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Application

Walls - External Wall Insulation - Partial Fill Masonry Cavity Walls

Description

Celotex CW4000 is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing. Available in thicknesses from 40 mm to 100 mm, it is suitable for use in partial fill cavity wall applications.


Product Features

  • Lightweight 1200 x 450 mm boards
  • Squared edges
  • Low emissivity foil facing
  • BBA approved – certificate 16/5343 (Partial Fill Cavity Walls)


Fire Classification

Euroclass F Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission.


Product Benefits

  • Thermal Performance - Excellent thermal performance with a thermal conductivity of 0.022 W/m.K, reducing the thickness of insulation required to hit the target U-value.
  • High Performance Facer - Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value.
  • Easy to Install - The boards are light and rigid assisting with ease of transportation, handling and fitting. They are sized to fit standard wall tie spacing for ease of installation.
  • BBA Certified - Celotex CW4000 has been assessed by the BBA as fit for use in defined partial fill cavity wall applications if installed, used and maintained as set out in the certificate. Please read the certification at insulation-UK.com/BBA for full details and restrictions.


Key Considerations

When using Celotex CW4000, you need to satisfy yourself that use of the product meets all relevant national Building Regulations and guidance as well as local, national and other applicable standards relevant for your construction or application, including requirements in relation to fire and applicable height restrictions.


Please refer to the following product documents:

  • Product Datasheet
  • BBA Certificate
  • Declaration of Performance
  • Health & Safety Datasheet


Celotex CW4000 should not be used in the external walls of buildings over 11 metres in height. Recent changes to Building Regulations mean that only non-combustible insulation or insulation of limited combustibility should be used in buildings of that height.

General information

Color

Silver

Guidance for specification option:

Face

Cream

Finish

Foil

Material

Polyisocyanurate (PIR)

Shape

Rectangle

Length

450 mm

Width

1200 mm

Uniclass

Pr_25_71_63_66 Polyisocyanurate (PIR) foam boardsPrimary

CAWS

F30/12 Partial fill cavity insulation

F30/155 Partial fill cavity insulation

Specification data - Polyisocyanurate (PIR) foam boards

Standard

To BS EN 13165.

Guidance for specification option:

Declaration of Performance (DoP): UKCA Marked to BS EN 13165.

Third party product certification

BRE Green Guide rating of A, Certificate number ENP413; BBA approved 16/5343; ISO 9001; ISO 14001.

Guidance for specification option:

  • BBA approved for partial fill cavity walls.
  • SGS: Manufactured under Quality Management System. BS EN ISO 9001 - Certificate Number GB91/504. All Celotex products are manufactured under Environmental Management System – ISO 14001:2015.
  • SGS: Manufactured under Environmental Management System ISO 14001 - Certificate Number GB11/83526.

Fire performance

Euroclass F Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission.

Thermal conductivity (maximum)

0.022 W/m.K.

Cross section

Uniform thickness.

Thickness (nominal)

40 mm.

Face size (length x width)

1200 x 450 mm.

Density

Manufacturer's standard.

Guidance for specification option:

Consult manufacturer for details.

Compressive strength at 10% deformation

Manufacturer’s standard.

Guidance for specification option:

Consult manufacturer for details.

Recycled content

Manufacturer's standard.

Guidance for specification option:

Consult manufacturer for details.

Facing

Foil.

Edges

Square.

Thermal resistance (R-value)

1.80 m²K/W.

Handling

Manufacturer's standard.

Guidance for specification option:

Information regarding storage, installation and handling of Celotex products, or health and safety information, can be found on the manufacturer's website.

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