How To Estimate Roofing

To find the squares divide the overall roof area by 100 and then round up.

How to estimate roofing.

The run always remains constant at 12 inches. You can estimate roofing costs once you have all this information. Roofing material calculator the calculated area is only an estimation. Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square.

This is simply 100 square feet of roof. But keep in mind that materials typically only account for 40 of the total cost of square roofing. Next you will need to use a roofing materials calculator. There are two main categories of roofing.

You need to take into consideration the area of the roof needing repair the slant of the roof difficulty of working on the roof and the average rates for roofing contractors in your neighborhood. To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof. Then add 10 to the number to account for waste. Typically you can determine the cost of materials by multiplying the roof s square footage by the cost per square foot of material.

A flat roof has a slope of 2 in 12 or less. Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate. A square simply refers to a 10 x 10 square of roofing. In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.

A low slope roof is anywhere from 2 in 12 to 4 in 12.