Knauf Dritherm Cavity Slab 32 455mm x 1200mm x 150mm
SKU: 76551607782

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

Sale price$35.65 Regular price$39.61
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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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Irvin T.
Battle Creek, US
★★★★★ 3
Color is awesome but material isn’t.
Size: 34W x 32L, Color: Blue, Size: 34W x 32L, Color: Blue
The color is pretty much as advertised. I wear a 33 so I order up a size and they were both too long and too big. Instead of returning them I washed them and put them in the dryer. The length after washing turned out perfect but the waist is still a little too big. It should also be noted that the quality of the material isn’t the best. After washing them this is how the pockets will look. You have to iron them each time to get them flat again. I would buy again because of the variety of colors but only at a cheaper price.
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Reviewed in the United States on September 15, 2025
M
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Mike
Louisville, US
★★★★★ 5
Runs small
Size: 36, Color: Khaki
The jeans are a nice color, and length… they run SMALL… I wear a 33-34 and bought a 36. They were skin tight but breathable material… I sent them back to order a 38
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Reviewed in the United States on May 5, 2026
T
Verified Purchase
Tenacious
Birmingham, US
★★★★★ 5
I’m happy with the jeans
Size: 40, Color: Pink
I am very satisfied with this purchase. A lot of compliments too. They fit well, stretch to the material but the skinny fit look. The quality so far is great.
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Reviewed in the United States on March 26, 2026
E
Verified Purchase
eddie r.
Louisville, US
★★★★★ 5
Comfortable Jeans
Size: 38, Color: Khaki
Excellent pair of jeans. Super comfortable
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Reviewed in the United States on April 17, 2026
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Denise
Massapequa, US
★★★★★ 4
MOM-1, PANTS-1...well, I guess we both win
Size: 32, Color: Black
Purchased for my 17 yr old son, about 6'2, 180, medium built. PROS -Black pair is a nice happy medium between faded black and pitch dark. -Roomy around the waist, but not enough for children to sag (no, no, no,) -excellent price for quality of product CONS -might be too comfortable for wearer, resulting in an request for an abnormal amount of additional pairs -consistent compliments for wearer could cause inflated ego or confidence OVERALL I didn't hear any complaints from my son or "can you return this" which is a WIN for me, bc he's usually very picky. it's a whole thing with the length and the thickness, color, all of it. I thought these pants looked really nice, the color was casual enough for friends, and dressy enough for church. I was pleasantly surprised. Not a big fan of belts, but he is not comfortable with sagging (thank goodness), and the fit around the waist provided enough support to stay where they needed to. Pants also did not scrunch up at the bottom, and did not fit like capris. Product title described product to a T (or pants): slim fit stretch comfort casual classic solid- it was all of those in one!
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Reviewed in the United States on December 2, 2025

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