How To Measure Triangle Roof

This figure shows a triangle with a base of 5 cm and a height of 2 cm.

How to measure triangle roof.

Measure out 12 along the level bottom edge the green line in our sketch. In this case you would simply measure the base footprint of your home length x width. 1 roof square 100 square feet. The calculations for figuring roof angles are based on the width and height of the roof.

First use a ruler to draw a line from the center of the longest side of the triangle the eave to the point the roof s peak. How steep it is in order to apply a slope multiplier. Access one of the rafters then take the measurement this way. Note that the height forms a right angle with the base.

The most precise way to find the roof s slope is by measuring it from the underside. To find the area of a triangle you need to know the length of one side the base b for short and the height h. This is because the roof section of a building can be likened to a triangle with a base width a height in. This procedure to measure roof slope can be performed on the roof or from a ladder at roof edge.

Click to enlarge the image. Mathematicians have no special formula for finding the perimeter of a triangle they just add up the lengths of the sides. Then multiply the length of the longest side by the length of this central line. You would then consider the pitch of your roof i e.

Use a level against the underside of the rafter you re measuring to get the most accurate value. Divide this number by 2 to get the square footage of the triangle. Conversely you could measure the roof from the ground using a very rough approximation. Locate the level s 12 inch mark.

Finding the perimeter and area of a triangle. L 30 feet h 12 feet 30 12 2 180 square feet.