Knowledge Center

Thermal break


A thermal break is an element of low thermal conductivity placed in an assembly to reduce or prevent the flow of thermal energy between conductive materials. InterlockTM triple-contact interlocking joints create a thermal break to completely seal gaps, block cold air between door sections, and prevent cold or heat transfer. Wood end blocks are also the most effective thermal break of all.

Door Design Inc
4104 Fairview Street , Burlington (ON) L7L 4Y8 | Tel. : (905) 681-0100


Area served: Hamilton, Halton, Niagara and surrounding areas.
Business hours: Monday to Friday from 8:00 AM to 5:00 PM and Saturdays from 10:00 AM to 2:00 PM

CFIB (Canadian Federation of Independent Business)


© Garaga Inc. 2011 Terms and conditions of use
Garaga