UKFR - ROOFING AND INSULATION SPECIALISTS

Rockwool Hardrock Insulation

Discover our range of Rockwool Hardrock insulation, specifically developed for the flat roof system. Whether you are looking to upgrade your existing insulation or constructing your new build, Rockwool is a trusted brand when it comes to flat roof insulation. At UKFR, you can find a wide range of Rockwool insulation boards including multi-fix, underlay and UB34, all ideal for a variety of flat roof insulation projects. 

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Buy Rockwool Roof Insulation Boards

Crafted from volcanic rock, and spun into a wool-like fleece, rockwool hardrock insulation boards offer exceptional thermal, acoustic and fire-resistant properties.

At UKFR, we offer an extensive selection of Rockwool roof insulation boards, designed to provide superior thermal performance and fire safety. Whether you're working on single-ply, bitumen, or green roof systems, Rockwool offers an insulation solution that suits your project needs.

Rockwool HardRock Multifix DD

Rockwool Hardrock Multifix is a versatile stone wool insulation board suitable for any refurbishment project. It has exceptional acoustic and fire resistance properties for the highest performance possible and can be used on a wide range of flat roofing systems including single-ply, flat roofs, inverted roofs, pitched roofs and cavity walls.

With Hardrock Multifix you can expect:

• The highest fire class rating (Euroclass A2 non-combustibility and tested to the highest LPCB standards)
• Excellent acoustic performance
• Long-term durability
• Thermal conductivity: 0.039 W/mK
• Waterproofing resistance: 5.9 MNs/gm

Please note the grade and fire resistance increases with the thickness range. Further specifications can be found on the datasheets found on the relevant product pages.

These are available in varying thicknesses between 60-185mm and can be bought as individual insulation boards or in pallet sizes ranging from 6 to 20. If you require more than 20, please get in contact with us and we can arrange a bespoke quote.

When installing multi-fix insulation, Rockwool Hardrock Underlay can be used alongside it to improve its thermal performance. 

Rockwool Hardrock UB34

Rockwool Hardrock UB34 is similar to multi-fix, however, it features a 6mm cement fibre board on the surface making it more impact and weather-resistant. It's most often used when you need the most durable solution, such applications include upstands and parapet walls. 

What you can expect:

• Non-combustible Euroclass A2-s1,d0
• Excellent acoustic reduction, absorption and impact performance
• Excellent thermal insulation: 0.034 W/mK
• Long-term durability
• Impact and weather-resistant
• Easy to handle on-site

Please note that whilst it's easy to install, it is heavy and you may require assistance when moving it. Further specifications can be found on the datasheets found on the relevant product pages.

These are available in 56mm thick insulation boards (50mm insulation, 6mm cement fibre board) and can be bought individually or in pallet sizes of 72. If you require a certain amount of boards, please get in contact with us and we can arrange a bespoke quote. 

What Can I Expect From Rockwool Insulation?

As a leading global manufacturer, Rockwool provides stone wool insulation made from volcanic rock, offering a sustainable and effective solution for your roofing needs. Certified with industry standards such as BBA, ISO, and LPS 1181, Rockwool Insulation ensures high-quality performance across all its products.

With Rockwool, you can expect:

• Superior fire resistance: A safe and reliable choice for any project.
• Exceptional acoustic properties: Reducing noise and improving comfort.
• Sustainability: Made from natural, recyclable materials.
• Long-lasting durability: Providing lasting performance even in harsh conditions.

Why Buy from UKFR?

At UKFR Roofing & Insulation, we're a proud supplier of Rockwool Hardrock products, delivering to customers up and down the country. 

We have over 50 years of experience in the construction industry and because of this, we know how important it is to buy from a brand you not only trust but is affordable for your budget. If you need any help with your insulation, please don't hesitate to get in touch with us and we'll be more than happy to help you out. 

Unable to find the right insulation board for your project? Check out the full range of flat roof insulation boards including Bitumen faced insulation boards, foil faced insulation boards & tissue faced insulation boards. We also supply standard PIR boards from Celotex. 

Frequently Asked Questions

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