Learn About Single-Ply Membranes So You Understand The Choices For Your Building With A Flat Roof

Posted on: 30 December 2020

If you've never been responsible for a flat roof before, you might not be familiar with single-ply membrane roofing. Roofing materials for flat roofs are different from sloped roofs because rain doesn't have a slope to roll down, and you need to make sure water can't back up under the roofing in any way. Here are a few things to know about this type of roofing material.

Single-Ply Roofing Might Be Put Over Old Roofing

A single-ply membrane is simply a waterproof membrane that comes on a big roll. The membrane is unrolled and spread over the roof. A single-ply roofing contractor has to determine if the membrane can be spread over the old roof after the old roof is cleaned or if the old roof has to be removed first.

Insulation Boards Might Be Put Down First

If you want added insulation for your roof, the roofing contractor might put insulation boards down and then attach the membrane to the boards. One thing to know about choosing the type of single-ply membrane for your building is that the color of the membrane can affect the climate control of your building too.

Membranes come in white and black. Black might be a good choice if you have very cold winters, and your heating bill is usually higher than your air conditioning bill. The opposite is true for white. A white membrane helps your building stay cooler in the summer.

Single-Ply Membrane Is Installed In Different Ways

The membranes have to be secured to the roof so they won't blow off. A single-ply roofing contractor considers things like the type of membrane you choose, the height of the roof, the amount of foot traffic the roof will receive, and your goals for the roof appearance when choosing the method of installation.

The roofing might be fully adhered by being glued down. The roofing might also be mechanically attached. This might involve using screws along the edges of a membrane and then covering the screws with the next layer of membrane so the screws are protected under sealed seams.

Another installation method to consider is holding the membrane down with gravel. If other buildings look over your flat roof, you might want gravel on your roof to help it look more attractive.

Membrane Roofs Are Made Of Different Materials

One of the most important things to discuss with a single-ply roofing contractor is the type of membrane to choose. You might want rubber or PVC. Things to consider are the expected lifespan, puncture resistance, color, and ease of maintenance and repairs. Your contractor will assess your roof and recommend the right membrane for your needs and attach it in the best way for your building.

Contact a company like Berwald Roofing Inc to learn more.