How Do You Figure How Much Metal Roofing You Need

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.

How do you figure how much metal roofing you need.

Enter square footage calculate or enter the square footage of the attic or area to be vented. Divide the length of your roof by the width of the metal. Measure the length and width in feet then multiply together to find the square footage. A typical 120 foot long roof edge with 6 12 overhangs and no gutters deicing will need about 291 feet of cable.

You will need to express this size in terms of square feet. The first step in a free roofing estimate is measuring the roof dimensions. Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy. 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.

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. That equals to 2 3kwh per hour or almost 56kwh per day of continuous operation. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

This is simply 100 square feet of roof. Next find the square footage of the metal roofing panels you want to use. Step 5 multiply the total width by the total length for the total roof area. Finding the size of the roof in squares.

This will determine the amount of roofing material you need. 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. We plan to enable the use of fractions at a later time. Outside of the u s a degree angle is typically used.

How to figure metal roofing to use this panel length calculator enter whole numbers and decimals only. 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. For example standing seam metal roofing is 24 inches wide. Corrugated metal is 36 inches wide.

Step 6 divide the total roof area by the width of the metal roofing material you intend to use. Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof. Determine the width of the metal you are installing. As mentioned above you will use about 8w per linear foot of ice melting cable.