*
Is it possible to install a ceramic tile bathroom floor using 1/4″ luan as underlayment? What about a kitchen or mudroom ceramic tile floor over 3/4″ T&G flakeboard? I am concerned that the luan will delaminate and that the flakeboard alone is not rigid enough handle a tile install. Although laying tile is not my specialty, I have always laid tile over hardibacker, cement board or a mud floor. Does anyone out there have knowledge regarding ceramic tile being installed on these other surfaces?
Fine Homebuilding Recommended Products
A House Needs to Breathe...Or Does It?: An Introduction to Building Science
Allison Bailes is great at explaining complex building science topics in simple terms that anyone can understand. If your goal is a new house or remodel that embodies the best practices that building scientists have to offer, buy this book right away.
QuikDrive PRO300s
Whether you're installing floor sheathing or decking, this tool will keep the installer upright, putting less stress on workers while saving time and energy.
Step Flashing
This 7-in flashing is pre-bent to 90 degrees, making installation along roof-to-wall connections fast and efficient.
11" Nail Puller
Pulling nails is a part of framing, so this tool is always on our belts — the cats paw makes the job easy, plus the company donates to veterans.
Milwaukee Cordless Tablesaw (2736)
This tool is compact and portable, features a riving knife lock/release, and boasts a lightweight design.
Replies
*
I wouldn't use either. Neither are approved substrates for ceramic tile, and in a damp location you can bet your ass it will come back to haunt you.
"If you can't afford to do something correctly the first time, how can you afford to do it twice?"
Ooze
*Like Ooze said, don't do it. Water will soak through grout fairly easily, then soak into the wood below. The swelling of the wood will pop the tiles loose. It won't happen right away, which is perhaps why some people said they haven't had trouble, but over 10 years or so it will happen.
*Use 1/4" hardi backerboard or a concrete backerboard. I always glue and screw the hardi board down and i use thinset and galvanized screws for the concrete board. Dont forget to tape the seams as you go. You dont want any problems with a ceramic tile floor when your done, so do it right the first time!