Not all roofing materials are created equal. There are those, like the Thermoplastics PVC/TPO Single-Ply, that are recognized to be a cut above the rest. This particular kind of material is best suited for commercial establishments with flat roofing surfaces. What is it exactly and what makes it effective? Find out in this Commercial Roofing Series post from CMS Roofing.
Keeping the Plastic Real
Thermoplastic is a chemically produced material that does not have any chemical cross-linking. It’s most outstanding feature is that it can be cooled and reheated repeatedly with no problem to its composition. This flexibility also allows it to be easily molded, shaped, or installed, with only the use of hot air or solvents.
The five sub-categories of Thermoplastics are:
- PVC Alloys
- Chlorinated Polyethylene
As your trusted roofing contractor in Charleston, SC, we note that the most reliable are perhaps PVC or TPO.
PVC (Polyvinyl Chloride) – This type of sheet requires the method of calendaring, spread coating or extruding, and reinforcement with polyester or scrim. It also contains additives such as plasticizers and stabilizers so that it can become more flexible. PVC sheets usually come at 6 to 12 feet, with 45 to 90 mils thickness. To seal the seams, chemical welding works best. PVCs usually come in white and gray, but can also be manufactured in different colors.
TPO (Thermoplastic Olefin) – TPO sheets are composed of polypropylene and ethylene propylene polymners. To produce it, the sheet undergoes any of the processes of calendaring with lamination, extrusion with lamination, or extrusion-coating. To further reinforce the product, polyester is also part of its composition. Like PVC, TPO sheets have widths from 6 to 12 feet, but its thickness start instead at 40mils to 100mils. TPO membranes usually just come in white color.
Benefits and Advantages
Perhaps the biggest selling point of these Single-Ply Thermoplastics is that both the PVC and TPO are able to withstand the battering of UV rays from the sun. Other roofing materials simply cannot resist the radiation of heat from outside to inside as efficiently. In addition, because of its composition, the adhesives do not sustain damage easily, as it tends to cool down easily.
If you also need to get roof repair in Charleston, SC, CMS Roofing will find it much easier to apply these thermoplastic membranes. We are more than capable and knowledgeable when it comes to dealing with thermoplastic materials for your commercial roofing system.
Contact us at (877) 425-4121 to know more about our range of residential and commercial roofing options.