Browse Forums Flooring & Floor Covering Re: General cost of laying tiles 13Feb 24, 2007 8:25 pm sehnaz1 Just read that this form of underlay contains a crystalline silica which is considered by some countries as cancer causing.....!!!This is a worry. They are recommending cutting this underlay outdoors...! Think i might give this underlay method a miss. Anyone else have an opinion on this? This info comes from a PDF from James Hardie on "how to use ceramic tile underlay". I've used it in my bathroom and really don't consider it a propblem. It only becomes a problem if the silica dust is released by cutting with things like saws etc. If you cut it with a proper cutter, there is no dust. I would still wear a mask to be on the safe side. The manufacturers list all the correct warnings and precautions that should be followed. If all you can see are obstacles, you have lost sight of the goals You should check your detail drawings, it may show downpipe within brick pier. 14 14099 I'm about to put down some Merbau. Is it necessary to oil underneath the boards before laying? 0 1930 Hey There. No problems re jumping in. My original question was "should I have waterproofed" the concrete slab before putting batons down. We have been told we should… 7 4327 |