Commercial Roofing Non-Adhering Membrane Product

     Non-Adhering Membrane: As the name states, this category includes commercial flat roofing products that consist of membranes (such as PVC) that are not mechanically attached/stacked sheet membranes. The most common use for this type of product is for those that are used as a waterproofing membrane over an existing roof, due to it's ability to seal out water while also providing additional support needed by roofing systems, including the use of adhesives and fasteners (which helps keep leaks from reoccurring).

     These coatings are typically used on commercial roofs that have a light to moderate foot traffic areas, and also on non-critical light to moderate load bearing applications such as parapet walls and interior partitions. Verified by an independent laboratory, these coatings do not absorb water and are resistant to alkalis, acids and solvents. The unique acrylic copolymer system allows the light fastness of the resist to be increased while maintaining a high bond strength.

     These panels are made with a rib structure that assists in the keeping out of water, and also prevents air from moving through behind the shingles.

     The coating is non-toxic to humans, and it meets or exceeds all government standards including those of California Air Resource Board (CARB), U.S. Environmental Protection Agency (EPA) and Federal Public Works Administration (PWA).

     Non-adhering membrane roof coatings are specially designed for use on flat or low slope roofs such as parapet walls, civil walkways, residential garage floors, even on a log home etc., where ease of installation is vital. They can be used over many substrates such as wood shake, slate (except for terra cotta clay), concrete tile, torch down, modified bitumen, etc.

      At an approximate cost of $14-$16 per square foot (price range varies depending on size and quantity purchased), the coating installation cost is average. Non-adhering membrane product is slightly cheaper than metal roofing for sloped roofs. However, it cannot be used on flat roofs with light or moderate traffic areas due to its poor wind resistance rating.


MB manufacturers include CertainTeed , Owens Corning and Georgia Pacific .

     Here’s more information regarding the commercial roofing maintenance product, Certain-Teed's MaxGrip: This is a flexible self-adhering PVC underlayment that has been known to work well with many types of commercial flat roofing applications. It can help to prevent leaks/deter damage caused by physical stress all around your building, while also offering contractors solid protection against severe weather hazards; especially when combined with adhesives or fasteners. One downside to it is that its not as durable in high heat areas (like coastal regions) as some of the other products available on the market today.

     Here’s more information regarding the commercial roofing product, Owens Corning's DCM: This is similar to MaxGrip, but offers contractors a more comprehensive product that also comes with patented technology that allows for easy installation and repair needs during its lifespan — while also offering solid protection against severe weather hazards; especially those relating to wind damage as well as heavy rains all around your building. Like MaxGrip, this PVC membrane will suffer from decreased durability if used in area s with higher levels of humidity or durability issues due to its use of aging material technologies and Astyrenic (Owens Corning's proprietary material).

     Here’s more information regarding the commercial roofing product, Georgia Pacific's WeatherMate: As far as PVC membranes are concerned, this is one of the most durable products known today in our industry. It has been used with varying commercial flat roofing applications and has proven to be extremely long lasting when maintenance is properly carried out on it as needed — which makes it ideal for use with commercial buildings that need added protection against extreme winds or a water intrusion on an otherwise functional system. One downside to its usage is that there have been some issues reported over the years relating to installation issues; especially by contractors who weren't familiar with utilizing adhesives or fasteners needed to tear off and replace problematic sections of this product. Learn all about the Commercial Roofing Polymer Modified Asphalt roofing.