How Do You Figure How Much Metal Roofing You Need

This will determine the amount of roofing material you need.

How do you figure how much metal roofing you need.

Use our roof pitch calculator to find the pitch of your roof. Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy. 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. Measure the length and width in feet then multiply together to find the square footage.

For example standing seam metal roofing is 24 inches wide. Corrugated metal is 36 inches wide. Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof. Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.

Outside of the u s a degree angle is typically used. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Determine the width of the metal you are installing. Finding the size of the roof in squares.

This is simply 100 square feet of roof. In our example we will use 24 inch standing seam roofing so we will divide 360 inches by 24 which equals 15. Step 6 divide the total roof area by the width of the metal roofing material you intend to use. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

Step 5 multiply the total width by the total length for the total roof area. A square simply refers to a 10 x 10 square of roofing. We plan to enable the use of fractions at a later time. 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.

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. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material. That equals to 2 3kwh per hour or almost 56kwh per day of continuous operation. Next find the square footage of the metal roofing panels you want to use.

Enter square footage calculate or enter the square footage of the attic or area to be vented. You will need to express this size in terms of square feet. As mentioned above you will use about 8w per linear foot of ice melting cable. Divide the length of your roof by the width of the metal.