Designing Kitchens and Bathrooms - Condition of concrete bed for tile?
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Jebensch
02-16-09, 11:25 AM
I took up a couple of tiles in my bathroom to see what shape the concrete is underneath. The area pictured is right next to the plumbing for the shower/tub, and a couple of the tiles were already loose, so I'm hoping the concrete revealed is as bad as it's going to get in this small room (9x6')
Can I get away with mortar/thinset and then tile? Do I need to use a membrane first? How bad must it be for me to HAVE to re-surface the concrete first? I hope I'm not there!
http://farm4.static.flickr.com/3462/3285451960_c4339de232_o.jpg
http://farm4.static.flickr.com/3224/3284631537_8a09bd2ed3_o.jpg
Can I get away with mortar/thinset and then tile? Do I need to use a membrane first? How bad must it be for me to HAVE to re-surface the concrete first? I hope I'm not there!
http://farm4.static.flickr.com/3462/3285451960_c4339de232_o.jpg
http://farm4.static.flickr.com/3224/3284631537_8a09bd2ed3_o.jpg
HotinOKC
02-16-09, 03:28 PM
Hmmmm,
You will want to clean up all that old adhesive so there's just a clean slab left. Are there any height differences on those cracks? If so, tile is probably a no-go. I would definetly put down a membrane otherwise, like Noble CIS and a good thinset.
Sheet Membranes for Waterproofing, Crack Isolation and Sound Isolation (http://www.noblecompany.com/Products/SheetMembranes/tabid/58/Default.aspx#products)
You will want to clean up all that old adhesive so there's just a clean slab left. Are there any height differences on those cracks? If so, tile is probably a no-go. I would definetly put down a membrane otherwise, like Noble CIS and a good thinset.
Sheet Membranes for Waterproofing, Crack Isolation and Sound Isolation (http://www.noblecompany.com/Products/SheetMembranes/tabid/58/Default.aspx#products)