HardRock® Multi-Fix (DD)

Rockwool UK

Price not listed

HardRock Multi-Fix (DD) is a BBA-approved dual-density roofing insulation board suitable for various surfaces, including flat roofs. In addition to thermal comfort, it provides independently tested acoustic and fire resistance properties. This product is part of the RockFall System, please refer to the datasheet for details.

Rockwool UK's own words, read from their page on 2026-08-29.

Buy from Rockwool UKPrice seen 2026-08-29. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as ROCKWOOL LIMITED, number 00972252. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.