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Old_school (Old_school)
Senior Member
Username: Old_school

Post Number: 1228
Registered: 01-2009
Posted on Tuesday, January 08, 2019 - 05:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Is it worth saving? There had to be a reason that they sprayed to coating over it. Is it dry and cracked? did you try a power washer? good luck with that one.
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Slatesaver (Slatesaver)
New member
Username: Slatesaver

Post Number: 1
Registered: 01-2019
Posted on Tuesday, January 08, 2019 - 08:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only) Ban Poster IP (Moderator/Admin only)

Hello, We're trying to remove a bitumen coating from a 8500m2 slate roof. We're trying to find a method of cleaning the tiles so we can sell them on or use them. There's about 3-5mm of bitumen.

We took a sample tile and coated it in a soy based solvent, which cracked it, and the we let it soak in a "heavy duty" Cleaner overnight. And a pressure washer did the rest. Although this worked, its a lengthy process for 1 tile, and we have an entire roof to do.

If anyone has ideas, or experience in this sort of cleaning help would be appreciated.

Thanks.

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