Dual Density Rockwool insulation in London is commonly used for external wall applications. Hardrock® Multi-Fix Dual Density insulation is made using environmentally responsible rockwool, a mineral fibre insulation comprised of basalt (a type of volcanic rock) and recycled slag (a byproduct of steel production). The outer side of the slab is capable of directly accepting renders, while the inner face is malleable and able to adapt to the rough surfaces it is likely to encounter inside the wall itself.
The Unique Benefits of Rockwool Insulation
Rockwool is a unique type of insulation with a wide range of notable features and benefits including:
- The fact that it is made from sustainable materials.
- Rockwool exhibits outstanding fire resistance and is non-combustible.
- It is extremely water repellent.
- It also acts as a high-quality acoustic insulation.
- Rockwool has a higher R-value than some other types of insulation, including fibreglass
- It does an outstanding job trapping heat.
- It is able to retain heat while remaining highly breathable, which prevents mould.
- Rockwool insulation slabs are very easy to install, with no staples or nails necessary.
- It does not degrade like fibreglass will.
Rockwool Insulation: Applications
Rockwood External Wall Dual Density Slab thermal insulation can be installed virtually any place you would normally install fibreglass batts, which includes cavity walls, ceilings, crawlspaces and attics. Because of its outstanding thermal and acoustic capabilities, it is often used as an external wall insulation, particularly in those walls on the cold, northern side of a structure. Because of its acoustic and fire properties it also often finds its way into internal walls. And it is not uncommon for it to be used in ceilings to create a fire break between the floors of a house.
Easy to Work With
Rockwool insulation is easy to manipulate, shape and install. It is semi-rigid yet can be cut effectively with a serrated knife and given a very snug, custom-like fit. The fact that it is highly water repellent means that should water intrude into the wall or floor cavity it will roll off without soaking into and compromising the fibres. In addition, rockwool insulation will not compact over time like fibreglass. Instead, it will maintain its snug fit and retain the outstanding thermal and acoustic capabilities we mentioned earlier.
Rockwood External Wall Dual Density Slab thermal insulation is slightly more expensive than fibreglass and that can be a deciding factor for some budget-conscious homeowners. However, any additional installation cost we’ll likely be recouped within just a couple of years via lower energy bills. Stop by one of the Licata showrooms and distribution depots in London today to learn more.
Description
Rockwool – HARDROCK® Multi-Fix (DD)
External Wall Dual Density Slab is a stone wool insulation specifically developed for use in external wall insulation systems.
Made using a ROCKWOOL-patented ‘dual density’ manufacturing process, the top layer of each slab has a distinctly higher density than the remainder of the product.
This provides a robust outer surface for applying render and accepting fixings, while the resilient underside can accommodate unevenness in the substrate.
To aid installation the top layer is branded with ‘THIS SIDE UP’, allowing for quick and easy identification of the outer surface.
Versatile Rockwool Insulation
While often used in external walls Rockwool slab insulation can be installed just about anywhere you might otherwise install fibreglass batts. That includes ceilings, lofts, cavity walls and elsewhere.
Because it is denser than fibreglass, Rockwool insulation exhibits better fire resistance and is capable of withstanding high temperatures for extended periods of time. That density also gives Rockwool its outstanding acoustic insulation properties while its mineral composition enables it to repel water.
Hardrock® Multi-Fix Dual Density insulation is semi-rigid so it can be easily fashioned to effectively dovetail with virtually every type of space. Should moisture intrude into the space the Rockwool will not absorb it, but rather repel it and allow it to evaporate.
Price vs Value
Rockwool Dual Density Slab insulation is slightly more expensive than fibreglass batts. It’s true. But its higher R-value, moisture resistance, and ability to retain its shape over the years means additional savings that should more than offset the higher initial expenditure. In other words, it’s a better long term value than fibreglass.
Trust Licata
Licata has more than 50 years’ experience providing leading-edge insulation and render solutions for the UK market. To learn more about Rockwool insulation for London buildings visit one of our 3 London showrooms today.
Ideal for Domestic, Commercial, and Industrial Applications
Rockwool stone wool insulation is widely used across a range of building types, from residential homes to large commercial and industrial projects. Whether it’s an office building, a hotel like the Crowne Plaza Hotel Heathrow, or a maternity unit hospital healthcare facility, Rockwool provides a high-performance solution based on modern construction needs.
Why Rockwool is the Preferred Choice for Various Sectors:
| Sector | Key Benefits |
|---|---|
| Domestic | Enhances energy efficiency, reduces noise, and improves fire safety in homes. |
| Commercial | Provides reliable thermal insulation, fire resistance, and noise control for offices, hotels, and retail spaces. |
| Industrial | Withstands extreme temperatures, ensuring protection in warehouses and manufacturing plants. |
| Healthcare & Education | Used in projects like the National Autistic Society School and Bradford Maternity Unit Hospital, where safety and comfort are essential. |
With Rockwool Rainscreen Duo Slab and Duo Slab Rockpanel Cladding, we supply solutions that not only improve building performance but also meet the strict requirements of specialist and critical care centres, including hospital healthcare rainscreen duo systems.
Superior Soundproofing for a Quieter Environment
Noise pollution is a growing concern in modern construction, particularly in busy urban areas like Farringdon Train Station and Oxford Road Student Accommodation. Rockwool insulation is designed to absorb and block sound, creating quieter living and working spaces.
How Rockwool Improves Acoustic Performance:
- Dense stone wool composition traps sound waves, reducing airborne noise.
- Ideal for walls, floors, and ceilings in homes, hotels, and music studios.
- Used in performance venues, such as the Royal Academy of Music, to enhance sound clarity.
- Minimises noise transmission between rooms in hospitals, offices, and residential buildings.
Whether you’re designing a music building leisure hardrock space or improving sound insulation for a hotel Heathrow Airport Terminal, our Rockwool solutions ensure superior acoustic performance.
Built to Withstand Moisture and Mould
One of Rockwool’s standout qualities is its natural resistance to moisture, making it ideal for damp-prone areas like Rosebury Road Garage Renovation and Wilmcote House Project Completed. Unlike other materials, Rockwool does not absorb water, preventing the growth of mould and mildew.
Benefits of Water-Resistant Stone Wool Insulation:
- Repels moisture, ensuring long-term durability.
- Maintains thermal and acoustic performance, even in wet conditions.
- Prevents structural damage by stopping water penetration.
- Ideal for façade systems, including Project Rainscreen Duo Slab installations.
For buildings like Plaza Hotel Heathrow Airport, where climate control is essential, our Rockwool insulation ensures a dry, comfortable environment all year round.
Easy Installation with Long-Lasting Performance
Rockwool insulation is not only highly efficient but also easy to install, reducing labour time and costs. Whether used in specialist and critical care settings like unit hospital healthcare rainscreen projects or large-scale renovations, our Rockwool slabs are designed for effortless fitting.
Why Rockwool is a Preferred Choice for Installers:
- Semi-rigid slabs that fit snugly into walls and cavities.
- Lightweight yet durable, making handling simple.
- No need for adhesives or staples—just cut and fit.
- Maintains shape over time, unlike traditional fibreglass.
This ease of installation makes Rockwool a popular choice for both residential and commercial projects, including doctor mix photoshoot YouTube influencer marketing studios and marketing music studio closer setups.
Energy Efficiency That Lowers Heating Costs
Rockwool insulation significantly reduces energy consumption by trapping heat in winter and keeping interiors cool in summer. This results in lower heating and cooling costs, making it an excellent investment for both homeowners and businesses.
Rockwool’s Thermal Benefits:
- Higher R-value than traditional insulation, ensuring superior thermal performance.
- Reduces energy loss, helping properties achieve their intended thermal performance with stone wool.
- Ideal for student housing, like Oxford Road Student Accommodation, where efficiency is key.
- Approved for façade systems, including façade switched to RW projects.
By installing thermally efficient stone wool insulation, businesses like the Heathrow Crowne Plaza Hotel can improve their sustainability while cutting long-term energy costs.
Why Choose Licata for Rockwool Insulation?
At Licata, we supply premium Rockwool stone wool insulation solutions customised to various applications, from leisure hardrock multi fix projects to hospital healthcare rainscreen duo slab systems. With over 50 years of experience, we support our clients with expert advice, high-quality materials, and outstanding customer service.
Whether you need Hardrock Multi-Fix for a quad project case study or rainscreen duo slab and rockpanel installed for a new development, we have the right solution.
Visit one of our London showrooms or contact us today to find the best Rockwool insulation for your project.
Additional Info
| Thickness | 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 180mm, 200mm, 210mm, 220mm, 250mm |
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