How Much Roof Coating Do I Need

Best elastomeric roof coating for flat roof.

How much roof coating do i need.

How much roof coating do i need. Then multiply length x width to get the square footage of each plane. By annie walton doyle updated september 7 2018. Sloped roofs are usually tiled or asphalt shingle where complete coating is not recommended.

Hunker may earn compensation through affiliate links in this story. Measure the length and width of the roof to determine the size in square feet by using the following formula. You ll need 1 gallon of primer and 2 4 gallons of acrylic roof coating for every 100 feet. When you include accessory products such as patch compound fabric and sealer the cost of an acrylic coating really adds up.

Just measure the length and width of each plane on the roof including dormers. There are several points need to consider before choosing the most suitable yet best coating for your room. One gallon will cover 50 square feet of foam or modified bitumen roofing concrete or bonded tar and gravel roofing. This maintenance typically comes in the form of coating the flat roof.

Even more so than other roofs flat roofs require maintenance in order to last. In order to estimate how much roof paint you ll need first you need to estimate the total square footage of your roof s surface. 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. Generally we highly recommend the topps seal water free elastomeric roof coating for various reasons.

Knowing the square footage of your roof helps determine how many pails of elastek coating you will need. Highly porous concrete roofs may require more coating for proper coverage. Roof coating systems are designed around dry film thickness coverage rates or gallons per 100 square feet are the determining factor in the finished thickness of the coating system. And don t forget that the typical acrylic roof only lasts about 3 5 years before a recoat is required.

For areas where you will not apply product subtract that area from the total. A flat roof and other shapes would work well with this coating type. Flat roof coating for materials will cost around 1 50 3 50 per square foot and 0 50 3 per square foot for labor. Roof slope and cost flat roof coating typically involves coating over pre existing roof system such as a metal roof.

For all three products allow one gallon of roof coating for every 80 square feet of corrugated metal roof or 100 square feet of smooth metal roofing.