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 ⏱️ Chapters: (0:00) What Is a Low-Slope Roof Membrane (1:07) Free Study Notes (1:48) Sloped vs Low-Slope Roof (2:40) Why Shingles Fail (3:16) Built-Up vs. Single-Ply Roofing (5:30) Built-Up Roofing (BUR) (8:06) Modified Bitumen Roofing (10:30) EPDM Roofing (12:36) TPO Roofing (14:24) PVC Roofing (16:39) How to Choose a Roof Membrane (19:12) How a Roof Membrane Stays Put (20:19) Roof Membrane Recap (21:55) Study with Young Architect 📖 Read the full blog post 📝 Download the FREE Roof Membranes study notes 🎯 Get access to all ARE study materials with the ARE 101 Membership 🎯 Join our 10-week ARE Boot Camp 📚 Individual courses covered in this episode: PPD 101 PDD 101 Building Systems 101