SKU: 76551607782

Knauf Dritherm Cavity Slab 32 455mm x 1200mm x 150mm

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Description

Knauf Dritherm Cavity Slab 32 455mm x 1200mm x 150mmDriTherm Cavity Slabs are semi rigid or rigid slabs of non combustible, water repellent, glass mineral wool. They are 455mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs. Thickness Boards Per Pack Pack Coverage 150mm 4 2. 18m2 Performance Thermal DriTherm Cavity Slabs have thermal conductivities ranging from 0. 032 to 0. 037 W mK. Fire DriTherm Cavity Slabs are classified as Euroclass A1 to BS EN 13501

DriTherm Cavity Slabs are semi-rigid or rigid slabs of non-combustible, water repellent, glass mineral wool. They are 455mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs.

Thickness Boards Per Pack Pack Coverage
150mm 4 2.18m2

Performance

Thermal

DriTherm Cavity Slabs have thermal conductivities ranging from 0.032 to 0.037 W/mK.

Fire

DriTherm Cavity Slabs are classified as Euroclass A1 to BS EN 13501-1.

Benefits

    • British Board of Agrément approved for use in all exposure zones
    • Excellent thermal and fire performance
    • Water repellent
    • Slabs ‘knit’ together, thus eliminating air gaps between adjacent slabs



Application

DriTherm Cavity Slabs are for the thermal insulation of masonry cavity external walls and are installed to fully fill the cavity. They are approved for use in buildings up to 12m high in any exposure zone and for use in multi-storey applications up to 25m in height

Environmental

DriTherm Cavity Slabs represent no known threat to the environment and have zero Ozone Depletion Potential and zero Global Warming Potential.

Knauf Insulation mineral wool products with ECOSE Technology benefit from a revolutionary, bio-based, formaldehyde-free binder technology, based on rapidly renewable materials, instead of petro-based chemicals. It reduces embodied energy and delivers superior environmental sustainability.

The technology has been developed for Knauf Insulation’s glass and rock mineral wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance. Insulation products made with ECOSE Technology contain no dye or artificial colours – the colour is completely natural.

Additional

Standards

DriTherm Cavity Slabs are manufactured in accordance with BS EN 13162, EN 16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as certified by Bureau Veritas.

Durability

DriTherm Cavity Slabs are odourless, rot proof, non-hygroscopic, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Moisture resistance

Tests by the British Board of Agrément confirm that DriTherm Cavity Slabs will not transmit water to the inner leaf. Nor will they transmit moisture by capillary action across the cavity or from below damp proof course level.

Vapour resistivity

DriTherm Cavity Slabs offer negligible resistance to the passage of water vapour and have a water vapour resistivity of 5.00MNs/g.m.

Guarantee

DriTherm Cavity Slabs are guaranteed* for 50 years to resist the transmission of liquid water from the outer masonry leaf to the inner masonry leaf in new cavity walls and to have a thermal conductivity of 0.032 to 0.037 W/mK at normal building temperatures

*Available by application to Knauf Insulation Ltd

Certification

DriTherm Cavity Slabs are certified by British Board of Agrément Certificate 95/3212. Approval can be sought from Knauf Insulation Ltd and the British Board of Agrément for DriTherm Cavity Slab’s use in buildings over 25m high.

Handling and storage

DriTherm Cavity Slabs are easy to handle and install, being lightweight and easily cut to size, where necessary. They are supplied in polythene packs which are designed for short term protection only. For longer term protection on site, the product should either be stored indoors, or under cover and off the ground. DriTherm Cavity Slabs should not be left permanently exposed to the elements.

    • Thermal conductivity (W/mK): 0.032
    • Thermal resistance (m2K/W): 2.30
    • Length (mm): 1200
    • Width (mm): 455
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76551607782

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Verified Purchase
Kathleen Cox
Lowell, US
★★★★★ 5
High quality in every way!
Color: Blush, Size: Full/Queen
Very soft and beautiful! Nothing skimpy about this one! Very pleased.
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Reviewed in the United States on May 14, 2026
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Tara Miller
Bozeman, US
★★★★★ 5
Light Weight but Not Hot
Color: Dark Grey, Size: King
Ok... I absolutely love this comforter. In fact, I use it on three different beds. The colors are perfect. The material is soft. It's extremely light weight, but it keeps you warm in the winter and does not overheat you in the summer. I have this in King and Queen, and the sizing has been good for both. I have thrown it in my washing machine multiple times, and it holds up well. Great quality, low price.
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Reviewed in the United States on December 3, 2025
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Verified Purchase
TheMrs
Chelsea, US
★★★★★ 3
Navy is pretty, but doesn’t feel like a great quality set.
Color: Navy Blue, Size: King
I purchased the Navy. The color is great and the pleated pattern is a nice touch. My daughter has the white and it’s very soft. The navy is not, though. So that was disappointing. It’s also not breathable. It’s not thick, but just not breathable. I actually get pretty warm at night with this one when I don’t normally with any other blankets. It also seems on the small side. We have a king and always buy king, this just feels a little smaller. Doesn’t feel high quality. I would not buy again.
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Reviewed in the United States on October 11, 2025
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Verified Purchase
Mary
Phoenix, US
★★★★★ 5
Very Elegant!!
Color: Bright White, Size: Full/Queen
Beautiful comforter set! its super fluffy light weight while still cozy, gives a clean expensive look. It arrives wrinkled up from being packaged, i never steamed mine but you could do that if you want a crisp look. I love the quality and looks more expensive then it was, highly recommend!
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Reviewed in the United States on May 20, 2026
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Tbay
Lake Worth, US
★★★★★ 5
Excellent buy!
Color: Blush, Size: Twin/Twin XL
I LOVE this set! It is perfect all year long! I fold it down in the summer to just cover my feet. In the Fall it’s perfect weight alone and in the colder months I use a blanket underneath! Everyone says it’s Beautiful! The color stays true wash after wash! It retains its shape well also! The pillow case is exactly like the cover! It also retains color & shape! It’s soft and you can just curl up in it! The quality is just as good as some other very expensive brands! This is great value for the money!
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Reviewed in the United States on September 1, 2025

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