50mm Kooltherm Cavity Closer KKCC50 (Pack of 10)

Code: IW2443

Kingspan Kooltherm Cavity Closer is a uPVC extrusion with a premium performance fibre-free rigid thermoset phenolic core, for use in England and Wales only.

It provides a simple and efficient method of closing cavities around openings in masonry cavity walls, and has a thermal conductivity of 0.021 W/mK.



Lead Time: 2-5 day(s)


The delivery charge on orders below £200 is £60 including VAT. Any orders above £200 are subjected to the standard delivery charge of £36. Delivery lead time is up to 5 working days from the date of the order. See Full Transport Policy

In Stock

Delivery Time TBC
Low Wholesale Prices
Open to businesses & public





  • Thermal conductivity: 0.021 W/mK across all thicknesses
  • Sheating: 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)
  • Length: 2.4m
  • 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


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