How To Size A Roof For Shingles

When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails.

How to size a roof for shingles. Lay the first row of shingles directly covering the narrow starter row. Each area on the roof is a single plane which just means it s a surface with a. Stow these items in a shoulder or hip pack while. The key is to be as accurate as possible since falling short or an overage could mean thousands of dollars when planning your roofing budget.

To find the squares divide the overall roof area by 100 and then round up. Next to calculate the square footage of each rectangular plane multiply the length by the width. The more common roof thickness is 3 4 inch decking. Climb a ladder with a notepad a pencil and a measuring tape.

If the planes aren t rectangles this may be complicated. Cut six inches off the length of the first starter shingle nailed on then use the rest of them full size. Below there is a simple triangle and the math used to work out. To calculate a rough estimate follow these steps.

To figure out your roof s area a simple geometry can be used. Measuring the length and width of each plane by hand 1. Roofing is measured in squares. Then each measurement is recorded on the diagram applicable to that roof surface.

How to measure a roof for shingles step by step the process of accurately measuring a roof involves first making a diagram of the roof to show the basic shapes of each roof plain and how they relate to one another. Snap a horizontal chalk line over the starting row to use as a guide. First you must measure the length and width of each plane of the roof including dormers. This is simply 100 square feet of roof.

For instance if the roof is 1550 square feet then it is 16 squares.