Assembly Options for PVC Roof Membranes

Your building’s roof is one of the most critical components of your project. There are various material options available nowadays for roofing. Polyvinyl chloride (PVC) roofing is, however, the latest and most popular material in most places.

This is due to its fire, wind and chemical resistance, durability and strength. PVC roofing sheets also come in various colour ranges to match all landscapes. There are different assembly options available for PVC roofing, depending on your budget and the weather conditions where you are.

Here are the methods you can select for your PVC roof assembly.

Fully-Adhered Assembly

In this option, your PVC membrane and the substrate are attached using a specific adhesive. Fully-adhered construction is the simplest and fastest method of PVC roofing. This assembly is ideal if your membrane cannot be attached with screws and other fasteners.

Fully-adhered installation should however only be used in temperatures over 40 degrees Fahrenheit to prevent non-adhesion, delamination and bubbles.

Mechanically-Attached Assembly

This method of installation uses barbed plates and heavy-duty screws to attach your PVC membrane to the roof deck. It is the ideal method in extreme weather conditions due to its sheer strength. Your product’s manufacturer specifies the spacing of fasteners used in mechanically-attached assemblies.

Ballasted Assembly

In this option, your PVC membrane is loosely laid across its substrate then held in place using ballast rather than fasteners and adhesives. The ballast consists of manufactured concrete paver, washed river rock and other heavy materials.

Installation of ballasted PVC roofs is quick and inexpensive. Repair of these roofs is however hard, and the roofs are heavy.

Regardless of the method you choose from for your PVC roof’s assembly, ensure you get all your materials from the best supplier in your area. Any compromise on the accessories you use affects the performance of your roof. With proper installation, a PVC roof can last for at least 20 years.