What Are Polyurethane Waterproofing Membranes?

Polyurethane waterproofing membranes or PWMs are a type of roofing protection that offer waterproofing qualities to the roof, ensuring that moisture and other contaminants do not make their way into the bundling. As a method of ensuing that your roof is water proof, they are pretty popular due to the ease in which they can be installed and how effective they are against water content. The fact that they have no seams or joints means that there are fewer places where water can enter, or cracks can emerge. Here is an explanation of ow this roofing material works and a few reasons why PWMs have become so popular in recent years.

How They Work

Polyurethane waterproofing membrane form a thin membrane around a surface, which ensures that water does not find a way of getting through the surface and damage the structure. This thin film is made up of plastic compounds that are flexible, strong and prevent water from seeping through them. The material is applied in different ways, but most DIY applications involve using a paint roller to apply it directly to the roof surface. A good example where Polyurethane waterproofing membrane is particularly effective is on flat roofs.  This is because Polyurethane waterproofing membrane is particularly resistant to standing water. This makes it very ideal to apply on flat roofs and decks, as it offers great protection for such roof designs. Let us now look at some advantages of such roofs.

Rapid Installation

Unlike other kinds of roofing membranes, the Polyurethane waterproofing membrane is easy to install and does not require a lot of manpower. For flat roofing where climbing equipment is not needed. Homeowners can even apply it themselves with a few lessons on how to do it right. For contractors, this is pretty welcome as it reduces the cost of installation.


Another advantage of using Polyurethane waterproofing membrane is that it offers effective protection for your roof for a long time. This is because the tough polymers that are used in the sealant are impervious to weather elements, such as sunlight and more. This means that you get effective protection for your roof a long time. The great thing also is that when you need to apply it again, the process is relatively easy and cost-effective.

No Seams or Joints

As all builders know, seams and joints between structures or fixtures are some of the weakest points in any structure. These are particularly vulnerable to water damage, as it is in such openings that water typically finds it way into the structures. One of the biggest advantages of using Polyurethane waterproofing membrane is that it offers a surface that is seamless, ensuring that water has no pathway to get through to the structure below.

Good For Aesthetics

because the Polyurethane waterproofing membrane comes as a clear membrane, you get the protection you need without affecting the color of the surface beneath it. This allows you to still have your roof colors as vivid as you need them to be, as they will still show through the membrane. Even better, you get dual benefits, because the membrane is UV resistant and thus protects your colors from fading. This increases the curb appeal of your home and could even increase the value of your property.