilation Calculator
Calculates intake and exhaust vent area for balanced roof ventilation
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Roofing Felt / Underlayment Calculator
Estimates rolls of roofing felt or synthetic underlayment with overlap
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Skylight / Rooflight Opening Calculator
Calculates structural opening size and flashing for rooflights