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21st November 2022, 11:35 AM #1Member
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Exterior plywood for tiled workbench (outdoor)?
Hi all,
I'm building an outdoor bench that will be used for my bbq.
The idea is to make a tiled top.
The question is, is exterior plywood ok to be used as base for the tiles? I was thinking to seal the sides, paint them and paint the bottom. The top will be protected by the tiles.
Do you see any issue?
Cheers
Nicola
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21st November 2022 11:35 AM # ADSGoogle Adsense Advertisement
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22nd November 2022, 11:22 AM #2
Should be fine, Nicola, provided it is thick enough and sufficiently rigid - the slightest flex will crack the grouting.
Your enemies are flexing and moisture. Before tiling, I would coat all surfaces with a good epoxy sealant such as Everdure paying particular attention to the end grain. One coat is not enough, two is minimal, three is better. My technique for each coat is:
- Paint the end grain,
- Paint the other surfaces,
- Repaint the end grain.
You really want the Everdure to soak into the ply. On the first coats, especially the end grain, the Everdure will basically disappear into the timber grain.
Then tile and apply finish coats of paint.
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22nd November 2022, 05:59 PM #3GOLD MEMBER
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Fibre Cement flooring would be my choice.
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22nd November 2022, 10:02 PM #4GOLD MEMBER
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23rd November 2022, 05:01 PM #5Member
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23rd November 2022, 05:52 PM #6GOLD MEMBER
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No treatment required. Second hand building materials would be the best bet for a bit of cheap stuff.
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25th November 2022, 11:52 PM #7
If the bench is left in full exposure then James Hardie Secura or similar would be the way to go. If it's under cover then Scyon or similar. Cemintel make comparable products as do a few others but James Hardie and CSR (Cemintel) are the big players and readily available at Bunnings or any ceilings and linings specialist stores or more dedicated building supplies chains.
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27th November 2022, 04:08 PM #8
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