How Is A Roof Measured

Finally the more complex part measuring your roof s pitch.

How is a roof measured.

To calculate the total square footage of the roof add up every plane s square footage. Bring a two foot level. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. It is often compared to slope but is not exactly the same.

Roof pitch is measured by rise run rise the distance from the top of a stud wall to the peak of the roof. To find the pitch of your roof you ll first. 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. Measuring your roof from the ground 1.

1 roof square 100 square feet. Estimate or calculate the pitch of your roof low medium or high. Roof pitch roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. For the latter measurements should ideally subtract the space taken up by those penetrations such as roof mounted ac units and skylights.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. Once you have this measurement you can then measure the footprint of the home and estimate the actual roof calculation based on the particular angle of the roof. Stretch your tape measure along the walls from end to end. With roofing software you can simply trace the footprint of such objects and subtract them from the total measurement.

The length l times the height h of a triangle is twice its area a2. Thus in a simple style house you ll only have to click on the corners. Use a pitch. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.

Calculate the pitch of the roof. The pitch is the steepness of the roof. Climb to the peak of your roof. The run always remains.

L h 2 area calculating an area of a triangle when estimating a roof. We ll use satellite imagery and trigonometry to calculate your roof s measurements. Multiply width x length this will give you the roof s square footage of one plane. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.

Run the distance from the outside edge of a perimeter stud wall to the center of the house. Find the length and width of the building s exterior walls.