How To Measure A Gable Roof For Shingles

If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof.

How to measure a gable roof for shingles.

Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. The difference is in the fewer amount of ridge capping you need and the amount you will waste will be less than that for a hip roof. Each geometric plane is a rectangle so we can use our formula for a rectangle base x height. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.

A gable roof s square footage is equal to that of a hip roof with the same dimensions. It is often compared to slope but is not exactly the same. One pack of standard shingles covers 33 sq. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.

Note that in the last 3 4 years costs of roof shingles and many accessories have gone down by an average of 18 20 currently the us national average for benchmark architectural shingles is around 74 51 square or 25 per bundle. The roof area for a hip end is the same as for a gable end the intersection is equivalent to a hip slightly conservative so there is usually no need to consider triangles when measuring a roof. This means you would need 240 squares of shingles to cover that roof. Although ceramic tile roofs are expensive they can have a life span of over 100 years.

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. Find the square footage of the roof. Then calculate the pitch of the roof by placing a level against it angling the level so the bubble is centered and measuring the distance between the end of the level and the roof. Next use the pitch to look up the pitch multiplier for the roof online.

If you look at a gable roof you can see that it is comprised of two basic geometric planes that meet at the top ridge. Finally multiply the area by the pitch multiplier to determine the roof s square footage.