Engineered Wood Floor installation Method - glue , gap

[HelpDIY]

Dear Forum

We are going to have engineered wood floor installed underneath the existing skirting (skirting bottom to be cut to slot in the woodfloor), we are confused by the advice given by two woodfitters

1) one said, if we are going to have underlay (thickone) then there will be 3mm gap between the bottom of the skirting and the new woodfloor. However, if we don't want this gap then we need to have plywood + underlay. He will nail every 5 board and may apply ahesive between tongue and groove

2) another said all we need is the underlay and engineered woodfloor and he will glue them together. Would this give a rigid floor or not

3) What is the best glue for engineered woodfloor

4) what is the min gap and where they should be (between the wall and the edge of the woodfloor or between the bottom of the skirting and the woodfloor or both

Thanks again for your advice

 

[WoodYouLike]

Plywood, underlayment, glueing all T&G AND nailing every 5th board? Rubbish. It is either/or. Either you nail every board and don't use underlayment or you use the floating method on underlayment.

Number 2 sounds better.

AS for expansion gaps: the wood-engineered floor needs a expansion gap of 10mm all around the perimeter (also at doors, patio doors, fire-places, radiator pipes etc etc). If you plan to undercut the skirtingboards it depends on the thickness of the skirting, which normally are at least 15mm, not?

If you don't undercut the skirtingboards you will have to leave a 10mm gap in front of them and cover the gap with for instance solid Oak flat beading.