How Many Roof

See the image below for more explanation on rise run and pitch.

How many roof.

As you begin to calculate various costs you will see that the cost is a result of the interplay of many different variables including roof area in terms of footage measurement of any roof extras like. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. You will also need 5 nails for each starter shingle. Roofing panels come in many styles and dimensions with different overlap dimensions.

Calculate or enter the square footage of the attic or area to be vented. Once you enter the basic roof dimensions and enter the type of roof you will get a very accurate result telling you exactly the amount of shingles that are required to cover your new roof. For example standing seam metal roofing is 24 inches wide. Luckily there is a basic formula you can use to determine this.

At 4 nails per field shingle that s about 320 nails per square. A roof vent is a type of fixture installed on your roof that exhausts hot air. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. The most common lengths are 8 10 12 and 16 however many distributors will cut to length.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Corrugated metal is 36 inches wide. The size of your roof and attic space will determine how many roof vents you need. In our example we will use 24 inch standing seam roofing so we will divide 360 inches by 24 which equals 15.

A 12 in 12 pitch is a steep 45 degree angle roof. This is the number of metal panels needed for one side of the roof. Divide the length of your roof by the width of the metal. Estimate how many roofing nails you ll need.

The most common widths are 24 and 36 exposed but the actual width of the panel will be larger to accommodate an overlap. Inquire at the hardware store regarding the size of nail you ll need and how many pounds or kilograms you. For high wind areas use 6 nails per shingle or 480 nails per square. The roof shingle calculator is a free estimator that serves a useful purpose during any roof repair or replacement project.

Outside of the u s a degree angle is typically used.