EPDM sealant
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Johnp57
Labourer
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Joined: Wed Jan 03, 2024 8:35 pm

EPDM sealant

by Johnp57 » Wed Jan 03, 2024 8:43 pm

I have a flat EPDM roof which has a slight leak somewhere. I can't see any tears so I'm assuming that one of the lap joints is faulty. I'm thinking of using a flexible sealant painted along each join. All of the sealants that I've seen do not specifically recommend use on EPDM. Does anyone have first hand experience of a sealant that will work on my roof?

stoneyboy
Project Manager
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Joined: Wed Dec 10, 2008 6:44 pm

Re: EPDM sealant

by stoneyboy » Mon Jan 08, 2024 10:23 pm

Hi johnp57,
Rubber products and their derivatives do not like solvent or acid so suggest you try a neutral cure silicone. Its success will depend on feeding the silicone into any loose overlaps which must be perfectly dry. Not a job fir this time of year.
Regards S

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