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Celotex  |  SKU: 48379768570203

Celotex Thermaclass Cavity Wall 21 - 1190mm x 450mm - All Thicknesses


£12.89 GBP
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Product Datasheets

Product Datasheet:

Celotex Thermaclass Datasheet

Declaration of Performance:

Celotex Thermaclass DoP

Certificates:

Celotex Thermaclass BBA Certificate

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Things you should know about this product!

  • This product is sold by the board
  • This product is available in the following thicknesses: 90mm, 115mm and 140mm

Description

Celotex Thermaclass Cavity Wall 21 is a user-friendly polyisocyanurate (PIR) insulation board designed for full fill cavity wall applications, boasting outstanding thermal performance with a thermal conductivity of 0.021 W/m.K. Enhanced with a low emissivity foil facing, it offers flexibility in installation, allowing for up to a 10mm residual cavity to accommodate mortar squeeze or for a full fill solution with no residual cavity. Its ease of installation and high thermal efficiency make it an excellent choice for cavity wall insulation projects.

Specifications

  • Length
    1190mm
  • Width
    450mm
  • Material type
    Polyisocyanurate
  • Thermal conductivity
    0.021 W/m.K
  • Fire rating
    Euroclass F
  • Compressive strength
    120 kPa
  • Edge
    Tongue and groove

Key Features

  • Lightweight 1190 x 450mm boards (installed dimensions) 
  • Tongue and groove edge profile 
  • Low emissivity foil facing 
  • BBA approved – certificate 16/5343 (Full Fill Cavity Walls)
  • Easy to Install

 

Where to use

Cavity walls: Celotex Thermaclass is an optimal choice for cavity wall insulation due to its exceptional thermal efficiency, which reduces heat loss and energy consumption, especially in colder climates. Its high-performance PIR insulation not only ensures superior thermal performance but also allows for thinner wall constructions, ideal for space-constrained projects. Additionally, its durability and moisture resistance make it suitable for long-term protection against moisture ingress, preventing structural issues and mould growth. Its lightweight design further facilitates easy handling and installation, potentially reducing labour costs and construction time. Overall, Celotex Thermaclass offers a comprehensive solution for cavity wall insulation, providing both immediate energy savings and long-term durability for building owners and occupants.

Frequently asked questions

  • Can Celotex Thermaclass insulation be used in retrofitting projects? - Yes, Celotex Thermaclass insulation is suitable for retrofitting existing buildings as well as new construction projects. Its specific design for timber frame constructions makes it an effective solution for improving energy efficiency and thermal comfort in both scenarios.
  • What are the thermal properties of Celotex Thermaclass insulation? - Celotex Thermaclass insulation offers excellent thermal insulation properties, with a low thermal conductivity. It helps to create a more comfortable indoor environment by reducing heat transfer through the walls.
  • Is Celotex Thermaclass insulation environmentally friendly? - Celotex Thermaclass insulation contains blowing agents with a high global warming potential (GWP). While it provides excellent thermal performance, its environmental impact is a consideration. Celotex offers guidance on the responsible use and disposal of its products.

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Compare with similar products

Compare below to see what sets these products apart:

A table comparing the facets of 2 products
Facet
Celotex Thermaclass Cavity Wall 21 - 1190mm x 450mm - All Thicknesses
View details
Celotex CW4000 - 1200mm x 450mm - All Thicknesses
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Price
Price
From £12.89 GBP
From £44.33 GBP
Length
Length
1190mm
1200mm
Width
Width
450mm
450mm
Edge
Edge
Tongue and groove
Square
Fire rating
Fire rating
Euroclass F
Euroclass F
Compressive strength
Compressive strength
120 kPa
120 kPa
Thermal conductivity
Thermal conductivity
0.021 W/m.K
0.022 W/mK
Material type
Material type
Polyisocyanurate
Polyisocyanurate
Celotex

Celotex Thermaclass Cavity Wall 21 - 1190mm x 450mm - All Thicknesses

From £12.89 GBP

Length

1190mm

Width

450mm

Edge

Tongue and groove

Fire rating

Euroclass F

Compressive strength

120 kPa

Density

N/A

Thermal conductivity

0.021 W/m.K

Material type

Polyisocyanurate
View product