
JM Peak Advantage® Guarantees
Johns Manville's financial strength allows us to provide some of the strongest and most comprehensive guarantees in the roofing industry.
Even if you never have cause to fall back on the JM Peak Advantage® Guarantee, Johns Manville Roofing Services provides you with additional value by offering assistance to the building owner throughout the life span of the agreement.
By purchasing a Peak Advantage Guarantee, you have access to:
- Expert installation by approved JM contractors
- Experienced technical assistance
- Timely issuance of all guarantee documents
- Efficient processing of any claims or complaints
- Prompt service from highly trained personnel
JM offers 10-, 15- and 20-year No Dollar Limit (NDL) guarantees depending on the roof system selected. For more information about JM Peak Advantage Guarantees, you can download the following documents:
- Understanding Your JM Peak Advantage Guarantee Overview
- Peak Advantage Guarantee Specimen
- Single Ply Systems – Charges and Requirements
- Bituminous Systems – Charges and Requirements
- JM Peak Advantage Guarantee Solar Installation Policy
You can also visit the Guarantees section of the Roofing Toolbox to view additional documentation.
Field Technical Staff to Inspect All Applications
To ensure the quality of the roofing installation, JM's field technical staff around the country monitors roofing applications during installation and makes a final inspection on each guaranteed roofing system upon completion. These roofing experts ensure the roofing system meets all the qualifications for a JM Peak Advantage Guarantee.

