Anything more than 9 in 12 is considered steep.
Flat roof estimate calculator.
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.
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.
Rafter rise run this formula is from the pythagorean theorem.
A low slope roof is anywhere from 2 in 12 to 4 in 12.
To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares.
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.
Use the following formula which also describes a right triangle.
When installing new roofing there are many factors to consider when estimating price.
A common choice for flat roofing material is epdm rubber as it is highly durable waterproof and can be made from recycled materials.
In recent years flat roofs have grown in popularity because of their distinctly modern look as well as ease of installation and repair.
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.
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.
The smallest pitch of a roof is 0 5 12.
How to calculate roofing costs.
Flat roof calculator quickly estimates the total cost to install the following roofing.
The average cost to replace a flat roof is 5 10 per square foot installing a simple 1 600 sq ft.
Roof shingles calculator estimates roof area materials and installation costs of asphalt shingles for gable and hip roofs.
Flat roof costs 8 000 16 000 depending on the material you choose.
A flat roof has a slope of 2 in 12 or less.
Here are the equations you may use to solve for the length of the slope and the rafter.
Conventional slope roof range between 4 in 12 and 8 in 12.
There are two main categories of roofing.
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.
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.
