TrevorP
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Just cleaned guttering on single story extension, and noticed that most of the concrete tiles had a large amount of the coarse coating missing, showing areas of bear concrete. My question is....is this ok as I thought that concrete was porous and worried that in time would leak through. Is there something I could perhaps spray on to water proof?
Did take a pic but kept getting "file to big" from album!
Any suggestions would be helpful.
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