How To Estimate Roofing Materials

Measure for drip edge.

How to estimate roofing materials.

The other 60 is labor. Start at the edge of the roof and measure out 12 feet. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. With an online roofing calculator you will usually be able to drill down a bit deeper in order to see a fine grained cost breakout on a sq ft basis.

If you are unable to crawl on the roof you can estimate by measuring the footprint of the roof and finding the square footage of the footprint. Enter your measurements rounded to the nearest foot. Then connect with local roofers for help with your roofing project. But keep in mind that materials typically only account for 40 of the total cost of square roofing.

The length l times the height h of a triangle is twice its area a2. Next you will need to use a roofing materials calculator. Finding the size of the roof in squares. While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12.

1 roof square 100 square feet. Now measure upwards at a 90 degree angle to capture how much the roof rose over that length. Once you work through the basic triangle we will review a typical roof and how to apply some simple math to calculate how much material you will need for a roof used in our hypothetical example. Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.

Estimate how many roofing nails you ll need. At 4 nails per field shingle that s about 320 nails per square. Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof. Estimating other materials 1.

You need to account for the pitch in order to have an accurate materials estimate. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material. Gauge the amount of hip and ridge. This metal strip which goes beneath the underlayment protects the edge of the roof from rot.

Let s say our roof rose 5 feet. Use our roofing calculator to measure correctly and determine how much roofing material you need for your project. A square simply refers to a 10 x 10 square of roofing.