Which underlay for click engineered boards on chipboard subfloor?

28 Apr 2021
Reaction score
United Kingdom
So I have these click engineered boards that are 2200mm x 180mm, and 14mm thick. I’m laying them on a chipboard subfloor on joists on the 1st floor. The chipboard is sound and mostly flat. The company i bought the boards from recommended 3mm rubber crumb underlay with a silver vapour barrier.

I’m unsure about this first because I’ve read you shouldn't use a vapour barrier on a suspended floor, and second because I’ve read rubber crumb contains heavy metals and I don’t want to deal with a load of toxic dust if I ever take this up again.

What is a suitable underlay for this kind of flooring that won’t be too bouncy , ideally that will help deaden noise transmission a bit too?



  • IMG_6230.png
    1.5 MB · Views: 31
Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links