Summary
Polyisocyanurate (PIR) thermal insulation board with a low-emissivity foil facing and a tongue-and-groove edge profile for full fill cavity wall applications.
Polyisocyanurate (PIR) thermal insulation board with a low-emissivity foil facing and a tongue-and-groove edge profile for full fill cavity wall applications.
Polyisocyanurate (PIR) thermal insulation board with a low-emissivity foil facing and a tongue-and-groove edge profile for full fill cavity wall applications.
Application
Suitable for full and partial fill cavity wall applications:
- Walls - external wall insulation - full fill masonry 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 conductivity of 0.021 W/m.K, reducing the thickness of insulation required to hit the target U-value.
- Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value (based on a residual cavity of 10mm).
- Sized to fit standard cavity wall tie spacing. They are light and rigid, assisting with ease of transportation, handling and fitting.
- BBA Certified - Thermaclass Cavity Wall 21 has been assessed by the BBA as fit for use in defined full fill cavity wall applications if installed, used and maintained as set out in the certificate. Please read the certification for full details and restrictions.
Key Considerations
When using SOPRATHERM Thermaclass Cavity Wall 21, 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
- Product brochure
- Health & Safety Datasheet
SOPRATHERM Thermaclass Cavity Wall 21 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.
Suitable for full and partial fill cavity wall applications:
- Walls - external wall insulation - full fill masonry 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 conductivity of 0.021 W/m.K, reducing the thickness of insulation required to hit the target U-value.
- Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value (based on a residual cavity of 10mm).
- Sized to fit standard cavity wall tie spacing. They are light and rigid, assisting with ease of transportation, handling and fitting.
- BBA Certified - Thermaclass Cavity Wall 21 has been assessed by the BBA as fit for use in defined full fill cavity wall applications if installed, used and maintained as set out in the certificate. Please read the certification for full details and restrictions.
Key Considerations
When using SOPRATHERM Thermaclass Cavity Wall 21, 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
- Product brochure
- Health & Safety Datasheet
SOPRATHERM Thermaclass Cavity Wall 21 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.
Suitable for full and partial fill cavity wall applications:
- Walls - external wall insulation - full fill masonry 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 conductivity of 0.021 W/m.K, reducing the thickness of insulation required to hit the target U-value.
- Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value (based on a residual cavity of 10mm).
- Sized to fit standard cavity wall tie spacing. They are light and rigid, assisting with ease of transportation, handling and fitting.
- BBA Certified - Thermaclass Cavity Wall 21 has been assessed by the BBA as fit for use in defined full fill cavity wall applications if installed, used and maintained as set out in the certificate. Please read the certification for full details and restrictions.
Key Considerations
When using SOPRATHERM Thermaclass Cavity Wall 21, 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
- Product brochure
- Health & Safety Datasheet
SOPRATHERM Thermaclass Cavity Wall 21 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.
Description
SOPRATHERM Thermaclass Cavity Wall 21 (formally Celotex) is a rigid thermal insulation board made of PIR foam, featuring a low-emissivity foil facing. It can be installed with up to a 10 mm residual cavity (to support ease of installation and accommodate mortar squeeze) or as a full-fill solution with no residual cavity.
Features and benefits:
- Lightweight 1190 x 450mm boards (installed dimensions).
- Tongue and groove edge profile.
- Low emissivity foil facing.
- BBA certified.
- Good thermal performance.
SOPRATHERM Thermaclass Cavity Wall 21 (formally Celotex) is a rigid thermal insulation board made of PIR foam, featuring a low-emissivity foil facing. It can be installed with up to a 10 mm residual cavity (to support ease of installation and accommodate mortar squeeze) or as a full-fill solution with no residual cavity.
Features and benefits:
- Lightweight 1190 x 450mm boards (installed dimensions).
- Tongue and groove edge profile.
- Low emissivity foil facing.
- BBA certified.
- Good thermal performance.
SOPRATHERM Thermaclass Cavity Wall 21 (formally Celotex) is a rigid thermal insulation board made of PIR foam, featuring a low-emissivity foil facing. It can be installed with up to a 10 mm residual cavity (to support ease of installation and accommodate mortar squeeze) or as a full-fill solution with no residual cavity.
Features and benefits:
- Lightweight 1190 x 450mm boards (installed dimensions).
- Tongue and groove edge profile.
- Low emissivity foil facing.
- BBA certified.
- Good thermal performance.
Product certifications
Color
Silver, Cream
Silver, Cream
Silver, Cream
Finish
Foil
Foil
Foil
Material
Polyisocyanurate (PIR)
Polyisocyanurate (PIR)
Polyisocyanurate (PIR)
Shape
Rectangle
Rectangle
Rectangle
Length
1190 mm
1190 mm
1190 mm
Width
450 mm
450 mm
450 mm
Height
90 mm, 115 mm, 140 mm
90 mm, 115 mm, 140 mm
90 mm, 115 mm, 140 mm
Specification
Classification data
Standard
To BS EN 13165.
To BS EN 13165.
To BS EN 13165.
Third-party certification
BBA approved 24/7312; UKCA Marked; ISO 9001; ISO 14001.
BBA approved 24/7312; UKCA Marked; ISO 9001; ISO 14001.
BBA approved 24/7312; UKCA Marked; ISO 9001; ISO 14001.
Fire performance
To BS EN 13501-1, Class F.
To BS EN 13501-1, Class F.
To BS EN 13501-1, Class F.
Thermal conductivity (maximum)
To BS EN 12667, 0.021 W/mK.
To BS EN 12667, 0.021 W/mK.
To BS EN 12667, 0.021 W/mK.
Compressive strength at 10% deformation
120 kPa.
120 kPa.
120 kPa.
Cross section
Uniform thickness.
Uniform thickness.
Uniform thickness.
Thickness (nominal)
90 mm.
115 mm.
140 mm.
Face size (length x width)
1190 x 450 mm.
1190 x 450 mm.
1190 x 450 mm.
Facing
Foil.
Foil.
Foil.
Edges
Tongue and groove.
Tongue and groove.
Tongue and groove.
Additional properties
Thermal resistance (R-value)
4.25 m²K/W.
5.45 m²K/W.
6.65 m²K/W.
Sustainability data
Country of product manufacture
United Kingdom
United Kingdom
United Kingdom
Manufacturing plant location
United Kingdom
United Kingdom
United Kingdom
Material
Polyisocyanurate (PIR)
Polyisocyanurate (PIR)
Polyisocyanurate (PIR)