Installation Instructions

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14. Can I install RoofKit EPDM membrane directly over
an existing roof?
Yes, but a new commercial grade roof Insulation board,
OSB board, or plywood is required.
15. How do I fasten the roof insulation board?
Use RoofKit plates and screws, installing a minimum of
10 plates per 4' x 8' board. (See Application Guide.)
16. Can I apply RoofKit EPDM membrane directly to a
plywood surface?
Yes, making sure that the surface is clean, dry, even, with
no sharp corners.
17. Can I install roof insulation board over an installed
EPDM membrane system?
No, this is not recommended.
ADHESIVES
18. What adhesives can I use to adhere the membrane to
the roof surface?
RoofKit Latex Bonding Adhesive, Contact Adhesive, or
Multi-Purpose Adhesive.
19. What adhesive must be used for membrane-to-
membrane applications?
Use only the RoofKit Multi-Purpose Adhesive.
20. How do I use the RoofKit Latex Bonding Adhesive?
Apply Latex Bonding Adhesive to the substrate using a
large, thick-nap paint roller. Spread a sufcient layer of
adhesive so the roof surface is completely covered. Roll
the EPDM membrane into the wet adhesive. Then, using
a stiff-bristled push broom, apply sweeping pressure to
ensure a smooth application of the membrane. Do not use
Latex Bonding Adhesive on metal surfaces.
21. At what temperature can I apply the RoofKit Latex
Bonding Adhesive?
The temperature must be above 40 degrees F during
the project and for no less than 72 hrs. after project
completion.