How To Measure Roof Area For Shingles

To do this you need to note that one tab will be equal to 1 foot.

How to measure roof area for shingles.

To figure out the area of a square or rectangular room measure length and width and multiply them together to get the. Once the area of the roof s footprint is known the overall roof area can be found by accounting for the pitch of the roof. Once you know this number you can estimate the final price of the materials. Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area.

Then each measurement is recorded on the diagram applicable to that roof surface. Different types and styles of roofs for homes start by measuring the width and length of your roof including dormers. Keep in mind that this estimation won t include any areas like garages or enclosed patios that the roof covers. An important part of any roofing repair or replacement project is being able to accurately calculate the quantity of roofing materials required to finish the job.

This can be done by multiplying the length in feet by the width in feet to get the area measurement. You will then have to get the measurement of the rake of the roof. 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. To calculate the total square footage of the roof add up every plane s square footage.

The pitch of the roof is the rise over a 12 inch run. Finding the total roof area. 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. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

The length l times the height h of a triangle is twice its area a2. Area is defined as the expanse or measurement of a given surface and there are a few methods for measuring your roof s area. Required measurements include the following. For example you will need to figure out the exact number of shingles required to cover the entire roof area.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. L 30 feet h 12 feet 30 12 2 180 square feet. Use our roof pitch calculator to find the pitch of your roof. Outside of the u s a degree angle is typically used.

1 roof square 100 square feet. The base width is the distance from one corner of your roof to the other at its base on the short side of your house.