Insulation Slabs

ROCKWOOL insulation slabs can be installed inside walls, outside walls, under floors, above ceilings and in roof spaces – helping to protect buildings against excessive noise, heat loss and the spread of fire.

You’ll find an array of effective ROCKWOOL slabs in our range.

Each offers different sizes, thicknesses and densities, providing an effective solution for any residential or commercial property – from flats and offices to hospitals, shopping centres and schools.

Find inspiration, guides and reports

Where and how can our products be used?

We offer a wide range of robust, adaptable products suitable for an array of applications.

They’re ideal for many different functions when installed in a building. Our range includes cavity wall insulation slabs, loft insulation slabs and flooring solutions to name but a few, with external façade and roof applications also a key part of our offering.

Because they’re rigid and semi-rigid, stone wool insulation slabs can be slotted into spaces like cavity and partition walls with ease, whether these have a brick, concrete, timber frame or other base structure. This also ensures they are easy to lay in-between floors as sound insulation slabs too.

Stone wool is water repellent while simultaneously allowing water vapour to pass through. This makes our slabs a great addition to ceiling and basements, where moisture and damp could otherwise pose problems.

Cavity wall

Slotted into cavity wall spaces to block cold air passing through.

Learn more

Roof insulation

Properly installed, slabs can improve thermal regulation and reduce the impact of external noise.

Learn more

Acoustic insulation

Nuisance noise is reduced from floors and walls in connecting flats and homes.

Learn more

Loft insulation

Slabs can reduce heat loss in attics and lofts – a prime source of this.

Learn more

Fire protection

Insulation slabs work to reduce the spread of flames and are non-combustible.

Learn more

External wall

Excess draughts are blocked but homes still ventilated through external walls.

Learn more

Floors

Sounds are blocked and heat loss decreased through floor spaces.

Learn more

Relevant resources

Installation

Our stone wool insulation slabs are designed for easy installation. They’re rigid, easy to transport and don’t usually require any specialist equipment to lay.

Here’s a few tips to remember.

Cutting our slabs is simple, using a sharp, long-bladed knife or insulation saw. Accurately measure out how much you need to cut to avoid leaving gaps.
Don’t squash down any existing insulation. When you install our slabs lay them down gently on top to avoid compressing and impacting insulation.
Not sure how many slabs you’ll need? Visit the product page and head to the Tools, Guides & Downloads section, where you’ll find accurate sizes and measurements¹.

Inspiration and guides for professionals

Get 16 renovation cases

This case study bundle includes:

29 pages of our best 2018-19 projects
Acoustic renovation in both public buildings and private
Bringing new life into old buildings with facade panels
Improving fire safety and wellbeing in high-rises and historical buildings
Reducing noise and flooding with innovative stone wool solutions

Why do we need insulation slabs?

When it comes to regulating temperatures, protecting against fire and blocking out sound, insulation slabs developed by ROCKWOOL solutions can be an important addition to any building.

They work as a multi-purpose solution that can help:

Drive down energy bills – by keeping more heat in during the chilly months, occupants won’t have to turn on the heating as much, keeping those bills down.
Reduce nuisance noise – flats and terraced housing are at greater risk of noise travelling between walls and floors. Slabs are effective at reducing this.
Keep buildings cool and warm – insulation slabs can repel warmth during the summer and contain heat in the winter, keeping temperatures level all-year-round.

Learn about energy efficiency

package, slabs, ewi, facade, product, external wall insulation, ventilated facade, ventirock super

What makes ROCKWOOL solutions different?

Our products are made from highly durable stone wool.

This robust material is effective at helping to regulate internal temperatures. Being water repellent yet still vapour permeable, it is also resistant to rot and mould².

ROCKWOOL insulation is also:

Built for life – each of our stone wool products will last the lifespan of a building and won’t sag over time, offering lifetime protection³.
Fire protecting – our slabs are non-combustible and withstand temperatures of over 1000°C in the event of a fire⁴.
Adaptable – though our insulation slabs are solid and robust, they can be shaped to suit the building they’re being installed in⁵.

Want to learn more about the power of stone? Check out ‘Why Stone Wool?’ page.

Find ROCKWOOL products

Other product types

Insulation

Insulation Rolls

ROCKWOOL stone wool insulation rolls can be laid in attics, floors and walls – protecting against heat loss and noise, while saving energy.

Insulation

Insulation Granulate

Enhance loft, cavity wall and timber frame spaces with ROCKWOOL insulation granulate. Learn how it can improve fire, sound and thermal protection.

Insulation

Thermal Insulation

ROCKWOOL thermal insulation can reduce energy bills, boost indoor comfort and improve living standards.

Insulation

Fire Safe Insulation

Fire safe insulation improves building safety, reduces the spread of fire and boosts energy efficiency.

Insulation

Acoustic Insulation

Acoustic insulation protects building occupants from noise pollution and boosts comfort and privacy.

Sustainability and energy efficiency

In a world where our natural resources are so precious, we’re playing our part.

ROCKWOOL solutions are committed to zero percent waste of any water used in the production process. That means no runoff into local waterways and no excess water waste⁶.

vertical garden a concept of sustainable building, eco building landscape climbing plants

Our products can also be recycled repeatedly – without losing any insulation quality⁷.

Plus, by keeping temperatures regulated in homes following installation, our products are helping to reduce energy consumption in densely populated areas⁸.

8 facts about the circularity of stone wool

Downloads and resources

By Alene Dawson

Energy Efficiency

Climate Change

5 Easy Energy-Saving Steps To Prep Your Home For Climate Change

Climate change can be complicated. Prepping your home for it doesn’t have to be.

Thought Leadership

Energy home improvement

Upgrading insulation creates a better living environment and saves money.

By BroLaws Construction

Renovation

Wellbeing

Insulation - Why is it important?

When building or renovating a house, it is important to think about insulation. That goes for any room in question.

By Vincci Morales

Renovation

Quality of life

So, you want to live like you’re on vacation?

Enjoy a cosy space, along with peace and quiet, from the comfort of your own home!

By Vincci Morales

Health

Wellbeing

Quality of life

Create a healthy home for your child

There are many things to consider when it comes to your child’s health.

FAQs

Are ROCKWOOL slabs good for sound insulation?

How do you check if your home is insulated properly?

A good way to tell if your home is insulated properly is whether the indoor comfort is of a high standard. If your home feels very cold in the winter, and you are having to increase heating and energy costs to deal with this, your property’s current insulation may not be sufficient. The presence of condensation or mould can also be a symptom of poor quality or poorly installed insulation.

Likewise, if you are experiencing severe disruption in your property due to noise coming from neighbouring properties or outside, you may require better quality acoustic insulation.

What is the best cavity wall insulation?