R
roligan
Recommended thickness for 600mm x 400mm travertine tiles for outdoor use
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isn't it too cold this time of year for exterior laying dave?Because the body of travertine is quite holed , even a top quality trav has these but in smaller size compared to lower grade , these can retain water and in the winter months these pockets of water freeze , this then expands and can crack thinner stone.
You can buy 38mm trav which is specifically for exterior use.
With it being a thicker material it is less likely to succumb to such stresses.
Hope that helps.