Roof Insulation

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

Find products Flat roof Pitched roof

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.

Quick Links

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.

Why choose ROCKWOOL solutions?

ROCKWOOL flat roof insulation is designed to enhance modern living, using the natural power of stone wool to provide robust energy efficiency and protection. Made from volcanic rock and effective for the lifetime of a building², ROCKWOOL products give you the ultimate peace of mind.

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

Effective insulation engineered to last the lifetime of a building³
Fire protection from stone wool which can withstand temperatures in excess of 1000°C⁴
Added warmth and comfort that’s simple and quick to install
Acoustic solutions that absorb the sounds of urban life and reduce noise

Benefits of our stone wool insulation include⁴:

Thermal properties

Complies with AS/NZS 4859.1 and meets the requirements of NCC through adherence to NCC 2022 Volume 1 Section J4D3 (1), NCC 2019 Volume 1 Section J1.2(a), NCC 2019 Volume 2 Section 3.12.1.1(a) and state-prescribed variations

Fire Hazard Properties

Adheres to NCC 2019 Volume 1 Specification C1.10 Clause 7 and NCC 2022 Specification 7 Clause S7C7 for insulation materials. When tested to AS1530.3, these products conforms to the "Spread of Flame" and "Smoke Developed"
requirements outlined in NCC 2022 Specification 7 Clause S7C7 and NCC 2019 Volume 1 Specification C1.10 Clause 7.

Non-Combustibility

Complies with the non-combustibility standards of NCC 2022 Volume 1 C2D2 and NCC 2019 Volume 1 C1.9(a) or satisfies the testing criteria outlined in AS 1530.1.

Health & Safety

ROCKWOOL stone wool products are manufactured from FBS-1 stone wool. FBS-1 stone wool is safe to use and the fibre component of these products is listed by Safe Work Australia as Man-made Vitreous Fibre (stone wool) of low bio
persistence as specified under Note Q in the Australian Hazardous Substances Information System and in the Australian Approved Criteria.

Sustainability

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.

Flat roofs offer a cost-effective, space-efficient solution for modern buildings, providing usable rooftop space for solar panels, HVAC systems or green roofs, while enabling streamlined construction and easy maintenance access.

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.

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.

rockwool forum, education, seminar, program, roof, pitched roof, pitched roof insulation, meisterdach, masterrock, installation, das sichere schrägdach, germany

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