Luan Plywood Underlayment For Tile, Not A good Idea?
Using Luan underlayment for tile is not a good idea, even if you bury it under other layers. Luan plywood under tile, can compress up to half it's original thickness in high traffic areas.
Luan Wood Video Series
Bending Luan Wood Video
Installing Luan Wood Video
Cutting and Installing Vinyl Over Luan
Installing Luan Over Subfloor
Laying laminate over Subfloor
Making Tile Flush With Subfloor
Attaching Luan To Subfloor
Working With Luan For Do It Yourselfers
Under kitchen floors in particular, where the floor had only recently been laid under tile, there can be massive depression of the underlayment. So bad, that it will need to be redone. Luan near appliances under tile, is again asking for trouble. It can compress from 1/4 inch thickness down to 1/8 inch thickness. Luan isn't like other plywood underlayments like mahoany as it has a high oil content that will not allow for a good bond. Using luan underlayment with natural stone such as tile or even ceramic is not a good idea, and I recommend that you hesitate to use it as such.