SBS Modified Bitumen Roofing Membranes

Johns Manville has developed formulations that enhance the asphalt's overall weatherability by modifying premium-grade asphalts. By combining these modified asphalts with non-woven polyester or glass fiber reinforcements, JM produces waterproofing systems that exhibit tremendous strength, elasticity and weatherability.

SBS is a rubberized modifier that increases the overall performance of the sheet by providing excellent elongation and recovery characteristics. SBS modifiers extend the service range of the product, so that it can be handled in cooler temperatures without cracking or shattering, and in warmer temperatures without softening to the point where it begins to flow.

Systems Technical Data

Find all of the technical documentation you need using the links below.

Hot Applied: (Introduction & Selection) (Components) (Application)
Cold Applied: (Introduction & Selection) (Components) (Application)
Heat Weldable: (Introduction & Selection) (Components) (Application)
Self-Adhered: (Introduction & Selection) (Components) (Application)

Submittal Wizard™

Use the powerful free Submittal Wizard to create your next submittal package. The Submittal Wizard allows you to simply and quickly select the quality Johns Manville products you require for your next roofing project.

To get started, first locate the system page for which you are creating a submittal package (i.e. TPO, fully adhered system). Then select the documents you need within the Components and Application tabs. Once all the required documents have been selected, a link to download the completed package will be e-mailed directly to you.

Please note, by using the Submittal Wizard and clicking on the submittal package you receive, you acknowledge that you have read, understand and accept the terms and conditions of the Johns Manville Submittal Wizard User Agreement.

SBS Modified Bitumen Roofing System — DynaWeld™/DynaGrip™ SD/SA Hybrid System (2FID-SA/HW)

Due to the high demand for Invinsa™ Roof Board in modified bitumen roofing systems, Johns Manville now offers a 2FID-SA/HW specification. The new hybrid specification is a two-ply SBS modified bitumen roofing system over ENRGY 3® insulation and Invinsa. It is installed using a combination of self-adhered and heat-welded application techniques.

The re-roofing of the world headquarters of Chick-Fil-A in College Park, Georgia demanded the best in long-term durability. Invinsa high density polyiso roof board was chosen for its compressive strength and impact resistance. The board's light–weight provided an additional bonus for the contractor — saving 40% of the time projected toward the roof. Invinsa brings both owner reassurance and labor saving efficiency.
Invinsa™ Roof Board is an integral component in a Johns Manville single ply roof system, as well as a self adhered modified bitumen system, is Invinsa™ Roof Board. This lightweight board optimizes the long term performance and longevity of the roof. Its reduced weight provides labor and installation savings, including easy hoisting and maneuvering around the roof. Easy scoring and cutting allow for tight fabrications around roof penetrations.
A unique self-adhering technology allows JMCleanBond™ SBS to be installed without the need for hot asphalt or torch welding. This makes it an excellent re-roofing choice, because it is faster, cleaner and creates minimal disruption for building occupants.
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.
What do you get when you use a 150+ year-old company with a 25 year heritage in SBS? The brand that's most preferred by roof consultants and architects. Download the information below to learn more.
With our products listed and tested in over 200,000 UL and FM assemblies, we have the depth and breadth to offer what is best for your roof. Download the information below to learn why JM SBS systems solve a multitude of roofing challenges.