SKU: 51809777418

Knauf Dritherm Cavity Wall Slab 34 Super

Sale price$714.48 Regular price$793.87
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Description

Knauf Dritherm Cavity Wall Slab 34 SuperKnauf Dritherm Cavity Wall Slab 34 Super Description DriTherm Cavity Slabs are semi rigid or rigid slabs of non combustible, glass mineral wool with a water repellent additive. They are 455mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs. DriTherm Cavity Slabs have a special additive to make the product water repellent and are produced in three grades: DriTherm Cavity Slab 37 Standard has a thermal

Knauf Dritherm Cavity Wall Slab 34 Super

Description

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

DriTherm Cavity Slabs have a special additive to make the product water repellent and are produced in three grades:

  • DriTherm Cavity Slab 37 Standard has a thermal conductivity ranging from 0.035 to 0.037 W/mK
  • DriTherm Cavity Slab 34 Super has a thermal conductivity of 0.034 W/mK
  • DriTherm Cavity Slab 32 Ultimate has a thermal conductivity of 0.032 W/mK

DriTherm Cavity Slabs are for the thermal insulation of masonry cavity external walls, either partially filling or fully filling 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.

Standards

DriTherm Cavity Slabs are non-combustible inorganic glass wool, defined as mineral wool in BS 3533: 1981 and are manufactured in accordance with BSI Quality Assurance Standard BS EN ISO 9001: 2000.

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.

Vapour Resistance

DriTherm Cavity Slabs offer virtually no vapour resistance, allowing water vapour to pass freely through the slab.

Thermal

DriTherm Cavity Slabs have thermal conductivities ranging from 0.032 to 0.037 W/mK – see Product Data table below.

Fire

DriTherm Cavity Slab is classified as Euroclass A1 to BS EN ISO 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

DriTherm Cavity Slab is certified by British Board of Agrément Certificate 95/3212 which approves its use in buildings up to 12m in height in any exposure zone, and in multi-storey applications up to 25m in height.

DriTherm Cavity Slabs have been used in many buildings over 25m in height, including exposed coastal sites. 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.

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 external cavity walls and to have a thermal conductivity of 0.032 to 0.037 W/mK at normal building temperatures. Masonry includes bricks, blocks and dressed and reconstituted stone. The guarantee is available by application from Knauf Insulation Ltd.

***Please Note Image is showing a pack of 37 but this is a pack of 34***

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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]
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SKU: 51809777418

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Michele
Lake Worth, US
★★★★★ 5
Reliable Heat Tape That Works Perfectly – No Residue and Great Value!
Number of Items: 4
I bought the MEBMIK heat tape for my heat press projects, and it’s been fantastic so far. The tape holds up well under high temperatures without melting or peeling, which is exactly what I needed for heat sublimation and vinyl pressing. What really impressed me is that it leaves no sticky residue on my materials, so I don’t have to worry about ruining my projects or cleaning up afterward. The tape is also easy to tear by hand and sticks firmly during pressing. With 4 rolls included, this pack gives me plenty of tape for all my projects, and the price is great compared to buying smaller amounts elsewhere. If you’re doing heat press work and need reliable, heat-resistant tape, this is a great choice.
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Reviewed in the United States on June 17, 2025
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Mark Jilks
Birmingham, US
★★★★★ 5
Good Quality.
Number of Items: 4
Very good quality tape very strong.
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Reviewed in the United States on June 3, 2026
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Nathan Scott
Waukegan, US
★★★★★ 5
Very good
Number of Items: 4
Works really well for leather patchs on hats. Peals off easy after pressing. Very good heat transfer tape.
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Reviewed in the United States on March 30, 2026
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emily
Lake Worth, US
★★★★★ 5
Best sublimation tape
Number of Items: 4
This is the best sublimation heat tape I have found. I started buying bigger rolls of it as I bought these smaller rolls when I first started. Stick and hold good works well
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Reviewed in the United States on February 4, 2026
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G Money
Houston, US
★★★★★ 5
Reliable Product
Number of Items: 4
Tape works great with no residue or coloring left behind after heating. Just wish there was more to each roll.
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Reviewed in the United States on May 11, 2026

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