attaching EPDM to Tar and Gravel


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Old 08-21-05, 09:37 AM
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attaching EPDM to Tar and Gravel

Ny neighbor's roof is tar and gravel as is mine at the moment. I wish to change it to EPDM but the EPDM installation manual doesn't mention how to connect the EPDM membrane to an old weathered tar and gravel. Any ideas?
thank you
 
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Old 08-22-05, 08:36 AM
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That's because it CANT be done asphalt and EPDM are incompatable materials.

You need a seperation layer of insulation board.
1" of PolyIso works great. Comes in 4' x 4' or 4' x 8' boards, fasten through the built-up roof with screws and plates to the wood?? deck.
Now you have a clean and level surface to fully adhere an EPDM membrane.

Good Luck!
 
 

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