Thermaclass Cavity Wall 21 - Insulation Online https://www.insulation-online.com/range/thermaclass-cavity-wall-21/ Your fast, efficient and caring service for the supply of competitively priced, trusted building and insulation products. Thu, 11 Jul 2024 10:25:59 +0000 en-GB hourly 1 https://wordpress.org/?v=6.8.3 Celotex Thermaclass Cavity Wall 21 https://www.insulation-online.com/product/celotex-thermaclass-cavity-wall-21/ Mon, 22 May 2023 13:04:28 +0000 https://insulation-online.com/?post_type=product&p=1771 Celotex Thermaclass Cavity Wall 21, a rigid PIR foam insulation board with low emissivity foil on both faces, is suitable for the following applications: cavity wall applications with up to a 10mm residual cavity or full fill cavity applications with no residual cavity.

Available in thicknesses from 90mm - 140mm

Has a Thermal Conductivity of 0.021 W/mK, a compressive strength of 120kPa and a Vapour Resistance that typically exceeds 300 MNs/gm.

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]]> Lower lambda value, higher performance, rigid Polyisocyanurate (PIR) full fill cavity wall insulation board

Comes in tongue & grooved conveniently sized boards for installation between cavity wall ties.

Includes low emissivity foil facings giving improved thermal insulation performance within a 10mm residual cavity air space.

Can be installed with up to a 10mm residual cavity or as a full fill solution with no residual cavity.

Can be used to provide energy performance of new and existing buildings.

BBA certified.

Provides reliable long term energy savings for buildings.

Thicknesses and Availability:

Available in most popular thicknesses from the manufacturer; short lead-times apply as we may need to get the products in from Celotex before delivering to site.

This Thermaclass Cavity Wall 21 Range includes the following available product thicknesses: 90mm, 115mm and 140mm.

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