Do not make a roof system or manufacturer selection on the basis of a warranty. Select a system for its suitability to the project, as discussed in System Selection Criteria above.
Do not automatically specify a warranty. Rather, select a system for its suitability for the project, as discussed in System Selection Criteria and Specific Roof System Selection above, and then determine if the Owner’s best interests are served by a warranty.
If specification of a warranty is being considered, review the warranty section of NRCA’s Low-Slope Roofing Materials Guide (or the Steep-Slope Roofing Materials Guide). Ensure that the manufacturer’s standard language is not onerous BEFORE specifying that manufacturer. Make sure that the specified warranty includes:
- Defects in materials and defects for the entire roofing system with all materials and accessories included.
- Coverage up to the basic wind speed identified in the building code.
- No Dollar Limit coverage without prorating.
For government projects, if a warranty is desired, recommend that a Government attorney identify provisions of the manufacturer’s standard warranty that are unacceptable, so that warranty provisions acceptable to the Government can be specified. The following are examples of changes to standard warranties that should be considered for all projects:
- Delete warranty language that takes away the Owner’s rights
- Delete warranty language that excludes other rights and remedies
- Delete warranty language that sets a maximum dollar limit
- Delete or modify the unfavorable items listed above in “Warranty Limitations.”