How Do You Measure A Roof In Squares

The roof surface area would be 24.

How do you measure a roof in squares.

Measure all your hips valleys ridges eaves and rakes. Divide your square footage by 100 to get how many squares of roofing material you will need. Multiply the number of roofing squares for a medium pitch roof by 1 12 to 1 25 or by 1 3 to 1 42 for a high pitch roof to get the square roof area. The easiest and most accurate method to measuring a roof plan is to square everything off.

1 roof square 100 square feet. With this method only 2 calculations are needed. If you use ground measurements to determine your roof squares you will need to also compensate roof overhang and slopes to get an accurate count. So for instance if your total is 2 381 square feet that s approximately 23 8 squares or 24 squares rounded up.

To convert the square footage to roof squares divide the square footage by 100. The length l times the height h of a triangle is twice its area a2. Things you will need steel tape measure. It is often compared to slope but is not exactly the same.

Therefore divide your total area by 100 or 9 3 if you re using meters to get the number of squares. Outside of the u s a degree angle is typically used. Add all your measurements together to get your total square footage. Notice the bold dotted line this dotted line separates the main roof from the gable pop out on the front of house.

This means that you want to divide the roof into sections. L 30 feet h 12 feet 30 12 2 180 square feet. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. 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.

Then using a tape measure determine how many inches are between the middle of your level and your roof. See picture below from home advisor. If you re going to use an area calculator you can do this separately for each level of the home to ensure a more accurate calculation. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. In roofing terms a square is 100 square feet 9 3 meters. So if you divide your answer of a product of length times height by two you will get the area of a triangle.