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May 16, 2016 at 9:39 am
#2281
Jonny Parker
Participant
Hi,
Great question.
uPVC joinery consists of a series of sealed air chambers in a lattice of uPVC. This offers a far greater thermal performance as it phases down the heat transmission using trapped compartmentalized air.
So its a very different design to a thermal break which is normally a single layer of uPVC sandwiched between aluminum joinery. (No air to phase down heat transmission)
Cheers
Jonny