quartz tiles

[ajs201277]

hi everybody i have recently been told by a tile supplier that it is not recommended that i put heat mat under tile heating under quartz tiles has anyone heard this before if so could they explain why thanks alot

 

[White Room]

Worth a read http://www.tilersforums.com/new-members-say-hi-here/37316-help-quartz-tiles-lifting-when-uth.html