APP 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.
APP membranes provide superior tensile strength while maintaining critical flexibility — even in the coldest environments. Additionally, with APP roofing membranes (coated with a proprietary blend of asphalt and atactic polypropylene), contractors now have an efficient mode of application by heat welding, making hot mopping unnecessary.
Systems Technical Data
Find all of the technical documentation you need using the links below.
- Cold Applied: (Introduction & Selection) (Components) (Application)
- Heat Weldable: (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.
APP Modified Bitumen Roofing System
Dibiten
JM is the exclusive source for 
APP membrane. This heat weld applied modified bitumen membrane is a high performance solution for both commercial and residential applications. Dibiten is currently available in the Pacific region.
APPeX® 4.5M FR (2CIN-W/2PIN-W)
The APPeX products provide just the right torch-ability across a wide range of temperature situations and a variety of rooftop conditions. JM APP solutions are known for their ability to remain flexible at low temperatures, resist cracking, blistering, UV damage and oxidation.
