What Insulation is the Close-R Cavity closer?
The Close-R range is made of PIR or Polyisocyanurate insulation. It is afoam insulation, used to insulate cavities closest to the areas where thermal bridging could fail, like window and door openings.
PIR Insulations is considered an upgrade to PUR. PU solutions are characterised bytheir fine closed cell foam structures. The fine microstructure forms a strong insulating barrier, which greatly impedes the conduction of heat (and cold) and is an efficient insulation choice.
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