SKU: 58136002301

Thermaclass Cavity Wall 21 - 1190mm x 450mm

Sale price$101.00 Regular price$112.22
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Thermaclass Cavity Wall 21 - 1190mm x 450mmThickness Sheets Per Pallet Sheet Coverage Pallet Coverage 90mm 96 0. 5355 m2 51. 4 m2 115mm 80 0. 5355 m2 42. 8 m2 140mm 64 0. 5355 m2 34. 2 m2 Thermaclass Cavity Wall 21 is an easy to install, high thermal performance polyisocyanurate (PIR) insulation board for full fill cavity wall applications, with a thermal conductivity of 0. 021 W m. K. It can be installed with up to a 10mm residual cavity (to support ease of installation and accommodate mortar

Thickness Sheets Per Pallet Sheet Coverage Pallet Coverage
90mm 96 0.5355 m2 51.4 m2
115mm 80 0.5355 m2 42.8 m2
140mm 64 0.5355 m2 34.2 m2

Thermaclass Cavity Wall 21 is an easy to install, high thermal performance polyisocyanurate (PIR) insulation board for full fill cavity wall applications, with a thermal conductivity of 0.021 W/m.K. It can be installed with up to a 10mm residual cavity (to support ease of installation and accommodate mortar squeeze) or as a full fill solution with no residual cavity.

The boards have a low emissivity foil facing to each side and feature an engineered tongue and groove joint profile, helping to ensure a continuous layer of insulation to maximise thermal performance and provide protection from wind driven rain.

Product Features

  • Lightweight 1190 x 450mm boards (installed dimensions)
  • Tongue and groove edge profile
  • Low emissivity foil facing
  • BBA approved – certificate 16/5343

Product Properties

  • Board size: 1190 x 450mm (installed) 1205 x 465mm (including tongue)
  • Thickness : 90-140mm
  • Material: PIR

Product Performance

  • Lambda: 0.021 W/m.K
  • Reaction to Fire: Euroclass E Reaction to Fire classification, according to EN 13501-1 (Products with this level of classification are not provided with a rating for smoke emission)

Product Benefits

  • Excellent thermal performance with a 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.
  • Easy to install – The boards are 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.

Applications

  • External Walls – full fill cavity wall

Key Considerations

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 58136002301

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4.2 ★★★★★
Based on 6 reviews
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Product Reviews
K
Verified Purchase
Kevin Pierce
Charlottesville, US
★★★★★ 5
Great Product
Size: 40 Cards Display Case Standard
Great quality! Highly recommend. I use this when I attend card shows and to just show off my collention!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
They make your cards look super professional.
Size: 40 Cards Display Case Standard, Size: 40 Cards Display Case Standard
I am moving into my new house soon and over the last month I have purchased 5 of these. They make your cards look super professional. I think I have all that I need but if I ever another one, i would buy this one or I would say that I highly recommend this one, and this is coming from the guy who usually never leaves a review for anything but these are awesome.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
Judith Wolff
San Leandro, US
★★★★★ 5
Excellent item
Size: 40 Cards Display Case Standard
Fast service, great packaging. Love the display case.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 1
Poor Quality
Size: 40 Cards Display Case Standard, Size: 40 Cards Display Case Standard
One shelf was broken. The other 3 were very loose and cracked. Very bad quality. Don’t bother purchasing this
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
B
Verified Purchase
Big_Gregg_B
Massapequa, US
★★★★★ 2
Lots of defects in construction
Size: 40 Cards Display Case Standard
I bought two of these, and at the time of writing this review, currently I've only loaded one with graded cards. First thing, the appearance looks decent, though some minor cosmetic issues here and there on the wood. After I got the display mounted on the wall, I started putting in the graded cards I wanted to display, and at first everything was going well; until I got to the 4 row. I noticed the first card I placed was wobbly, and would lean to the right. I looked at the card case, and figured it must be the case itself, until I put in the 3rd & 4th cards, and they to were wobbly, I ran my finger where the card sit and noticed either chipped wood, or excess glue, which prevent the cards from sitting flush against the rail. I continued to insert more cards, and one the bottom row, I noticed right away that there was a spacing issue between the 4th and 5th rows, and that the board between the two rows is bowed downward. I put a level on it and verified... which absolutely is is bowed. NOT COOL! Let's see how the return process goes now...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2024

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