How Do You Estimate Roofing Materials

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.

How do you estimate roofing materials.

A square simply refers to a 10 x 10 square of roofing. 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. At 4 nails per field shingle that s about 320 nails per square. The length l times the height h of a triangle is twice its area a2.

1 roof square 100 square feet. This is simply 100 square feet of roof. 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. The other 60 is labor.

Estimate the cost to install a new roof with the help of our newly revamped roofing calculator for homes. 8 inches and you have an 8 in 12 pitch. 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. Measure for drip edge.

Whether you are interested in asphalt shingles cedar shingles clay tiles natural slate or metal roofing our calculator will instantly give you the total cost of a new roof installed based on your home s ground dimensions and the type of a roofing system you are interested in. 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. Estimate how many roofing nails you ll need. Pitch measurement method 1.

Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate. Estimating other materials 1. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. 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.

To find the squares divide the overall roof area by 100 and then round up. If this distance measures 4 inches you have a 4 in 12 pitch. But keep in mind that materials typically only account for 40 of the total cost of square roofing.