ROOF COATING COMPARISON CHART
Hardness: This is an indication of how much wear & tear resistance a coating has, the higher the rating the better. Armor Roof Coat is as tough as nails and has the highest hardness rating. It means it is far more resistant to wear than lower rated coatings. Some coatings void the warranty or require an inspection after you walk on your roof. Any roof coating with a Hardness rating of 50 or lower cannot be walked on without the risk of damage. We recommend using our Granule version around areas that are walked on more than a couple of times a week. Even if you don't walk on your roof you should be concerned about wear. Rain contains lots of particles that it pulls from the air that are very abrasive and corrosive and along with the Sun(UV rays) is what produces that faded worn out look in standard roofs and roof coatings. As you can see Rood Coat has the highest hardness rating, each 5 points in hardness is an exponential difference. Plus we are one of only a few that pass the ASTM 9000 HR Accelerated Weather testing. We strike a great balance between hardness, durability and flexibility making Roof Coat extremely versatile so that it will wear like iron while not cracking or splitting during extreme weather conditions.
Tensile Strength & Elongation are critical factors as to how much Stress, Expansion and Contraction a coating can withstand before failing. Most other coatings are significantly below Armor Roof Coat. In areas with wide seasonal temperature swings most other coatings are very prone to failure. Ames rating is based on use of Polyester Contouring Roof Fabric(additional labor and material costs).
Elongation: Based on ASTM D-412 test tells you how much can the coating stretch before cracking, at 500% we offer plenty of expansion capability and with 99.999% memory retention! Flexibility is no good if the coating doesn't return to its original dimensions. Most coatings will stop returning to their original dimensions after a relatively low amount of expansions and contractions! Then they start leaking because their pores have been stretched past the water repelling point. Then when you look for the source of the leak you will never find it because the the roof is leaky right through the microscopic pores of your bargain roof coating.
Tensile Strength: We have found through extensive testing that 1000psi of tensile strength is needed for a coating to both perform at it's optimum and to be able to survive the high stress demands encountered on roofs. If a coating isn't strong enough it will simply break down and cease to perform. It's that simple
With commercial roof coatings the saying you get what you pay for is very appropriate. Bargain priced coatings have only one superior feature they offer you cost savings albeit for only a short time until you have to redo your roof cause it's leaking again.