Definition And Function Of Insulation Strips

The insulation strip is an important part of the broken bridge aluminum window. The "bridge" in the name "broken bridge aluminum" refers to the "cold and hot bridge" in the material science sense, and the "break" character represents the action, which is to "break the cold and hot bridge".

Specifically, because aluminum alloy is a metal that conducts heat quickly, when there is a significant difference in temperature between inside and outside the room, aluminum alloy can serve as a "bridge" for transferring heat. When such materials are used for doors and windows, their insulation performance is poor. And the bridge cutting aluminum has come up with a way to improve it, dividing the aluminum profile in half and then reconnecting the two end profiles with a section of material with lower thermal conductivity, which is the insulation strip. In theory, the wider the width of the insulation strip, the better the insulation effect. However, when the width of the insulating strip reaches about 35mm, it will not change the heat transfer coefficient (K value) of the whole window much.

All insulation strips are on the same straight line, forming an effective barrier on the profile, commonly known as isotherm or isothermal layer. When cold and hot exchange is carried out on indoor and outdoor profiles, the entire heat change is relatively uniform, and the cold and hot air will not move randomly, reducing unnecessary heat loss.