Soundproofing Topics
Building Supplies
Product Information
Help and Information
Building Regulations
Useful Information
content seperate

Crown Acoustic Products: Crown Dritherm Cavity Slab

NoiseStop Systems UK Site: Soundproofing for Domestic, Commercial and Industrial. Call Today on 08451 306 269.
content seperate
This Months Deal!
FREE Delivery and Special Offers Now on Most Purchases (Excluding Vat).*
Extra Discount on Selected Products & Materials | Trade Discount | Call and ask for more Detail.*
Polyfoam Floor Foam - FREE PCT (Pre Completion Test) with every order over 100 L.M
The BEST things in life are FREE!
FREE Quotation Service
FREE Valuation Service
FREE Advice
Ask Sound Proof Dr.

What can I help you with?

  • Do you need a brochure?
  • Is it a quote you're after?
  • Can I help you with a technical question?
  • Do you need a sample?
content seperate

Crown Acoustic Materials: Crown Dritherm Cavity Slab

Below you will find information on specific products within our range. To ensure that you purchase the correct products to suit your requirements we recommend that, you contact one of our qualified customer focused advisors, who will be only too pleased to help. Please call 08451 306 269 or email us for a quote or advice.
Crown Dritherm Cavity Slab Buy Online or Call: 08451 306 269
Short Description
Application
Crown 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
Crown 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.
Certification
Crown DriTherm Cavity Slab is certified by British Board of Agrément Certificate 95/3212 which approves its use in buildings up to 12 m in height in any exposure zone, and in multi-story applications up to 25m in height.

Crown DriTherm Cavity Slab has 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 Crown DriTherm Cavity Slab’s use in buildings over 25m high.
Guarantee
Crown DriTherm Cavity Slab is 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.
Durability
Crown DriTherm Cavity Slab is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.
Environmental
Crown DriTherm Cavity Slab is free from CFCs, HCFCs and any other material with ozone depletion potential in its manufacture and content and represents no known threat to the environment. Crown DriTherm Cavity Slab has a Global Warming Potential of less than 5.
Vapour Resistance
Crown DriTherm Cavity Slab offers virtually no vapour resistance, allowing water vapour to pass freely through the slab.
Moisture Resistance
Crown DriTherm Cavity Slab contains a water repellent silicone binder to ensure that no liquid water is able to pass through the slab and reach the inner leaf of masonry.

Tests by the British Board of Agrément confirm that Crown DriTherm Cavity Slab will not transmit water to the inner leaf. Nor will it transmit moisture by capillary action across the cavity or from below DPC level.
Handling and Storage
Crown DriTherm Cavity Slabs are easy to handle and install, being lightweight and easily cut to size.

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. Installation instructions are on every pack.

Crown DriTherm Cavity Slabs should not be left permanently exposed to the elements.
Thermal Performance
Crown DriTherm Cavity Slabs have thermal conductivities ranging from 0.032 to 0.037 W/mK – see Product Data table.
Fire Performance
Crown 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
Product Data
Thickness (mm) Thermal conductivity (W/mK) Thermal resistance (m2K/W) Slab Size(mm) Slabs per Pack Area per Pack(m2)
Crown DriTherm Cavity Slab
100(Plus) 0.036 2.75 1200x455 12 6.55
100 0.037 2.70 1200x455 12 6.55
85(Plus) 0.036 2.35 1200x455 14 6.55
85 0.037 2.25 1200x455 14 7.64
75(Plus) 0.036 2.05 1200x455 14 7.64
75 0.037 2.0 1200x455 16 8.74
65 0.036 1.8 1200x455 18 9.83
50 0.035 1.4 1200x455 18 9.83
Crown DriTherm Cavity Slab 34
100 0.034 2.90 1200x455 8 4.37
85 0.034 2.50 1200x455 8 4.37
75 0.034 2.20 1200x455 10 5.46
65 0.034 1.90 1200x455 12 6.55
50 0.034 1.45 1200x455 16 8.74
Crown DriTherm Cavity Slab 32
100 0.032 3.10 1200x455 6 3.28
85 0.032 2.65 1200x455 8 4.37
75 0.032 2.30 1200x455 8 4.37
65 0.032 2.00 1200x455 10 5.46
50 0.032 1.55 1200x455 14 7.64
Product List PDF Brochure Noise Test and Sound Testing Price List Request a Brochure Telephone 0845 306 269 NoiseStop Systems: The Ultimate Noise Reduction Systems