Roofing

Roof estimates start with geometry. Measure each roof plane, then account for slope when turning a horizontal footprint into sloped roof area. Roof pitch describes rise over run; it does not by itself count shingles or specify rafter size. Roofing squares express area in units of 100 square feet. Shingle bundles vary by product, so use the coverage on the packaging rather than assuming a fixed number of bundles per square. Valleys, dormers, hips, and penetrations add cuts and should be listed separately. A roofing calculator helps estimate surface area or materials. A roof pitch calculator addresses the slope. Rafter and truss tools address member geometry, including span, overhang, and length. Roof vents and soffits relate to ventilation and edge details, while underlayment is ordered by coverage and overlap. Snow load is a design consideration, not a material allowance. Keep the measured roof area, pitch, waste allowance, and product coverage as separate inputs. For structural sizing, safe access, and code requirements, work from approved plans or a qualified professional's assessment. Measurements taken from drawings or the ground can reduce unnecessary trips onto a roof.