I have a felt roof on the top of my garage and wanted to know if I can apply your Fibrelast GRP roofing materials directly over the top without using any OSB decking. John Shury Staff member While it can be done, it’s really not recommended and could cause you all kinds of problems in the future. Always better to be safe than sorry and put that extra bit of cash into stripping the existing surface, laying some fresh boards and applying from scratch. If you want to over-coat your existing surface, I would recommend you check out Fibrecoat or Overcoat . Posted on Jan 19th, 2018 View in context
While it can be done, it’s really not recommended and could cause you all kinds of problems in the future. Always better to be safe than sorry and put that extra bit of cash into stripping the existing surface, laying some fresh boards and applying from scratch. If you want to over-coat your existing surface, I would recommend you check out Fibrecoat or Overcoat .
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