TPO is a 2-Ply vinyl fabric combined with a rubber-like material. This membrane resists tears, punctures and is flexible, allowing it to adjust to the movement of a building. TPO can be fastened, mechanically glued, or use ballast. It works very well in areas of high winds. A TPO roof usually lasts 10-20 years. A white TPO roof is typically used as it reflects light in the high 80% range when new. TPO roofing systems have a fully heat welded seam. This means no seams to fail. TPO roofing systems are highly resistant to chemicals and oils. They are great applications to restaurants and are commonly used on any commercial or low sloped roofs. They are usually not effected by areas of ponding water.
EPDM rubber is a single-ply commercial roofing system that can be installed; mechanically fastened, fully adhered with glue, or ballasted with river rock. EPDM rubber typically is installed using a solvent based glue at all horizontal & vertical seams. EPDM rubber commonly comes in a black color. It is lightweight, easy to install, very flexible, & can be installed on any type of roof, but is primarily designed for flat or low-sloped roofs. This roof system can be patched fairly easily due to tears or punctures.
Modified Bitumen is roofing asphalt with layers of polyester or fiberglass that is added to the asphalt to add strength to a flat roof. It is used on flat or low-sloped roofs. This product can be installed with hot asphalt, hot torch applied, peel & stick, or cold asphalt applied. In general this product has a high tensile strength and has excellent weather resistance.
A roof coating is a monolithic, fully adhered, fluid applied roofing membrane. Many roof coatings are elastomeric that is, they have elastic properties that allow them to stretch and return to their original shape without damage.
These types of metal roofs typically have panels that run vertically up the roof. This type of metal panel roof is called “Standing Seam” because their prominent visual feature is the raised interlocking seam which joins one panel to the next.