Greater thermal performance, written in stone

Discover the newest additions to the ROCKWOOL Trade Range, powered by NyRock technology

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Trade Range - Thermal Insulation Range

Rock has evolved naturally over millions of years and has been the standard of construction since the stone age. But in a world where building materials need to work harder than ever, we’ve used new production process to take stone wool to the next level.

NyRock® technology delivers a step change in thermal performance for stone wool, while keeping its standout quality: durability.

Our new, extended range gives the most thermally efficient stone wool for cavity, steel and timber frame currently available in the UK and Ireland, with energy efficiency benefits that do not wane or waver, slump or sag over the lifetime of the building.

 

It’s thermal performance, written in stone.

What is NyRock®?

ROCKWOOL insulation is made using diabase rock that’s naturally produced by the earth’s crust. We melt down this rock then spin it on machinery to form a fleece that’s then made into a variety of sizes and densities for insulation.

With NyRock technology – pronounced ‘new’ – we’ve created a more efficient fibre structure that’s denser and traps more air. This extra air helps slow the transfer of heat further for greater thermal performance.

 

Watch the video below to learn more.

The products

Thermal Insulation Cavity Slab 32 and Thermal Frame Slab 32 are the newest additions to the ROCKWOOL® Trade Range, both powered by NyRock® technology.

Thermal Insulation Cavity Slab 32 is for masonry cavities and can be used in both full fill and partial fill applications. With its 0.032 W/mK thermal conductivity value, it’s a great solution to answer the new higher thermal requirements of Approved Document L in England. And thanks to its lower lambda, you can also benefit from thinner walls.†

With Thermal Frame Slab 32, you’ll get a product purposed design for timber and steel frames, that can be used in a variety applications, including with a brick outer and with or without a service void.

 

Benefits:

  • A low 0.032 W/mK lambda rating for greater thermal performance and energy saving capabilities
  • Easy installation – just friction fit, without precise cutting
  • Durability - proven to last without sagging or slumping*
  • Fire resilience with a Euroclass A1 non-combustible reaction to fire classification
  • Acoustic performance

 

For long lasting thermal and acoustic performance, and the highest levels of fire resistance, choose ROCKWOOL. Now available in λ 32.

 

† Thermal Insulation Cavity Slab 32 has a lower lambda rating meaning a reduced thickness of insulation can be used to achieve desired u-value versus typical stone wool cavity products within the same wall build up

* FIW (German test and research institute), Durability Project Mineral Wool, 2016.

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Trade Insulation Range

Thermal Insulation Cavity Slab 32

Manufactured using NyRock technology, ROCKWOOL Cavity Slab 32 is a non-combustible stone wool insulation slab, designed for use as a full or partial fill insulation solution within masonry cavity walls, delivering the most thermally efficient stone wool cavity insulation currently available in the UK and Ireland.

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Trade Insulation Range

Thermal Frame Slab 032

Manufactured using NyRock technology, ROCKWOOL Frame Slab 032 is a non-combustible stone wool insulation slab, designed specifically for use within timber frame constructions, delivering the most thermally efficient stone wool insulation currently available in the UK and Ireland.

What is lambda?

Lambda, represented by the symbol ‘λ’, is a measure of thermal conductivity – how easily heat passes through a specific material. With insulation, you want a material with low thermal conductivity, therefore a lower lambda value is better.

On our packaging, you’ll see the different lambda ratings of our products so if you need better thermal performance, look for the lower lambda.

How to install

Thermal Insulation Cavity Slab 32 and Thermal Frame Slab 32 are both supplied as stone wool insulation slabs with a high density semi rigid composition.

As they are highly pliable, they can be closely friction fitted to frames, without the need for precise cutting. This is helpful because there’s less room for error and also makes it easier to get a snug fit, without gaps through which heat can escape. Our slabs are also designed to knit together which again helps with a seamless finish.  

ROCKWOOL insulation slabs can be cut with an insulation saw or knife with a serrated blade where needed and then pushed into the frame for a tight fit. 

Get step-by-step advice on fitting in our installation guides.

Installation guides

Where to buy?

Thermal Insulation Cavity Slab 32 and Thermal Frame Slab 32, as well as our wider ROCKWOOL Trade Range are available from merchants across the UK and Ireland. Use our stockist finder to find your nearest.

Find your local stockist

What’s next for NyRock? Find out first…

ROCKWOOL Group