Dimensions 1190 × 450 mm
Thickness

90mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

6

Sales Unit

Pack

Unit Coverage

3.21m2

Manufacturers Reference

TC90

Thermal Conductivity

0.021W/mK

Fire Rating

Euroclass E

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

2.80kg/m2

Product Range

Celotex Thermaclass Cavity Wall Insulation

Useful Information
This product is tongue and groove and all sheets interlock

90mm Thermaclass Cavity Wall 21 – Celotex Thermaclass (1190mm x 450mm x 90mm) – 3.21m2 (Pack of 6)

(12 customer reviews)
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Pack of 6 (3.21m2)
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£70.80 ex VAT

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Thickness
Useful Information
This product is tongue and groove and all sheets interlock

90mm Thermaclass

Thermaclass Cavity Wall 21 is an insulation material designed for full fill masonry cavity wall applications. The boards are made up of a polyisocyanurate (PIR) core featuring a low emissivity foil facing bonded to each side which provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value. Thermaclass Cavity Wall 21 is manufactured with a blowing agent that is CFC/HCFC free and has zero Ozone Depletion Potential (ODP) with a low Global Warming Potential (GWP). The board is available 1190mm by 450mm (1205mm by 465mm including tongue).
This Thermaclass product has a thickness of 90mm with a sheet coverage of 0.5355 m2. In addition to this, 90mm Thermaclass boasts an excellent thermal performance of 0.021W/mK.

Key Features:

  • Tongue and groove edge profile
  • Long lifespan
  • Durable and rigid
  • Easy and simple installation process
  • Excellent thermal performance
  • Built with the protection from weather conditions in mind

The Thermaclass boards feature a tongue and groove edge providing a continuous layer of insulation with minimal gaps to avoid thermal bridging and increase the thermal quality of the product. This also provides a protective layer against wind and rain and eliminates the need to use foil tape on board joins.

This product is light weight and easy to cut, handle, and install. The board sizes are designed to fit within cavity wall tie spacings. The boards can be cut, if necessary, by using a fine-toothed saw or scoring each side over a hard edge with a sharp blade.

The board should be stored indoors in a dry space on a flat surface. If indoor storage is not an option, weatherproofing materials should be applied to protect the boards from weather conditions. If boards get slightly wet, they should be wiped over and left to dry however if they get wet, they should not be used.

Celotex Thermaclass 90mm

Thermaclass Cavity Wall 21 should not be used in the external walls of buildings over 18 metres in height (England and Wales) or 11 metres in height (Scotland). Recent changes to Building Regulations mean that only non-combustible insulation or insulation of limited combustibility can be used in buildings of that height.

Safety Certifications:
BBA approved – certificate 16/5343
Euroclass E Reaction to Fire classification, according to EN 13501-1
manufactured under Quality Management Standard – ISO 9001:2015
CE Marked (20.DOPTCCW-01) to BS EN 13165

Brand: Celotex
Length: 1190mm (1205mm including tongue)
Width: 450mm (465mm including tongue)
Thickness: 90mm
Material: Polyisocyanurate
Facings: Low emissivity foil
Thermal Conductivity: 0.021W/mK


Dimensions 1190 × 450 mm
Thickness

90mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

6

Sales Unit

Pack

Unit Coverage

3.21m2

Manufacturers Reference

TC90

Thermal Conductivity

0.021W/mK

Fire Rating

Euroclass E

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

2.80kg/m2

Product Range

Celotex Thermaclass Cavity Wall Insulation

Dimensions 1190 × 450 mm
Thickness

90mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

6

Sales Unit

Pack

Unit Coverage

3.21m2

Manufacturers Reference

TC90

Thermal Conductivity

0.021W/mK

Fire Rating

Euroclass E

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

2.80kg/m2

Product Range

Celotex Thermaclass Cavity Wall Insulation

12 reviews for 90mm Thermaclass Cavity Wall 21 – Celotex Thermaclass (1190mm x 450mm x 90mm) – 3.21m2 (Pack of 6)

  1. Sifiso

    Used as an alternative for Celotex cavity insualtion, impressed

  2. Naveen

    Five stars from me! Reliable and efficient.

  3. Mark Grikovitz

    Much easier to install with the tongue and groove edge.

  4. Frankie D

    Fantastic product all fits together only reason didn’t give 5 star was because had to buy a pallet

  5. Janice Bettrace

    Ordered a pallet of 90mm Thermaclass was advised delivery in 7 to 10 days but was very happy Karl in the office got it in 4 days 🙂 Thank you.

  6. Maisy

    Very good

  7. Tel

    Excellent website, will order another pallet soon for an upcoming project.

  8. Billy

    Would be good if you could order individually but lucky I needed just under a pallet

  9. Gav york

    Needed 2 pallets, no where else had them for attest 2-3 weeks. got a delivery in about a week or so, was well happy

  10. Darren Newman

    This is the best price online for 90mm Thermaclass

  11. Mr Findlay

    Had the pleasure of dealing with James, really helpful, good delivery, no complaints.

  12. Mr Headley

    Really impressed

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