Measuring A Roof For Replacement

In this context a plane is defined as each flat continuous section of the roof.

Measuring a roof for replacement.

Measure each side of the main section of the roof. The entire process involves four parts measurement of slope measurement of roof area calculation and the final work is to calculate required shingles to replace the roof. You will need to express this size in terms of square feet. The first technique is referred to as the shingle count method which is used for estimating the measurements of all rectangular shaped sections of a roof.

Complete one side at a time before moving on to other areas. Or a fall of. 1 roof square 100 square feet. While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12.

A width measurement is required to calculate the number of sheets. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure. To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high. M2 area shed roof.

The length l times the height h of a triangle is twice its area a2. Or a fall of. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. Or a fall of.

The length measurement is required to calculate the length of sheets. Mono pitch roofs are usually the easiest to measure. M2 area roof b. As such while it can be cumbersome measuring the area and pitch of each part of the roof and multiplying by the corresponding correction factor will result in the most accurate estimate of necessary.

The first step in a free roofing estimate is measuring the roof dimensions. Try to make all measurements with patience in order to get the most precise calculation of required shingles and other materials. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. You re just looking for the outer perimeter at this stage.