TPO (thermoplastic Polyolefin) is a single-ply flat roofing material created from a combination of plastic and rubber. The result is an ideal commercial roofing system that is reliable, cost effective, energy efficient and easy to install.


Thermoplastic Olefin (TPO)

TPO membranes are produced by calendering with lamination, extrusion with lamination, or extrusion-coating techniques. TPO sheets are a blend of polypropylene and ethylene propylene polymers and usually are reinforced with polyester. TPO sheets contain colorant, flame retardants, UV absorbers and other proprietary substances to achieve desired physical properties.

Sheet widths range from 6 feet to 12 feet wide

Sheets are typically 40 mils to 100 mils thick

Seams are sealed by heat welded with hot air|


TPO membranes Commonly are white or black

PVC sheets are produced by calendering, spread coating or extruding, and typically are reinforced with polyester or glass-fibre mats or scrim.

PVC sheets contain plasticizers and stabilizers, as well as other additives to impart flexibility and achieve other desired physical properties. Some membranes are available with nonwoven fleece backing adhered to the underside of a sheet.
Sheet widths range from 6 feet to 12 feet wide.
Sheets are typically 45 mils to 90 mils thick.
Seams are sealed by heat or chemical welding.

PVC membranes are produced in numerous colors, though gray and white are the most common.

Modified Bitumen
Polymer-modified roof membranes are composed of

reinforcing fabrics that serve as carriers for the hot polymer-modified bitumen

as it is manufactured into a roll material.

MB roof system membranes are composed of multiple layers, much like BUR membranes. MB roof systems typically are installed as a two-ply system and almost always are fully adhered.

There are two types of MB roofing membranes:

SBS polymer-modified bitumen membranes commonly are installed in hot moppings of asphalt (similar to BUR systems) or cold adhesive. Some SBS modified membranes are self adhering; that is, they contain an adhesive backing.
APP polymer-modified bitumen membranes typically are heat-welded or torch-applied.

Generally, APP modifiers impart a “plasticized” quality to asphalt, and SBS modifiers impart a “rubberized” quality to asphalt. MB membranes and EPDM a thermoset membrane, often are confused by consumers because of colloquialisms used by roofing contractors.

MB and EPDM membranes are sometimes called “rubber roofs.”

Modified Bitumen surfacings for MB membranes include aggregate surfacing, mineral surfacing, metal foil-laminate surfacing and smooth liquid-applied surfacing.
We can help you to decide which will work best for your building – residential or commercial.
If you are planning to install a flat roof for your building, the best thing that you can do is to contact us with our extensive experience working with commercial roofing systems.