Roof Insulation

Effective and durable roof insulation increases the energy efficiency of residential and commercial properties, whatever the time of year .

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Why do we need roof insulation?

Installing effective insulation in homes and commercial properties can reduce cooling requirements by up to 70%.¹ As well as the cool air escaping, there’s the chance that hot air can also enter through a roof that isn’t in good shape.

In hot climates, keeping a building cool is essential.

Insulation helps to maintain the building’s correct temperature, so you can get creative with the results. Turn a loft area into a living space or an extra bedroom, or turn a flat roof into a welcoming terrace or green roof.

Insulating a flat or pitched roof can help:

Prevent heat transfer
Increase the energy efficiency of a property
Save money on cooling bills
Reduce the carbon footprint of a property
Improve summer comfort
Serviceability
Damping of rain noise

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Relevant resources

Roof Insulation

Effective and durable roof insulation increases the energy efficiency of residential and commercial properties, throughout the year.

As well as preventing significant thermal transmission from residential and commercial properties in warm climates, It is also designed to maintain indoor temperatures during hot weather. Increasing the energy efficiency of a building can also mean reducing bills and operational costs.

We supply a variety of insulation products for flat or pitched roof applications. Form Steel roof to concrete roof be it pitched or flat roof, ROCKWOOL products are made from premium stone wool to keep your properties safe and the indoor environment comfortable.

On top of the good thermal performance, the fire-resistant and acoustic properties of ROCKWOOL products also allow for more freedom in your designs.

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Tools to ease your work

Tools

To help you in the best possible way, we offer a range of tools for both professionals and homeowners.

Technical Resources

Product Documentation

Access the most up to date technical product data sheets, technical guides, product specifications, brochures, specifications and product brochures.

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For product pricing and local dealer information, contact our local sales rep.

FAQs

Frequently Asked Questions

Have a small question about our stone wool products? Browse through our FAQs to find a quick answer.

Flat Roof Insulation Products

Flat Roofing Solutions

HardRock® Multi-Fix (DD)

HardRock® Multi-Fix (DD) is a BBA-approved insulation board, that in addition to thermal comfort, provides independently-tested acoustic and fire resistance properties.

Flat Roof Solutions

HardRock® Multi-Fix Recovery Board

Maintaining roof surfaces is crucial for the protection of property, both in commercial and domestic settings. Specifically developed for use on flat roof refurbishment projects, HardRock® Multi-Fix Recovery Board is a non-combustible board compatible with all commonly used flat roof membranes, including single-ply, EPDM, bitumen and liquid-applied systems.

Flat Roof Solutions

HardRock® Multi-Fix (DD) Tapered

Non-combustible tapered insulation for flat roofs. HardRock® Multi-Fix (DD) Tapered is a BBA-approved insulation board, fabricated to a fall to provide drainage across a roof.

Installing

Details of how to install our products for flat or pitched roofs can be found on the sub-application pages. To accommodate for local requirements and regulations, specific product information is available on our local product pages.

Key things to note:

Ensure the construction is in good shape before placing insulation materials.
Wait for dry conditions before laying insulation.
Have all necessary PPE to hand

Inspiration and guides for professionals

Why choose ROCKWOOL solutions?

ROCKWOOL products – including roof insulation boards, slabs, and rolls – are specially designed to cope with a variety of conditions. Our experts can be on hand to help facilitate the smooth and speedy installation with local fitters, while the materials used in the build are maintained to the highest safety standards.

Available in a selection of sizes and thicknesses, our innovative stone wool products are both durable and effective for the lifetime of your building.

Our flat roof range maintains its high performance against heat and moisture, while the versatile installation methods of our pitched roof products mean you can protect your project with above, in between, and below rafter insulation to achieve the best results.

Benefits of our stone wool insulation include⁴:

Thermal properties

Specially treated stone wool has optimal insulative properties, this ensures buildings are always maintaining comfortable temperatures for the occupants.

Noise-absorbing

The acoustic properties of stone wool can better contain sound within a building, providing better acoustics for budding rock stars, or keep it outside for high focussed office workers and eager students alike.

Sustainable

Stone wool is both a natural and plentiful source. By choosing to use fewer alternative materials we’re maintaining sustainable practice – vital in the construction industry.

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Case Studies

The project

The remarkable and innovative Zaha Hadid-designed Port House building in Antwerp, Belgium was created as a sustainable workplace for the headquarters of Europe’s second-largest port.

The challenge

Port House required protection against the noise from technical installations on its complex flat roof, as well as effective fire protection to ensure the highest possible safety standards.

The solution

ROCKWOOL stone wool products were installed due to their effective acoustic properties, while ROCKWOOL roof insulation boards used in the building met the highest A1 Fire Class rating.

Our ‘cut to fall’ service also allowed the insulation to be custom-fitted to Port House’s unusual boat-shaped roof – facilitating swift installation and allowing the right angle for draining rainwater from the surface.

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Havenhuis/ Port House - Acoustic Capabilities

The excellent acoustic performance of ROCKWOOL stone wool is an important advantage…the highly detailed cut-to-fall plan [also] helped us a great deal.

Gert Biebauw

project leader at Bureau Bouwtechniek

ROCKWOOL Roof Insulation – applications

Insulation

Pitched Roof Insulation

Discover ROCKWOOL Pitched Roof Insulation for the ultimate in thermal, acoustic and fire performance solutions. Insulate with stone wool for the future.

Insulation

Rafter Insulation

ROCKWOOL rafter insulation uses the power of natural stone to conserve energy and protect against external noise.

ROCKWOOL Consolidation

Insulation

Flat Roof Insulation | ROCKWOOL Asia

Flat roof insulation can reduce energy costs and create an additional roof space. Discover all the benefits of ROCKWOOL flat roof insulation today.

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Our sales package that can boost your business includes:

Guide on how to sell a premium job
Tips & tricks to do an expert installation
Advice on effective communication with customers
Frequently asked questions by other professionals and customers
Boost your skills by watching our installation videos

Sustainability and energy efficiency

Sustainability is at the heart of everything we do. Rock is one of the earth’s most abundant, most sustainable resources, and it’s our belief that the clever use of this rich material can help save others from being depleted before it’s too late.

By installing insulation sourced from innovative stone wool, our products can help reduce the amount of energy that needs to be used to heat buildings – and save money on energy bills too.

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Specialist roofing insulation can also increase the acoustic properties of a larger build where noise pollution could be a problem, such as urban homes, buildings near airports, libraries and schools.

8 facts about the circularity of stone wool