Knauf

(45 products)

Knauf insulation is made from high-quality mineral wool, offering exceptional soundproofing, energy-efficiency and fire-resistant properties for commercial and residential buildings.

Suitable for a variety of applications including floors, walls, ceilings and roofs; explore the full Knauf insulation roll & slab range below.

National Insulation Supplies offers express delivery so can receive your insulation the same day or the next day (subject to confirmation). If you do not want express delivery, please expect a 7-10 day lead time direct to anywhere in the country. For any enquiries or questions, please call 020 3004 5451.

Ensure Exception Thermal Performance with Knauf Insulation

Knauf is one of the most trusted insulation suppliers in the UK, offering a cost-effective and energy-efficient solution for anyone looking to improve their building’s thermal performance.

All Knauf insulation products are non-combustible and hold the highest reaction to fire rating (Euroclass A1), ensuring fire safety in any home.

Knauf Ceiling Insulation

Knauf Loft Roll 44 Combi Cut: This is used for insulating cold-pitched roofs at ceiling level. It’s supplied cut to size and is partially perforated for flexible joist use, making it incredibly easy to install.
Rocksilk Soffit Linerboard (Standard): This is a rock mineral wool slab used to insulate non-exposed structural soffits in underground car park applications. They’re highly sound absorbing and can be installed without requiring access to the above floor.
Rocksilk Soffit Linerboard Extra: This is similar to the standard version but features an impact-resistant cementitious facing board required in semi-exposed areas like open-sided car parks.

Knauf Roof Insulation

Knauf Rafter Roll: This is a solution to all-year-round heat loss as it’s designed for use in warm roofs for insulating the rafters. It’s highly flexible, can be cut down to your required size, and has high sound absorption to reduce unwanted external noise.
Factoryclad Roll: Used for insulating built-up metal roofs and walls. This is available in long lengths for easy installation, is incredibly durable and controls internal sound reverberation very well.

Knauf Floor Insulation

Knauf Insulation Acoustic Roll: Designed for use in internal wall and floor applications. It’s incredibly easy to install as they arrive ready-cut and fit between studs close to joints to maximise acoustic performance.
Rocksilk® Acoustic Floor Slab: Substantially reduces inter-storey sound transfer in residential and commercial buildings. These meet the acoustic requirements of separating floors.

Knauf Wall Insulation

Knauf Cavity Slabs: These are designed for insulating external full-fill cavity walls and handle even the most severe weather conditions. They’re easy to install, fitting effortlessly between wall ties. Knauf Dritherm Slabs 32 & 37 are similar, however, 32 has a greater thermal performance of 0.032 W/mK compared to 0.037 W/mK.
Knauf Masonry Party Slabs: These are used in masonry separating party walls, fully filling them to prevent party wall thermal bypass, contributing towards a zero effective U-value.

Multi-Use Knauf Insulation

Frametherm: Used in timber frame applications between stud work, preventing air movement and infiltration to reduce heat loss.
Omnifit: This is a glass mineral wool roll used for timber and steel frame applications including floors, roofs, walls and ceilings.
Rocksilk Rainscreen Slab: Used as sheathing insulation in rain-screen façade systems on any building no matter the height. It’s made with a water-repellent additive to resist moisture ingress.
Rocksilk Building Slabs (RS45, RS60, RS100 and RS140): Highly versatile insulation slabs providing thermal, fire and acoustic protection in floor, wall, ceiling, light steel and timber frame applications.

Bulk Buy Knauf Insulation & Save Money Today

Do you need to order a large quantity of Knauf insulation? At National Insulation Supplies, we offer discounted rates across our product range when ordering in bulk. To find out more, get in touch with us today at 020 3004 5451.

We also offer free delivery on orders above £500, have an excellent trust pilot rating and secure online payment, so you can buy what you need full of confidence.

Frequently Asked Questions

Is Knauf insulation easy to install?

Knauf insulation is made to be lightweight and flexible for easy transportation, storage and installation. With all insulation, we recommend wearing PPE including a dust mask and long sleeves to ensure your skin is protected from irritation.

Does Knauf insulation protect against fire?

Knauf insulation is made from non-combustible mineral wool and withstands high temperatures. The product range also achieves A1 Euroclass Reaction to Fire Classification, the highest possible rating, ensuring minimal contribution to a fire.

Is Knauf an eco-friendly brand?

Knauf mineral wool insulation is made using ECOSE® Technology, a unique bio-based binder which is less energy-intensive to manufacture compared to traditional binders. It’s made from rapidly renewable natural raw materials which contain no added formaldehyde or phenol, ensuring minimal dust for easy handling.

Can I order Knauf insulation in bulk?

At National Insulation Supplies, we have a handful of special bulk-buy deals across our Knauf insulation range, letting you save money on a large project. To find out more, fill out our bulk order form, and we'll take care of the rest. You can also give us a call at 020 3004 5451, and our friendly sales team will be happy to assist you.

Knauf range

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