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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Flat roof Pitched roof Loft Insulation

As well as preventing significant heat loss from residential and commercial properties in cold climates, it is also designed to keep the cool air in 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. From steel, concrete or warm roofs to rafter line or loft insulation, 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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Why do we need roof insulation?

Installing effective insulation in homes and commercial properties can reduce heating requirements by up to 70%.¹ Those that are not effectively insulated can lose approximately a quarter of heat through the roof. As well as the warm air escaping, there’s the chance that cold air can also enter through a roof that isn’t in good shape.

In hot climates the opposite can occur, where 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 heating bills
Reduce the carbon footprint of a property
Improve summer comfort

Relevant resources

Calculator and savings

Every home and business is different. With various sizes and dimensions of flat or pitched roofs, as well as budgets and bills to consider, there’s no one-size-fits-all solution.

Heating and cooling buildings accounts for 35-60% of total energy demand around the world.² The savings homes or businesses stand to make by reducing energy bills can more than make up for the costs of roof insulation.

In terms of money that can be saved, energy use and reducing the carbon footprint, installing roofing insulation is well worth the investment.

In addition, the building insulation ROCKWOOL sold in 2019 will save 100 times the carbon emitted in its production over the lifetime of its use.³

ROCKWOOL applications incorporate the latest BIM techniques to determine the required thermal performances for a project. This helps to predict the costs of an individual project, whatever the size and scope. We provide a selection of tools to help you calculate thermal performance – and therefore what costs a project potentially incurs.

Learn about energy efficiency

Insulation, construction, roof, attic, loft

Why choose ROCKWOOL solutions?

ROCKWOOL products – including roof insulation boards, slabs, rolls and granulate – 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 cold and moisture, while the versatile installation methods of our pitched roof products means you can protect your project with above, in between and below rafter insulation or with easy-to-fit loft floor solutions, to achieve the best results.

Benefits of our stone wool insulation include⁴:

Thermal properties

Specially treated stone wool has optimal insulative properties. Warm air can be trapped inside the home and cold air can be kept out to maintain comfortable temperatures.

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

Loft Insulation

Installing ROCKWOOL loft insulation can reduce heat and energy loss, preventing problems with noise, rot and mould.

Insulation

Rafter Insulation

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

Insulation

Concrete Deck Insulation

Installing concrete deck insulation can significantly reduce your energy costs. Discover the benefits of ROCKWOOL concrete flat roof insulation today.

Insulation

Metal Roof Insulation

Improve energy efficiency and acoustic performance with ROCKWOOL metal roof insulation. Our solutions are resilient, long-lasting and non-combustible.

Insulation

Steel Deck Insulation

Enhance your building with ROCKWOOL steel deck insulation. Durable and fire-resistant, our insulation is designed to be energy efficient and long-lasting.

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

Are you a professional?

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

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