How To Estimate Roofing Materials

On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.

How to estimate roofing materials.

But keep in mind that materials typically only account for 40 of the total cost of square roofing. At 4 nails per field shingle that s about 320 nails per square. Pitch measurement method 1. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

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. 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. Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate. 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.

The other 60 is labor. So if you divide your answer of a product of length times height by two you will get the area of a triangle. As such while it can be cumbersome measuring the area and pitch of each part of the roof and multiplying by the corresponding correction factor will result in the most accurate estimate of necessary. 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.

Just plug in your house dimensions select your roof pitch relative roof difficulty choice of materials and let our calculator do the rest. Calculate shingles or other roofing material. A square simply refers to a 10 x 10 square of roofing. 8 inches and you have an 8 in 12 pitch.

Measure for drip edge. Estimate the cost to install a new roof in a click of a button. To find the squares divide the overall roof area by 100 and then round up. 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.

Find qualified roofing professionals in your area enter your zip code to begin measure the length and width of each roof section in feet then multiply together to get he square footage. One square of shingles equals 100 square feet. 1 roof square 100 square feet. Three bundles of shingles equal one square of shingles.

If this distance measures 4 inches you have a 4 in 12 pitch. So multiply the length by the width of the roof and divide that number by 100. Next you will need to use a roofing materials calculator. Estimate how many roofing nails you ll need.

Gauge the amount of hip and ridge. To get a 100 free roof quote enter your zip code above and fill out a simple estimate request form on the next page. Calculating an area of a triangle when estimating a roof. The length l times the height h of a triangle is twice its area a2.