How To Measure A Roof For Shingles Calculator

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.

How to measure a roof for shingles calculator.

This roof shingle calculator requires four basic inputs. Simply enter your roof dimensions and roof type such as gable or hip and approximate roof pitch. Start by measuring the length and width of the roof in feet as you re standing on the ground. Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level.

Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house. You will then have to get the measurement of the rake of the roof. There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these. From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter.

Outside of the u s a degree angle is typically used. Measure the pitch of your roof in the attic. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Measure both the width gable side and the length eave gutter side.

To do this you need to note that one tab will be equal to 1 foot. 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. If the existing shingles are standard 3 tab shingles you can get this measurement by taking note of the number of tabs along the eaves and ridges then determine the length in feet. Mark a length of 1 foot 0 30 m on a long level starting from one end.

Our calculator results show your roof area material details and their cost per square foot plus the total estimated cost of a new roof including materials and installation expense. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.