078 - Roof Membrane Types: How to Choose for Any Building

The five major roof membrane types for low-slope roofs: BUR, modified bitumen, EPDM, TPO, and PVC. In this episode, you will learn what each one is, where it belongs, and how to choose the right one for any building.

We break down the two roofing families (built-up vs. single-ply), the thermoset vs. thermoplastic distinction that explains why some seams are welded and others are glued, and a decision framework based on budget, climate, and building use.

Whether you are studying for the ARE or working on a real project, this episode makes roof membranes simple.

📝 Key topics covered:

Built-up roofing (BUR) vs. single-ply roofing

Modified bitumen roofing: APP and SBS

EPDM roofing (the rubber roof)

TPO roofing: the most common single-ply membrane

PVC roofing and chemical resistance

Thermoplastic vs. thermoset seams (welded vs. glued)

How to choose a roof membrane by budget, climate, and building use

Roof membrane attachment methods: fully adhered, mechanically fastened, ballasted