Solid Oak Floor on concrete

hundleton1 · 7 Apr 2012

Hi guys I am after some advice, we want to install a solid oak floor in our living room 25msq it's a concrete sub floor, we are looking at Wickes solid oak that they reccoment using it floating with clips, I'm not doing that as a friend did nd had major problems, I am going to glue it down but don't want to do it directly to the concrete floor as I want to add a new DPM as its an old house and am not 100% there is a DPM

So what I am looking to do is lay a DPM sheet then lay either 12 or 18mm chipboard on top and glue the floor to that. I have looked at using plywood but it's gone so expensive compared to chipboard. Ideally I'd like to use 12mm as the floor is 18mm and can't add to much height due to a low celling,

Can you see a problem with this?

Thanks. In advance

crazydaze · 7 Apr 2012

You MUST NOT stick that floor to chipboard,chipboard cannot be used as it does not have enough structual strength, you should be using a decent depth ply.

Why do you want a solid floor? Engineered will look the same, feel very similar and be much much more stable as well as just as hard wearing in your situation.

hundleton1 · 7 Apr 2012

We can't find any engineered that we are happy with. As for the chipboard we ere told by a local floor company that you can't nail to chipboard flooring but you can glue ? As for structual it's t&g chipboard flooring laid on concrete. It can't move ?

tall_tone · 7 Apr 2012

I agree completely with Crazydaze. The chipboard, regardless of how strong it looks is only as strong as the glue that bonds it together. Your wood floor and the glue to bond it down is much stronger than the chipboard and if the wood moves it will rip chunks out of it.

Spend the money getting ply, hire a portanailer and save money not buying glue.

TT

tall_tone · 7 Apr 2012

Alternatively. If the floor is level (enough)
DPM with a liquid Epoxy DPM product, then glue with a modern Silaine adhesive directly to the DPM.
No need to buy Ply or chipboard and you keep the overall height down.

dazlight · 7 Apr 2012

tall_tone said:
Alternatively. If the floor is level (enough)
DPM with a liquid Epoxy DPM product, then glue with a modern Silaine adhesive directly to the DPM.
No need to buy Ply or chipboard and you keep the overall height down.

Was about to say the same thing.
If you use f.ball F75 2 coats can withstand up to 98% RH
You could use a good screed with a high compresson strength to build up the floor if needed. like mapei latex trade plan or laybond ultimate

hundleton1 · 7 Apr 2012

Ok the chipboard is off then, thanks both for the advice. Could not believe the price of ply when I looked. As for the floor it's reasonably level, no worse than envy thing I've seen before.

Would 12mm ply be ok with glue ?

dazlight · 7 Apr 2012

Where u been looking for your ply?
Try a builders yard.
Still think loose laying ply on a sheet dpm isn't a good base to stick to.
I don't do wood flooring though so don't know if it will work.

BigRobCanUFixIt · 7 Apr 2012

what problems are you worried about having by floating the floor?

ive just diyed an engineered floor 22mm thick and its okay a few months in so far. with no probs.

where abouts are you located I would recommend the firm I used if you are anywhere near hampshire.

Rob

HMCFlooring · 11 Apr 2012

dazlight said:
tall_tone said:

Alternatively. If the floor is level (enough)
DPM with a liquid Epoxy DPM product, then glue with a modern Silaine adhesive directly to the DPM.
No need to buy Ply or chipboard and you keep the overall height down.

Click to expand...

Was about to say the same thing.
If you use f.ball F75 2 coats can withstand up to 98% RH
You could use a good screed with a high compresson strength to build up the floor if needed. like mapei latex trade plan or laybond ultimate

#

I'm thirding this epoxy DPM then adhesive is the only way that i would fit a wood floor in this situation. I should know a thing or two about wood flooring to!

Your ply way would be more work for the same/bigger cost. The ply would need plugging and screwing down to the concrete so quite a lot of holes.

Don't float it either, its a crap cheep way to fit a floor.

diynot

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Solid Oak Floor on concrete

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