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Reroofing |
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Recommendations
The following chart lists recommendations, by membrane type, for recover of an existing membrane. Because of the complexity of recover, no
set of recommendations can take into account all of the variables which may exist on any particular job. It is the responsibility of the design
professional to thoroughly evaluate all of the existing conditions involved in a specific project and choose an appropriate system. No JM
Roofing System Guarantee will be issued on any reroofing project unless specifically approved prior to the start of work. For
assistance and approval, contact a JM Technical Service Specialist.
Recommended Specifications
BUR or Modified Bitumen |
R-1-4
R-5-4
R-2
SW-2
SW-4*
SP-2
SP-3
SP-4*
SP-5 |
* SW-4 & SP-4 acceptable only with approval of JM Technical Service and only when using Fiber
Glass Roof Insulation. |
