How To Measure To Make A Roof

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 to make a roof.

Find the length and width of the building s exterior walls. It is often compared to slope but is not exactly the same. Outside of the u s a degree angle is typically used. Area of section b 20 x 40 800 sqft.

Measuring your roof from the ground 1. Measure as precisely as possible down to the 1 4 inch 0 64 cm 1 8 inch 0 32 cm or 1 16 inch 0 16 cm. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. What you ll need to measure a roof.

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. 1 roof square 100 square feet. Position your ladder at the corner of one of your roof planes to determine the length. To measure your roof from the ground use your tape measure to find the length and the width of the home by stretching the tape measure along the exterior walls.

Thus in a simple style house you ll only have to click on the corners. The first thing you ll need to measure is the square footage of your roof. If your roof has overhangs eyeball them and add the approximate length to your measurements. Area of section a 20 x 60 1200 sqft.

Before you start cutting you first need to determine how long your roof rafters need to be and the angles at which you ll cut the top and bottom of the rafter. Extend your measuring tape as far as you can along the length of your roof and mark the area. To find the pitch of your roof you ll first. We ll use satellite imagery and trigonometry to calculate your roof s measurements.

If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. The positive roof measuring method requires you to break the roof up into measurable sections. Use a pitch. The pitch is the steepness of the roof.

For image 1 2 find the area of all sections of the roof and then add them together to find the total area of the roof. The length l times the height h of a triangle is twice its area a2. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Use a tape measure to measure the entire width of your building.

Roof reports and wall reports made easy. L h 2 area calculating an area of a triangle when estimating a roof. Stretch your tape measure along the walls from end to end.