01/09/2026
Whatâs a âthermal breakâ and why does it matter when buying aluminium doors?
Aluminium is a brilliant conductor⌠of heat AND cold.
A thermal break is an insulating strip sandwiched between the inner and outer aluminium sections of your door.
It stops cold bridging which is the transfer of cold from the outside to the inside of the frame.
This in turn makes the doors much more thermally efficient and reduced the likelihood of condensation on the inside of the doors.