How many shingles will I need?
It depends on the square footage of the surface of your roof. Measure length and width of each plane of your roof and then multiply length times width. The result will be the square footage of that plane. Add the square footage of each of your roof planes together for total square footage of your roof. For every 100 square feet, you will need a “square” of shingles. Don’t forget that, for a new roof, you’ll need the same amount of underlayment. Now add 10% to all material totals for trimming purposes. Let Silva’s Roofing & Siding Ltd. take care of this complex calculation for you.