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Knauf Dritherm Cavity Wall Slab 32 Ultimate

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knauf_dritherm_cavity_wall_slab_32_ultimate
£44.89

Knauf Dritherm Cavity Wall Slab 32 Ultimate. Cavity wall insulation Earthwool. 

Delivery: Estimated at 3 - 5 Working Days more details
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Product Information

Knauf Dritherm Cavity Wall Slab 32 Ultimate 455 x 1200mm board size

Description

Knauf 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.

Knauf 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

Knauf 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

Knauf 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

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

Thermal

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

Fire

Knauf DriTherm Cavity Slab is classified as Euroclass A1 to BS EN ISO 13501-1.

Benefits

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

Certification

Knauf DriTherm Cavity Slab is certified by British Board of Agr©ment 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.

Knauf 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 Agr©ment for DriTherm Cavity Slab’s use in buildings over 25m high.

Guarantee

Knauf 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.

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Delivery Rate Standard
Product Brand Knauf
Delivery Information
Standard delivery
Orders under £210 = £90
Orders £210 - £360 = £60
Free delivery on orders over £360

Delivery charges will depend on the contents of your order and will be calculated at checkout.

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