Hello, I am helping a company taht has a roof protected with a membrane that feels like pvc, be it or not, after 10 years it has become stiff and at some places is breaking ans the joints are going separated. Does any one have any recomendations on how to repair it?, I believe there are some products to return the membrane it`s flexibility and make it last longer. I read somewhere that UV rays make oils from some polymers go away??? Thanks in advance
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