How Do Measure A Roof For Shingles

The last step in measuring your roof for shingles is possibly the simplest because all it entails is using your measurements to calculate your roof s square footage.

How do measure a roof for shingles.

Then determine the area of the roof as if it were flat. How to measure a roof for shingles step by step the process of accurately measuring a roof involves first making a diagram of the roof to show the basic shapes of each roof plain and how they relate to one another. Don t round your roof measurements up or down. Rounding before you begin multiplying and adding may throw off the accuracy of your final estimate.

You will then have to get the measurement of the rake of the roof. How to measure a roof for shingles draw a rough layout of your roof. Calculate the square. 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.

Next to calculate the square footage of each rectangular plane multiply the length by the width. Start by measuring the length and width of the roof in feet as you re standing on the ground. Remember that the length and width need to be found for the roof not the house so take into account that the roof overhangs the building. First you must measure the length and width of each plane of the roof including dormers.

Outside of the u s a degree angle is typically used. Divide the roof into manageable sections. If the planes aren t rectangles this may be complicated. 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 do this you need to note that one tab will be equal to 1 foot. L 30 feet h 12 feet 30 12 2 180 square feet. To calculate a rough estimate follow these steps. This will be done once it s time to determine the number of shingles you need.

For each individual section of roof that you measured you will need to multiply the length by the width which will give you the square footage of that section. 1 roof square 100 square feet. Then each measurement is recorded on the diagram applicable to that roof surface. To measure for roofing shingles start by calculating the area of each plane or section of the roof.

Required measurements include the following. Next divide your total area by 100 to calculate the number of roofing squares you ll need to buy. So if you divide your answer of a product of length times height by two you will get the area of a triangle. Measure and record your findings.

This doesn t have to be an exact sketch but. The length l times the height h of a triangle is twice its area a2.