Laying duoplank on new concrete floor - newbie

[barnster]

Excellent forum - really handy.

I've just had a new concrete floor layed with a proper DPM and 3 inch screed. I understand I've got to wait for about 3 months before the concrete dries. Am looking to use oiled european oak duoplank (nice and stable). It'd going to cover about 60m2, across 4 rooms.

Wonder if anyone can answer my newbie questions:

1. From what I understand, glueing the boards down will give the best 'sound', a nice solid feel, rather than a 'tappy' sound. Is this right?

2. Can the board simply be glued directly to the concrete? Is this the best approach?

3. Do I need to use another DPM or liquid DPM?

4. The screed is very smooth and level. Do I still need to use a leveling compound?

5. Would I need to introduce 'breaks' in the floor, between rooms etc to allow for expansion?

All advice much appreciated.

 

[WoodYouLike]

Wonder if anyone can answer my newbie questions:

1. From what I understand, glueing the boards down will give the best 'sound', a nice solid feel, rather than a 'tappy' sound. Is this right?

Hmm, that's what I would call more down to personal preferences. In our showroom the duoplanks are installed 'floating' and we hear frequently from visiting clients that it sounds really solid.
It's down to using proper insulation to be honest, but once again, personal choice and preferences.

If you glue the boards down, make sure you use a notched trowel.
And it is always highly recommended to treat every room as a separate room, meaning installing thresholds in between to prevent problems in the event something happens (accidents, leaks etc) in one of the room effecting the whole lot.

Hope this helps.

 

[mattysupra]

And also ....
no you don't need any other type of dpm if glueing down, if you let the screed base dry properly first.
You should always put a smoothing compound down. Prime and use acrylic or water based compound. never use latex when you are glueing to the subfloor.
And i much prefer glue down method. But as woody said ' Hmm, that's what I would call more down to personal preferences '