Knauf insulation is a type of rock wool insulation that takes the form of rigid boards or slabs and is intended for external wall applications. The magic of Knauf Dual Density insulation slabs is their unique ability to accept renders directly onto the high-density side while at the same time accommodating imperfections in the wall on the low-density side.
Knauf EWI Slab range offers all the benefits listed below.
BBA Certified
Excellent thermal performance.
Manufactured in the UK
Non-combustible A1 Euroclass Reaction to Fire classification
Manufactured in the UK
Non-combustible A1 Euroclass Reaction to Fire classification
Excellent sound absorption characteristics provide high levels of sound reduction
Suitable for use on all buildings including those above 18m in height providing compliance with fire related building regulations.
Contributes to building regulation compliance without reliance on separate testing or desktop studies.
Provides a unique combination of thermal, fire and acoustic performance.
Environmentally friendly, made from bountiful, natural resources.
Very easy to shape and install.
Highly water-resistant, will not be deformed by contact with water.
A high degree of breathability that prevents condensation, mould and mildew.
Produced in an energy-efficient environmentally friendly way.
Rock mineral wool contains no ozone-depleting gases.
The fact that it is highly breathable also means it won’t lock in moisture that might undermine structural integrity. Using Knauf Insulation on London properties enables builders, renovation contractors and home and business owners to enjoy all these benefits and more.
All That and Eco-Friendly to Boot
This type of glass mineral wool external wall insulation is extremely versatile, exemplified by the fact that it also provides impressive acoustic insulation, so you can lock in the heat while locking out street noise. It’s also one of the more environmentally friendly types of insulation.
Knauf insulation is produced from basalt – a type of volcanic rock that is abundant in nature – and recycled slag which is a by-product of steel production. But that is just the tip of the iceberg when it comes to the company’s environmentally friendly stance. Their overarching goals embody a deep commitment to conducting business in a more enlightened way, including:
Respect for Your Comfort and for the World Our Children Will Inherit
Knauf insulation products rely on eco-friendly insulation materials, it’s true. But the company’s commitment to the world we all share goes beyond their dedication to creating environmentally friendly products and extends to ensuring they use an environmentally friendly manufacturing process that is fed by sustainable supply chain operations.
Knauf goes to great lengths to ensure their manufacturing equipment is energy efficient, their production facilities are continually moving toward a carbon-neutral stance, and that they invest copious resources into continual research and development of ever-better manufacturing processes. The following sustainability considerations are at the heart of everything the company does:
- The conservation of natural resources.
- Reducing the impact of their process on the environment.
- Delivering their insulation solutions in the most efficient manner possible.
- Creating insulation materials that enable healthy comfortable indoor environments.
- Continually reviewing and refining their processes.
Description
Knuaf Earthwool Rainscreen Slab
Earthwool RainScreen Slabs are non-combustible Rock Mineral Wool slabs, manufactured using our revolutionary ECOSE® Technology and a water repellent additive, and are designed for use in rainscreen façade systems both below and above 18m in height.
Role of Knauf Insulation Products in Wall Systems
Knauf insulation products play an important part in wall systems where strong thermal performance and dependable fire safety standards are required. As rock mineral wool insulation, they support stable thermal conductivity and reliable insulating properties across a range of construction applications. These products work well with external wall systems that need consistency and long-term performance.
Their design helps strengthen the structure by offering proven acoustic performance and sound absorption when installed with care. This makes them suitable for both residential buildings and commercial spaces, providing a steady solution for walls that need controlled energy use and indoor comfort.
Knauf insulation products also align well with our wider insulation solutions, supporting energy efficient upgrades and improving comfort in occupied buildings. By working with a UK manufacturer recognised for quality and dependable production standards, we expand the range of insulation options available to our customers.
Key Features of Mineral Wool Insulation for Building Envelops
Mineral wool insulation offers clear advantages for façades, with features that support safe, energy efficient and long-lasting buildings. These qualities guide the choice of insulation in many projects and suit a broad range of building types.
Key features include:
- Fire resistance: Rock mineral wool insulation is non-combustible and supports fire safety requirements in external wall applications.
- Thermal performance: Its thermal conductivity helps reduce heat loss, creating steady indoor comfort while supporting energy efficiency.
- Acoustic performance: Strong sound absorption helps limit noise transfer, improving comfort in homes, offices and mixed-use spaces.
- Moisture management: The fibres support breathability and help limit condensation, which protects walls over time.
- Material stability: Knauf insulation products maintain shape when installed, helping avoid gaps that impact performance.
- Ease of installation: The slabs are simple to cut and position, supporting smooth progress on site for contractors.
These features make mineral wool insulation a dependable part of many wall systems, offering consistent value in both new construction and refurbishment work.
Knauf Insulation Technology and Sustainability Focus
Knauf insulation uses ECOSE Technology, a binder developed without added formaldehyde. This contributes to low levels of dust and supports clean indoor air values during installation and use. The technology is designed to improve handling while maintaining the strength expected from rock mineral wool and glass-based materials.
ECOSE Technology also supports sustainability aims within the construction industry. It uses rapidly renewable elements and helps reduce embodied energy in the insulation products. This enables customers to choose insulation solutions that align with long-term environmental goals and modern building expectations.
Knauf insulation offers a range of products that support responsible construction, comfort and safety. The focus on material improvement, energy use and manufacturing progress reflects a commitment to creating insulation that works well for life in real buildings and supports a better world through considered design.
Additional Info
| Thickness | 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 180mm, 200mm, 210mm, 220mm, 250mm, 260mm, 270mm |
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