Spray foam roof over epdm. | Roofing Q&A | Spray Foam Technical Questions and Answers | SprayFoam Magazine Q&A Forums

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Author	Comments
glenngamblin Posted: Apr 04, 2017 06:39 PM	Spray foam roof over epdm. I have a guy wanting a roof sprayed over his existing epdm roof. I cannt find any info if that's an issue, will it stick or do I need to insist on tearing it off?
ErvineFallis https://kingkoating.com/ Posted: Apr 19, 2017 10:53 AM	A spray-foam roof can be applied directly to the old roofing once it is prepped and cleaned up a bit. Not stripping the old roof and sending the debris to the landfill IS also a big green plus. Besides, spraying-over will save the labor costs of stripping the old roof.
foamdork Posted: May 04, 2017 04:03 AM	We have done a few with no problems. We pressure washed after wetting down with TSP and cut out the EPDM around HVAC units and skylights. I know a couple of the system houses sell a cleaner specificaly for prepping EPDM before spray foam. Hope this helps.
glenngamblin Posted: Aug 10, 2017 09:53 PM	Thanks foamdork, after I cleaned it i found the epdm was on top of a layer of water logged fiberboard that was absolute moosh. Stripped all 10000 sq ft off did it right. The test holes I cut out for the estimate happened to be the only dry spots on the roof. Go figure!!
proe fes Posted: Nov 29, 2018 12:29 PM	We're proud to have a long list of satisfied customers and we are willing to provide references upon request. roofing contractors new jersey https://allprofessionalremodelinggroup.com/

Author

Comments

glenngamblin

Posted: Apr 04, 2017 06:39 PM

Spray foam roof over epdm.

I have a guy wanting a roof sprayed over his existing epdm roof. I cannt find any info if that's an issue, will it stick or do I need to insist on tearing it off?

ErvineFallis

https://kingkoating.com/

Posted: Apr 19, 2017 10:53 AM

A spray-foam roof can be applied directly to the old roofing once it is prepped and cleaned up a bit. Not stripping the old roof and sending the debris to the landfill IS also a big green plus. Besides, spraying-over will save the labor costs of stripping the old roof.

foamdork

Posted: May 04, 2017 04:03 AM

We have done a few with no problems. We pressure washed after wetting down with TSP and cut out the EPDM around HVAC units and skylights. I know a couple of the system houses sell a cleaner specificaly for prepping EPDM before spray foam. Hope this helps.

glenngamblin

Posted: Aug 10, 2017 09:53 PM

Thanks foamdork, after I cleaned it i found the epdm was on top of a layer of water logged fiberboard that was absolute moosh. Stripped all 10000 sq ft off did it right. The test holes I cut out for the estimate happened to be the only dry spots on the roof. Go figure!!

proe fes

Posted: Nov 29, 2018 12:29 PM

We're proud to have a long list of satisfied customers and we are willing to provide references upon request.
roofing contractors new jersey https://allprofessionalremodelinggroup.com/

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