Single-Ply
ROOFING SYSTEMS
CERTIFIED PROTECTION | NDL WARRANTIES | FINANCING AVAILABLE.
Grandmark
Single-Ply TPO Roofing Systems
Short for thermoplastic polyolefin, TPO is a single-ply roofing membrane that offers excellent performance at a cost-effective price. Heat-welded seams provide superior strength. TPO’s long-term heat, UV, and natural fungal resistance, plus flexibility without need for plasticizers also make TPO a reliable low-slope roofing system.
In the 20+ years that TPO has been in the field, it’s become one the most popular products used for low-slope roofing. Over 1 billion square feet are installed annually, making up over 50% of single-ply roofs being installed today.
What System is Best For Your Building?
Contact GRANDMARK Team to evaluate how to get the most out of your roofing system.
Could not be happier with the professional, sharp-looking job and clear expectations. McKay evaluated the area where we needed guttering, an area another company had said couldn’t be remedied because... read more of two different levels of pitch on the roof over the patio. The other company suggested we lay down sand bags to prevent flooding into the patio (not exactly chic for a physician’s home). McKay had confidence in his installer to customize for us, and the installer proved to be worthy of that trust. Although I don’t speak Spanish, McKay assisted us in bridging the language barrier to be clear about how the construction would take place. The installer and his assistant worked steadily and carefully and actually made our patio look more cohesive with the rest of the house. I saw the smile on the installer’s face when he surveyed the great job he had done. He literally enjoyed doing the tedious, precise work, which told me he cares about the client and takes pride in his skill. The cost was twice what the other company was going to charge to patch together a compromise, and when I saw the finished product, I understood why. We paid for experience and craftsmanship, and it was well worth it. We will call them for roofing when the time comes!!
Dealt with Carlos. He was very informative and friendly from day 1. He was able to see me right away and I loved that he came prepared with a slide... read more on his laptop. He also brought some roof samples to look at which was nice. Throughout the whole process, the office kept me well informed and up to date. Carlos was able to get the color of roof that I wanted even when it wasn't on the brochure. They went above and beyond the work I was expecting and now my house looks 20 years younger and we love it! Yes.... I would recommend them!
I want to state I did not know anyone at Grandmark before I started the process. Justin was communicative during the whole process of the roof installation. His crew was... read more always on time and cleaned up after themselves daily. Great work from start to finish!
Grandmark ROOFING
Commercial Roofers
The reason is that single-ply roof membranes are flat roofing which makes them perfect for the large space commercial buildings cover. You might ask; but why can’t I use a flat asphalt shingle roof? Well, flat shingles are not as durable as single-ply roof membranes because flat shingles are made from different materials. For flat shingles, water can get into the asphalt layer and since the shingles were installed as a flat roofing system, the water will not be able to get out thereby damaging the roof.
20,000+ Satisfied Customers
We have provided excellent services to thousands of customers, and we’d love for you to be able to experience the quality of our technicians!
Professionals
Our team has extensive professional training and a solid skill set to handle your project.
Locally Owned
We are a local, family owned business and serve the greater Central and Northern California area.
100% Satisfaction
We are professionals and proud of our work. If you aren’t satisfied, let us know and we will make it right!
Thermoplastic Polyolefin (TPO)
TPO is gradually becoming the industry’s favorite single-ply roof membrane and deservedly so. TPO is a thermoplastic single-ply membrane that comes with a polyester reinforcement base called scrim.
This is to make it adaptive for expansion after heat exposure. This is why a TPO roof will retract back to its original physical appearance after being exposed to hot air.
This is also why TPO doesn’t crack. TPO can come in white, grey, and tan colors which makes it good for reflecting sunlight and saving you money on electricity. It also distributes heat from the sun well enough to prevent excessive heat in the building. However, TPO has a shorter lifespan than EPDM. As TPO ages, it becomes less flexible which reduces its ability to withstand puncture, eventually causing it to crack open.
Although the price of TPO and EPDM can be close, you can still find TPO membranes that are far cheaper than EPDM.
Ethylene Propylene Diene Monomer (EPDM)
EPDM is the most common thermoset single-ply roof membrane and it has been dominating the industry for more than 50 years. However, it is rapidly losing domination to newer single-ply membrane technologies.
EPDM is a compressed synthetic polymer that is installed as large sheets. It comes in only black color which makes it poor for holding heat from the sun therefore, your workers will always have to endure excessive heat.
It also cannot reflect sunlight and that means you won’t be able to save money on electricity. The rubber material also has a problem of elasticity as it might not retract well after being expanded from heat instead it will squeeze. This leads to more problems for EPDM, it cannot withstand punctures like newer single-ply membranes thereby making it susceptible to leaks.
All in all, EPDM is not an industry leader for nothing, it has major benefits that make it a good option. It is easy to repair and it generally has a longer lifespan than TPO.
Both single-ply roof membranes have unique advantages that make them a good option for your commercial or industrial building. In making your choice, consider your budget, your geographic location considering its regular weather conditions.
If you are still not sure of which you want, seek the advice of a roofing expert to help you choose the single-ply roof membrane that is suitable for your building.