It's a great idea to fuse together principles you believe has the greatest possibility of working. Acrylic elastomeric coatings proved to be the best solution for reducing corrosion and rusting on metal roofing materials. Asphalt shingles' eroding and granulating reputation make it viable to use the coating for prolonged lifespan and performance. Unfortunately, this isn't the case.
The keyword to the one possible outcome of applying an acrylic elastomeric coating on your asphalt shingles is colored granulation. Even with its felt underlayment and anti-UV absorbing top coating, asphalt shingles will begin eroding and crumbling as it ages.
New asphalt shingles might reap more benefits from acrylic elastomeric coatings, especially those with intact UV reflectors. The rubber coating goes right above the material, acting as a double layer capable of reducing erosion as the asphalt shingle roof starts to age.
However, even with this optimistic scenario by reputable Littleton, CO roofers, it's still highly likely the acrylic elastomeric coatings can do much protection or additional advantage for the asphalt shingle roof. On the other hand, asphalt shingle roofs do not rust or corrode. Using an acrylic elastomeric coating can give you better curb appeal due to its wide color palette, but that's virtually the benefits you can get.
Hometown Roofing Contractors has an interesting article about the adverse effects of cooling layers, primarily using acrylic elastomeric coatings. Read more about it here.
During the scorching summer months, your roof temperature can easily exceed 150 degrees F. This can potentially cause damage to the shingles on your roof, and it raises the costs associated with cooling your home. Cool roofing can lower a roof’s surface temperature by 50 to 60 degrees, according to the EPA, which can save you a boatload on cooling costs.
There are products on the market designed for asphalt shingles that you simply spray or brush on to convert your traditional shingle roof into a cool roof, but these products may not be all they’re cracked up to be.
You can find these asphalt shingle coating products at most home improvement stores and many roofing contractors apply them as well. However, shingle manufacturers, such as GAF-ELK, do not recommend coating installed shingles with any product because it can potentially degrade its quality and shorten its lifespan. It can even void the shingle manufacturer’s warranty in some cases.
Utility Company Hit with Lawsuit over Cool Roof Coatings
Florida’s largest utility company, Florida Power & Light (FPL), was slammed with a class action lawsuit a few years back involving shingle coatings applied to more than 4,700 homes throughout the Miami area. Between 2007 and 2009, FPL offered consumers rebates for having the cool roof coating applied to their shingles. The idea was that by applying the coating, homeowners would use less energy cooling their home. That plan pretty much backfired.
Homeowners soon complained of excessive roof leaks, curling/cupping shingles, and rotted shingles. The white-colored, reflective elastomeric coating used was obviously not suitable for asphalt shingle roofs. In fact, most shingles are not designed to handle any type of protective coating.
Not surprisingly, the National Roofing Contractors Association (NRCA) does not recommend any type of protective coating be applied to shingle roofs. This is true in warm parts of the country, such as Florida, and equally true in Northern U.S. states. (Continued)
If you have yet to find reliable roofers, you can always count on us at Roper Roofing for all your repair, installation, and replacement needs. Contact us today.