Flat Roof Estimate Calculator

The following tools estimate the area of a roof as well as the amount of materials necessary to construct a roof of a given area.

Flat roof estimate calculator.

You can also calculate roof pitch even without using a roof slope calculator. Flat roof calculator estimates replacement costs of low slope flat roofs single ply membranes epdm rubber pvc tpo and built up roofs tar gravel modified bitumen as well as insulation parapets. There are two main categories of roofing. Rafter rise run this formula is from the pythagorean theorem.

A completely flat roof is a poor design as water and snow will collect on it eventually leading to your roof collapsing in from the weight of it all. A flat roof has a slope of 2 in 12 or less. Conventional slope roof range between 4 in 12 and 8 in 12. Flat roof costs 8 000 16 000 depending on the material you choose.

Here are the equations you may use to solve for the length of the slope and the rafter. The best part of a roofing calculator is that it offers a free insight into the total cost of the replacement roof project on a sq ft basis. Roof shingles calculator estimates roof area materials and installation costs of asphalt shingles for gable and hip roofs. As you begin to calculate various costs you will see that the cost is a result of the interplay of many different variables including roof area in terms of footage measurement of any roof extras like.

A low slope roof is anywhere from 2 in 12 to 4 in 12. Use the following formula which also describes a right triangle. Flat roof calculator quickly estimates the total cost to install the following roofing. In recent years flat roofs have grown in popularity because of their distinctly modern look as well as ease of installation and repair.

Our calculator will estimate your total roofing cost installed including the cost of materials labor and warranty for any major type of roof including 3 tab asphalt shingles architectural and premium composition shingles pvc tpo epdm rubber built up roofs cedar shakes and shingles clay tiles natural slate and metal roofing. When installing new roofing there are many factors to consider when estimating price. The average cost to replace a flat roof is 5 10 per square foot installing a simple 1 600 sq ft. The run always remains constant at 12 inches.

Anything more than 9 in 12 is considered steep. The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator. A common choice for flat roofing material is epdm rubber as it is highly durable waterproof and can be made from recycled materials. How to calculate roofing costs.