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Here is the response I received from Alpha Systems in February 2015. I sent them some pictures of my roof and I had some concern. I hope their response helps.
Hello Sir,
Your roof looks fine. What you are experiencing is the oxidation process that the roof membrane goes through as it ages and is exposed to the elements. It does get that ‘alligator’ skin appearance that you have. Over time the white layer will chalk and flake off exposing the black layer that is underneath. The white layer is considered cosmetic and the black layer underneath is the primary protection for your unit. Just because the white layer is going through this process does not mean the roof is going to fail, this is normal and expected. The roof is about 38 mils thick and the white layer is only the top 2 mils of this so you still have plenty of roof left.
There are roof coatings that can be painted on the roof to make it look new and white again, but typically those are only recommended once the roof starts to be more black than white. Until then just the regular cleaning is all that is necessary. If/When you do decide to recoat the roof you just need to make sure to purchase a product that is made for EPDM rubber roofs.
Some people choose not to recoat their roof and let it turn completely black, this is ok too. If you take this route you would just have to start using rubber roof conditioners to make sure the roof does not start to dry out.
Hope this eases your worries.
Thanks,
Monica McCabe
Alpha Systems, LLC.
(574) 295-5206
Fax (574)970-2703
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Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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