Professional recommendation on underlay

[stender]

Looking for a professional recommendation on best underlay. Laying laminate on a ground floor concrete front room and dining room and a bit overwhelmed on choice and pricing. The floor looks pretty even so am assuming a 3mm moisture proof is what I need. 5mm looks like it might be a bit thick once the floor is on as well.
Quickstep and timbermate seem to be good quality but not cheap. I've been in b&q and they have a reasonably priced damp proof 3mm one and also 3mm foil backed boards. Does anyone have any experience of those? I've previously used the green boards but feel it's too thick this time as the skirting is only about 70mm and I have to put edging on as well.

These are the b and q
https://www.diy.com/departments/dia...our-barrier-foam-underlay-15m-/1532500_BQ.prd

THis but its 5mm although didnt look it in shop
https://www.diy.com/departments/dia...ring-xps-aquastop-underlay-5m-/1570774_BQ.prd

This one looks ok from elsewhere
https://www.carpet-underlay-shop.co...s/royale-5mm-sonic-gold-underlay-for-laminate

 

[foxhole]

Why do you want a professional opinion when you have already dismissed best option .

 

[stender]

Who’s dismissed the best option?
I’m looking for the best option and where to buy from.

 

[Notch7]

I like this one:

https://www.tradepriced.co.uk/timbertech2_acoustic_gold_laminate_underlay.html

Or a 2mm version:

https://www.tradepriced.co.uk/timbertech2_silver_laminate_underlay.html

 

[stender]

Quick question
Some of the foil underpays have 1 straight foam edge but on the other end it has a foil overlap. How do you join length together? Does the foil bit overlap the straight edge of the next one?

 

[crazydaze]

Timbermate XL Underlay is way better than the product you want to buy, tape the joints with Vapour tape.