Find the recommended cover board for your next JM project in minutes.
Read how JM Invinsa^® FR Roof Board helped the new roofing system on the Howard Roofing headquarters in Pomona, California save energy, meet guidelines and blend aesthetically with the rest of the structure.
JM is proud to announce our strongest commitment to commercial roofing to date: an EPDM manufacturing facility in Milan, OH.
The JM Peak Advantage Guarantee:
- One of the most respected in the industry
- Only qualified JM Peak Advantage Contractors can offer it
- Only available on qualified roofing systems conating JM roofing products
As roofing evolves it is important to keep up with new materials and technologies. For over 35 years, more than 50,000 roofing professionals have updated their knowledge through the Better Understanding of Roofing Systems Institute (BURSI®), a program of the JM Roofing Institute.
Contractors know it's JM TPO for the best performance. Now you can put us to the test and find out for yourself with the TPO Challenge. Download the schedule below, or for more info contact your sales representative.
Athens Regional Medical Center
faced a considerable challenge during a large expansion program. See how a Johns Manville SBS self-adhered roofing system met their unique needs of noise limitation, limited access and zero fume tolerance in this job profile.
For restricted spaces or roofs with multiple penetrations, SeamFree easily conforms to meet your needs. And when you can't use hot asphalt or heat welding, SeamFree provides an ideal durable waterproofing solution.

Home » Commercial Construction » Roofing Systems

Roofing Systems - Defy the Elements

Johns Manville Roofing Systems is dedicated to helping you defy the elements with the most extensive offering of low slope roofing solutions. To construct highly protective, energy efficient and cost effective roofs, an integrated JM system delivers more value than individually purchased components. Tested and proven to work together, the elements of a JM roofing system are designed to meet the specific requirements of each individual building.

Part of our systems approach is the inclusion of technical and customer support as well as strong guarantees which add peace of mind to the value equation. Single-source supply also means single-source responsibility and single-source dependability. For long-term performance look to JM for advanced capabilities in the building sciences.

Leaders in EPDM

See how our new state-of-the-art plant in Milan, Ohio uses the latest technology to deliver higher-quality EPDM sheets, demonstrating our commitment to staying at the forefront of the roofing industry.

Comprehensive Roofing Solutions

Our portfolio of roofing systems includes a complete line of single ply, built-up and modified bitumen membranes, including Cool Roof solutions. They are complemented by quality thermal insulations, cover boards, adhesives, cements, roof coatings and specialty roofing products — all with the convenience of a single-source provider.

Innovative Products

JM's emphasis on research and development helps us anticipate market needs and meet evolving building requirements with creative solutions.

The science behind our materials and products is extensive. Working in partnership with our customers, JM's new product development teams are challenged to adapt new and innovative technologies that cost-effectively increase the performance of commercial/industrial roofing systems.

The Johns Manville Technical Center in Littleton, Colorado is one of the best-equipped research facilities in the country, with extensive capabilities in structural, chemical, mechanical and thermal analyses. Here, JM scientists and engineers test and develop products to find technology-based solutions for specific market and product needs.

Examples of JM innovations include:

Multiple Cool Roof Systems — to include TPO and PVC single ply roofing systems; and SBS CR and BUR Glaskap® CR reflective, white mineral surfaced cap sheets
Next Generation PVC — Johns Manville's PVC formulation with DuPont™ Elvaloy® KEE technology offering longer lasting protection
JMCleanBond™ — a self-adhering technology for cleaner installation of SBS modified bitumen
Invinsa® Roof Board — a lightweight board that reduces labor and optimizes longevity of the roof system
SeamFree™ Liquid Membrane System — easily applied waterproof barrier for decks with hot asphalt restrictions or numerous penetrations
PermaFlash® Bituminous Flashing System — a flexible liquid-applied flashing system for use on any penetration, even the most challenging

Superior Services

Johns Manville supports our professional partners with an extraordinary collection of services that allow you to work more effectively, expand your professional knowledge, safeguard your roofing investment and enjoy a competitive advantage. Among the services we offer building owners, architects, specifiers and contractors are: