Reply by reggiek

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Posted on Question about using tile over cedar.

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2240 posts in 3239 days

#1 posted 08-17-2012 03:56 PM

If possible, I would add an underlayment (concrete backer board is commonly used)- it is fairly inexpensive and can be bought at local hardware or big borg stores. Since this is outside, I would use the water resistent version – usually a light green color.

The other issues of using tile on furniture is that it must lay flat and not have gaps or voids underneath it to create flex or torsion – this will cause the tile to crack or the grout to separate (allowing leaks and damage to your underlayment). Underlayment (either concrete backer board – or at least some exterior grade plywood) helps keep the tile flat and helps reduce motion pressure on the tile.

I would also recommend you use a sanded grout (has more flex) and make sure your tile is sealed – or you should seal it with a good water resistent sealer – there are some good products out there to seal and protect the tile from moisture related damage.

-- Woodworking.....My small slice of heaven!

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