Roofing contractor has found that 90 percent of roofers underbid their jobs.
How to estimate roofing jobs.
How to estimate roofing materials.
To find the squares divide the overall roof area by 100 and then round up.
Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square.
For example if the total cost of materials was 125 00 per square w tax 5 insurance.
The whole industry could benefit from brushing up on how to bid a roofing job.
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.
Luckily a number of tools exist to virtually measure a roof and easily estimate the cost of materials and labor required for the job.
Next you will need to use a roofing materials calculator.
Once you have a firm grasp on what the job entails it s time to list the materials you need and calculate the total cost.
I m a 10 year retired roofing and siding contractor who used to have 5 roofing crews working year round in northern nj.
Although asphalt shingles are the most common roofing material you also have the option of other roofing materials such as solar tiles metal roofing stone coated steel slate rubber slate and even green roofs with plants on them.
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.
Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.
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.
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.
How we charged for a standard basic roofing job was 3 times the total material cost to the nail including a percentage for insurance.
Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate.
This is simply 100 square feet of roof.
For instance if the roof is 1550 square feet then it is 16 squares.
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.
You could earn more margin by changing how you measure the roof or how you estimate costs to better reflect the real costs you ll pay.
