Kooltherm Cavity Closer PLUS


Premium performance pre-formed insulated cavity closer

Kingspan Kooltherm Cavity Closer PLUS is manufactured by joining Kingspan Kooltherm Cavity Closer sections to produce a pre-formed frame, for use with masonry cavity walls in England and Wales only.

It is made to specified opening sizes, eliminating the need for temporary timber formers or on-site cutting. This reduces installation time, and helps to achieve airtightness requirements.

Our product brochures include construction details, handling advice and installation guidance.

Kooltherm Cavity Closer and Kooltherm Cavity Closer PLUS

Product information

Product details
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Product details

Thermal conductivity  0.022 W/mK
Sheathing uPVC extrusion
Core Premium performance rigid thermoset phenolic insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and a low Global Warming Potential (GWP)
Available widths 50, 75, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145 and 150 mm
Note that sections can be joined together to suit cavity widths up to 300 mm
Planet Passionate
Through our new Planet Passionate 10-year groupwide sustainability programme, we aim to make significant advances in the sustainability of our business and of our products.

Today, Kooltherm Cavity Closer PLUS is manufactured at one site and offers the following sustainability performance.
Responsible sourcing

Kingspan Kooltherm Cavity Closer produced at Kingspan Insulation’s Selby manufacturing facility is certified to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products) ‘Excellent’.

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General enquiries: 01544 388 601

Technical advice: 01544 387 382