Celotex TC1090 Thermaclass Cavity Wall 21 90mm x 450mm x 1190mm

Celotex Thermaclass Cavity Wall 21

A polyisocyanurate (PIR) insulation board for full-fill cavity wall applications, with excellent thermal performance (0.021 W/m.K). Featuring a low emissivity foil facing, 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.

When using Celotex Thermaclass Cavity Wall 21, you need to satisfy yourself that the use of the product meets all relevant national Building Regulations and guidance as well as local, national and other applicable standards relevant to your construction or application, including requirements in relation to fire and applicable height restrictions.

Celotex 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.