[font size="3"]One Keystone (Thor) owner's experience with TPO roof:
[a href="http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/28784562.cfm"]http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/28784562.cfm[/a]
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Scary!
You can that again
I had to read it twice, still don't believe it!
MDF for a roof!
Hence my thought about a spray on liner like Linex or Bullet. It's a hard coating to protect against the inevitable scrapes. Come to think of it I don't know why RV manufactures don't do that in place of existing roofs. Throw on the MDF and coat it, voila, instant water proof hard surface roof.
I prefer Aluminum"num"num" (metallic echo) roof, floor, walls, and frame! ;)
Had to fix a few things on the 2010 Aluminum Mighty 11, but it's mostly like being the Maytag Repairman for me! 8-)
[quote timestamp="1457464567" author="@mitch" source="/post/19317/thread"]Hence my thought about a spray on liner like Linex or Bullet. It's a hard coating to protect against the inevitable scrapes. Come to think of it I don't know why RV manufactures don't do that in place of existing roofs. Throw on the MDF and coat it, voila, instant water proof hard surface roof.[/quote]That would be a alternative to a membrane roof, but it would drive up the cost, something that the MFG is set against.