TPO, known as Thermoplastic Polyolefin, is a single-ply roofing material membrane. They come in different thicknesses which are measured in millimeters. This material is one of the most accepted and installed in commercial buildings. It is also a popular choice for low sloped residential roofs. These roofs are composed of a single layered synthetic material.
For proper installation roofers must ensure they have cleaned the existing deck throughly. Typically a single layer underlayment is used known as FR-10. There are many manufacturers and brands available. The TPO may then be rolled out and fastened mechanically. Seams are then welded with an adhesive using a hot air gun.
In this photo I installed TPO on a low slope residential roof.
Tip to recognize proper installation:
- Material is completely extended, preventing major air bubbles.
- Seams are welded completely to waterproof and allow no possibility of leaks.
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