Measuring For Roofing Materials

1 roof square 100 square feet.

Measuring for roofing materials.

Roughly draw out your roof on a piece of paper. Divide your estimated square footage by 100 to estimate your materials. We need to know the roof pitch or the slope of the roof. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

You will need to express this size in terms of square feet. 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. Pitch measurement method 1. Estimate how many roofing nails you ll need.

A square simply refers to a 10 x 10 square of roofing. Roofing materials are bundled in squares that contain enough shingles to cover 100 square feet 9 3 m 2. Measure for drip edge. If this distance measures 4 inches you have a 4 in 12 pitch.

Roofing materials the purpose of calculating the precise measurements of a roof is to ensure that the appropriate amount of roofing materials are ordered whether you have a shingles roof gable roof or metal roof. Remember it doesn t have to be to scale or look pretty. This is simply 100 square feet of roof. Calculating an area of a triangle when estimating a roof.

8 inches and you have an 8 in 12 pitch. At 4 nails per field shingle that s about 320 nails per square. 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. See determining roof pitch step 3.

Dividing 1 290 sq ft 120 m 2 by 100 for example will tell you that you need to order at least 13 squares to get the job done. The first step in a free roofing estimate is measuring the roof dimensions. Estimating other materials 1. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof.

No matter how large or small your home is if you have lived in it 15 to 20 years or plan to repairing or replacing the roof is inevitable. Measuring your roof square is an important step when determining how much roofing material you will need during repair or replacement. This metal strip which goes beneath the underlayment protects the edge of the roof from rot. Now either fax that to 480 768 1514 or put it in pdf format and e mail it to.

Here are some common roofing materials and considerations for each. Step 1. The length l times the height h of a triangle is twice its area a2.