Now measure upwards at a 90 degree angle to capture how much the roof rose over that length.
How to do a roof estimate.
Estimating other materials 1.
Next you will need to use a roofing materials calculator.
Gauge the amount of hip and ridge.
To find the squares divide the overall roof area by 100 and then round up.
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.
This metal strip which goes beneath the underlayment protects the edge of the roof from rot.
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.
At 4 nails per field shingle that s about 320 nails per square.
Use a level against the underside of the rafter you re measuring to get the most accurate value.
Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate.
Know what your roofing contractor is looking for.
The most precise way to find the roof s slope is by measuring it from the underside.
Your roofer will inspect the roof before.
Obtain at least three roofing estimates.
But keep in mind that materials typically only account for 40 of the total cost of square roofing.
This is simply 100 square feet of roof.
A square simply refers to a 10 x 10 square of roofing.
The other 60 is labor.
Estimate how many roofing nails you ll need.
To accurately calculate the area of your roof you must first determine its slope or pitch.
Access one of the rafters then take the measurement this way.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
You need to account for the pitch in order to have an accurate materials estimate.
Start at the edge of the roof and measure out 12 feet.
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.
To get a 100 free roof quote enter your zip code above and fill out a simple estimate request form on the next page.
Estimate the cost to install a new roof in a click of a button.
Locate the level s 12 inch mark.
Take these steps to find the right crew and perfect price for your roof installation.
Just plug in your house dimensions select your roof pitch relative roof difficulty choice of materials and let our calculator do the rest.
First measure the roof s pitch.
