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Old 04-06-2013, 05:46 PM   #1
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I heard nails pop up from pine boards....


So, if I put 1/2" plywood on top of pine board floor, which is a outside balcony, will the nails be trouble for the future, as in popping up into the plywood? (I wand to eventually put ceramic tile on the ply.....)

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Old 04-06-2013, 06:29 PM   #2
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I heard nails pop up from pine boards....


Wonderboard or duroc is a much better substrate for tile and assuming the pine is 3/4 T&G you dont need the flexural strength of plywood.

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Old 04-06-2013, 06:35 PM   #3
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I heard nails pop up from pine boards....


Tel us more about this outside balcony---pine exterior flooring moves a lot----

If you want to tile out side over that, failure is likely----tell us more.
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Old 04-06-2013, 08:33 PM   #4
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I heard nails pop up from pine boards....


Thanks Mike, I overlooked the outside thing. What do you mean pine board floor, a spaced plank deck ?????
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Old 04-08-2013, 07:42 PM   #5
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I heard nails pop up from pine boards....


whew, first break in days- sory for delay, people. Yes, its a spaced exterior, covered pine floor , say, 1X6's. nails are already popped up about 1/16". Want to put tiles, so do I have to yank the pine and put dowm ply then hardybacker? isnt hardybacker better than durarockk? Or can I go over the boards with something?

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Old 04-08-2013, 09:02 PM   #6
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I heard nails pop up from pine boards....


Still waiting for a picture.
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Old 04-09-2013, 06:06 AM   #7
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I heard nails pop up from pine boards....


You will need something totally different----the wood framing will swell and heave with changes in the weather----plywood ,if used, must be totally waterproofed on the top and edges---

Do not use a cement board over plywood in an out door situation---You will need a waterproof membrane----

What you are proposing is beyond my skill level---failure is almost guaranteed.

As to Hardi Backer / Durrock----I will not use Hardi----to stiff and sucks the moisture out of the thinset.

This is a debate that has supporters on both sides----I won't use Hardi----
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Old 04-09-2013, 08:38 AM   #8
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I heard nails pop up from pine boards....


First of all its an exterior deck, not a "Floor" if I now read you correctly. As the others said, a whole different bucket of worms. You need exterior plywood 23/32. A waterproofing membrane, like Ice dams material covering down over the band beams to a drip edge, then you need lath wire and about 2.5 to 3 inches of green cement into which your tiles are set. Basically a wet set with waterproof mortar.
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Old 04-09-2013, 04:35 PM   #9
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I heard nails pop up from pine boards....


Right, its exterior. A "balcony" which is covered by a "porch" type roof. Yes, some sideways rain could get it wet. But, it is in S Cal.....sooooo dry there. No snow/freezing situations.

I heard hot mop, then "float" cement (on diamond mash/chicken wire stapled down into hot mopped ply), then tile. It WILL have a pitch away from house. So, if this is kosher, do I still need to remove the boards first?
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Old 04-09-2013, 05:01 PM   #10
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I heard nails pop up from pine boards....


Let's back up and talk about the weight of the tile. You do know that tiles weigh a lot, right? You may not even be able to put the weight of the tiles up there. The structure may not even been strong enough to hold the added weight of the tile in addition to the load of people and furniture.

POST A PICTURE of the balcony. That will greatly help in what kind of advice is best for the job.
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Old 04-09-2013, 05:55 PM   #11
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I heard nails pop up from pine boards....


geez, cant get a picture- Im not in Cal anymore. Shoulda taked the picture before, I know. You have a good point though, about considering the weight. Actually, im gonna use porcelain- lighter than ceramic, Ive been told. Also, Im gonna reinforce the beams below- double up on 2X4's.
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Old 04-09-2013, 05:58 PM   #12
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I heard nails pop up from pine boards....


It's not 'lighter' enough.

PICTURES. You keep throwing out terms for things that don't mean what you think they mean (insert Princess Bride sound bite here). It sounds an awful lot like you've got a deck on sleepers laid over a rubber or other membrane roof. That about right? If that's the case then you're REALLY headed in the wrong direction with what you're considering.

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