Hey there everyone, first and foremost, thank you for taking the time to review and respond.
I see thru the many comments below that PVC (flexible… or just in general) does not play well with asphaltic materials of all sorts and there have been a few work arounds.
We approved an asphaltic adhesive membrane for added protection for the coping with the understanding it would be used with the TPO we approved. The replacement of the existing PVC roof with the TPO did not occur, so the sub consultant used the asphaltic adhesive membrane with the existing PVC roof membrane that wrapped up and over the parapet.
The membrane began to turn to goo in some several spots on the building and now dripping on the façade.
Yet the owner wants an adhesive / membrane that will help tie down the coping and protect against any penetrations used to nail down the coping.
Are there any reasonable solutions (liquid or membrane applied) that can facilitate this owner directed request or solution?