Filling joints between plywood sheets before laying Amtico

[andyfr]

Hi

We have just built an extension for the kitchen and I am going to lay 40m2 of Amtico tiles. I have put 8x4 sheets of 6mm ext ply down but wanted to know what to fill the gaps with.

I have laid Karndean tiles before but over a much smaller area so managed to get away without there being any gaps.

Any advice appreciated.

 

[HERTS P&D]

Use car filler, (P38).............................it doesn't shrink and quick to dry and sand down to a perfect finish.

Don't over do the hardener in this hot weather or it will go hard before you've had a chance to spread it in.

Andy.

 

[andyfr]

That's a good idea, I never would have thought of using that.

Thanks.

 

[mattysupra]

the product designed for the job is skim coat.

FBALL 500 its trade name from fball. Not sure what other companys call it.
Karndean also supply it, i think they call it "skim coat"

This may be of use to you - http://www.theflooringforum.com/viewtopic.php?f=32&t=368

its pictures and a written guide of how to use and prep a wooden + concrete subfloor. Skimcoat is being used halfway down the page.

 

[andyfr]

Thanks Matty, that looks excellent. I'll get some of that I think.

 

[mac391]

can i ask what the 6mm ply is laid on ?

 

[andyfr]

Yes, it's laid on 22mm chipboard flooring which was screwed and glued.

 

[mac391]

Sorry Andy, i meant the sub-floor !! Is it timber joists or concrete etc ?

I presume timber joists if was screwed and glued.

 

[andyfr]

Yes, it's timber joists. I assume you wanted to know because of the flexibility of timber joists?

 

[mac391]

Oh that's fine.. no i was wondering because a lot of extensions have concrete subfloors which cause problems without dpm's etc.

As mattysupra said, it's f-ball 500 you need, www.f-ball.co.uk They don't sell it direct but have a list of suppliers or internet to buy it from

 

[andyfr]

Cheers Mac. I will look for a supplier.