Laying solid wood floor onto concrete

Engineered flooring or solid planks, engineerd flooring suffers less from expansion movement
Better to have a floating floor, use a underlay with a built in dpm (moisture membrane),something like 'Sonic Gold' wouldn't glue it down,when you laid the flooring you need to leave a 10mm expansion gap all the way round to allow the timber to expand.
A lot of engineered flooring can be laid dry, just clips together, but you can also glue it with a pva glue, but if you ever want to lift it, then it's difficult without damage.

I would remove all the skirting, looks neater than using a beading attached to the skirting to hide expansion joint.

 

No, a floating floor isn't fixed down ( screwed/nailed,etc) to a sub floor like concrete, it sits on the underlay.

http://en.wikipedia.org/wiki/Floating_floor

Don't see the need to use a adhesive underlay, been using sonic gold underlay here, just need to tape the overlap
with a alumium vapour tape to maintian the dpm seal.

Hunt around might find it cheaper.

https://www.buy-carpet-underlay.co....e_flooring_underlay/novostrat_sonic_gold.html

 

As our older members may remember, Audi-evo a floor laying expert, always recommended Elastilon or SF's version for sticking down floors.

 

Hehe! Half a sleep here,& nowhere near 100% sober, I just spotted my mistake, didn't read his screwfix link correctly, apologies,brilliant stuff Elstilon, screwfix version http://www.screwfix.com/p/self-adhesive-real-wood-underlay/74549