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Superior Commercial Roofing Starts with Superior Roofing Manufacturers

We want you to reap all the benefits of materials from leading roofing manufacturers. That’s why we hand-pick roofing systems that are dependable and of the highest quality.

Additionally, we ensure that our commercial roofers are well-educated in the installation, repair, and maintenance of these high-quality roofing systems from leading manufacturers—so you can rest easy and know that the roof you have is the best roof you can get.

The Roofing Manufacturers We Work With

We are a proud member of many professional and trade associations—at local, regional, and national levels. These memberships help us stay updated on the latest industry news and best practices. It also gives us more opportunities to work with leading manufacturers in the commercial roofing and specialty roofing industries.

Each roofing manufacturer offers specific high-quality roofing materials—and each roofing system comes with specific installation, repair, and maintenance methods. Being educated in these methods allows us to continue working as preferred installers and leaves you with a reliable and long-lasting roofing system.

2001 Company

We’ll turn your flat roof into a breathing roof that becomes “vacuum-packed” when the wind blows and exhales moisture after the wind stops with a 2001 Company roofing system.


Reinforced liquid acrylic roofing membrane and waterborne coating systems from Acrymax protect the roof that protects you. These systems can be adapted to nearly any application.


You can get all the benefits of a protected membrane roof when we install Hydrotech roofing products, including waterproofing, green roofs, amenity decks, and more.


When it comes to metal roof systems, metal walls, accessories, and much more, we turn to the products manufactured by the innovators at ATAS international.

Carlisle SynTec

Roofing systems from Carlisle SynTec include EPDM, TPO, PVC, and FleeceBACK—and we hold the distinction of having over 1,000 “Perfect 10” installations.


Commercial roofing from CertainTeed Saint-Gobain includes exclusive systems like Flintlastic® SA Cap, SmartFlash® ONE repair resin, and SMARTCOAT® restoration products.


Custom-fabricated materials from Duro-Last roofing systems come with proven performance, in-house assembly, and Deck-to-Sky and Edge-to-Edge approaches.


Fabral is “so much more than metal” with customized metal roof design and various architectural products for a wide range of commercial applications.


Commercial roofing systems by FiberTite can be found protecting some of the world’s most recognizable brands. These industrial coated roofs can last for 25+ years.


We are a Master Contractor for Elevate, a leading manufacturer of metal, asphalt, PVC, TPO, and EPDM roofing systems—plus insulation and enhancements.


GAF supplies commercial roofing solutions that include materials like Mod-Bit SBS and APP, TPO, PVC, roof coatings, Polyiso insulation, built-up systems, and more.


For metal roof systems, roll roofing products, fluid-applied membranes, green roof solutions, plaza deck materials, and more, we turn to Garland.


With products like EPDM, TPO, and POLYISO, Genflex makes environmentally friendly decisions and develops time-saving, money-saving solutions for you.


Metal building envelope systems from Imetco come with benefits like wind-uplift analysis and performance testing—and installation by GSM Roofing, of course.

Johns Manville

Johns Mansville manufactures commercial membrane roofing materials, including fibers, nonwovens, and insulation that meet the highest quality standards.

Ludowici Roof Tile

As a Crown Roofer for Ludowici, we have used this beautiful, customizable tile backed by a 75-year warranty to enhance many historic and new buildings.


Metl-Span is an insulated metal panel manufacturer that’s established as a pioneer in the industry, supplying state-of-the-art commercial/industrial materials.

Peterson Aluminum

Wall systems, metal roof systems, and exposed fastener systems are some of the architectural roof and metal wall solutions provided by Peterson and PAC-CLAD.


When durability and sustainability matter, we turn to Rheinzink, the world’s leader in roofing, facades, and roof drainage solutions made from titanium zinc.


For roof access that’s always OSHA compliant, we trust SafePro for items like roof hatches, roof hatch safety rails, automatic roof hatch openers, and more.

Sika Sarnafil

We have been awarded the distinction of Elite Contractor for Sika Sarnafil, a leader in the worldwide market for thermoplastic, single-ply commercial roofing supplies.


For decades of experience in supplying SBS-modified bitumen, synthetic single-ply PVC, and PMMA/PMA liquid membranes, we turn to the experts at Soprema.


When it’s time to construct a low-slope commercial roof, we buy from Tamko, an industry leader in nonwoven polyester mat and SBS-modified roofing materials.


Tremco supplies waterproofing agents and sealants with PUMA technology and more for complete building envelope systems that repel all the elements.


Specialists in EPDM, PVC, TPO, and VersiFleece, Versico is a go-to supplier for sustainable, economical re-roofing solutions with efficient application processes.

We’ll Pair Your Roof with the Best Roofing Manufacturer

The best products at the best prices, with the best results and lasting quality, are the characteristics GSM Roofing looks for in roofing manufacturers’ products. We only work with the best, so we can pass that sustainability, efficiency, and economy along to you, our valued customer.

Let’s get started today by talking about your commercial roofing needs, along with which one of our roofing manufacturers supplies the materials that will give you the longest-lasting, highest-quality roof.

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I just wanted to send a quick thank you to all of you for your help in getting together the final invoices for Reading and North Temple. You all are the best and it is always a pleasure working with you!

Have a great day,

Cindy Yates June 28, 2022