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Tile Adhesive, Cement (Tile Mud)
Tile Adhesive / Grout Advice
Self Levelling Compound Has Hairline Cracks After Walking Over It. 20mm Insulation Boards Underneath - Too Much Flex?
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[QUOTE="Jon_Hall, post: 980292, member: 56786"] Hi, it is going to be difficult to explain exactly why the SLC has cracked, it could be because of direct sunlight on the product causing it to dry out too quickly, trafficking or a product issue, which is vary rare. Ideally you should rip up and start again, but if this isn't an option I would do the following checks. First thing I would do is run a level over the floor to check that nothing has pulled in too much (shrunk), if this is the case the leveller will have a dip in the middle, and the outer edges of the floor will sound hollow and be the high points. Next I would remove a small section of the SLC in the area where there are the most cracks, to see if it is well bonded to your insulation board. Traffic the floor to see if you can feel any movement, stand with a foot either side of a crack shift your weight, see if the crack moves If all seems to be ok then you may get away without ripping up, I would fix the Ditra heat straight on to the cracked leveller as it also works as a decoupling membrane. [/QUOTE]
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Tile Adhesive, Cement (Tile Mud)
Tile Adhesive / Grout Advice
Self Levelling Compound Has Hairline Cracks After Walking Over It. 20mm Insulation Boards Underneath - Too Much Flex?
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