How Two Types Of Single-Ply Roofing Compare
If your building has a flat roof, then single-ply roofing might be the right choice when it's time to replace your roof. There are two basic types of single-ply roofing: rubber and thermoplastic. Here's a comparison of the two types of roofing and why they are both suitable for a flat roof.
Single-Ply Roofing Is A Good Choice For Flat Roofs
You don't have many options when it comes to flat roofing. There are membrane roofing, spray foam roofing, and built-up roofing to consider. Each has its pros and cons, but single-ply membrane roofing has a few advantages. It's easy to install, easy to repair, and lightweight. Membrane roofing is also durable, and it can even help with climate control of your building.
Thermoplastic Roofing Is Heat-Sealed To Prevent Leaks
Thermoplastic roofing, such as TPO and PVC roofing, is made of plastic that can be melted. This allows the seams to be welded together to reduce the risk of leaking. Membrane roofing is rolled out on the flat roof, and the seams have to be made watertight.
This is done through heat welding with plastic membranes. Heat welding can also be used to adhere patches when making repairs. Plastic membrane roofing often has fiberglass or polyester reinforcement to make the material stronger.
All membrane roofing is usually put down on top of some form of insulation. Since the membrane is only one layer and relatively thin and light, it's necessary to add insulation and a cover board on the roof first. Then, the membrane is applied on top and adhered. Plastic membrane roofing can be attached mechanically with plates and screws, or it can be attached to the roof with adhesive.
Rubber Roofing Is Harder To Puncture
Rubber roofing is durable and more resistant to punctures. However, no matter what type of single-ply roofing you have installed, you may want walkways on the roof to control foot traffic and prevent damage. If a rubber roof is damaged, it is easy to repair with a patch or liquid rubber.
Rubber roofs are made of recycled materials, and they're available in black and white. Both colors are treated to reflect UV rays, and white roofing can reduce solar warming as well. Rubber roofs roll out just like plastic roofing, and the rubber is easy to mold around stacks and other obstacles.
The seams aren't heat-welded. Instead, they're sealed with adhesive and seam tape to prevent leaking. Rubber roofing is also lightweight, but you can opt to top it with gravel, and that adds to the weight of the roof.