How to determine the optimum width of glass spacer bars for broken bridge aluminium doors and windows
Consideration of thermal insulation performance requirements
- Generally speaking, from the perspective of heat insulation, if you wish to obtain better heat insulation, wider spacer bars are a better choice. Usually, the insulation effect is more significant when the thickness of the air layer is between 12 - 20mm.
Combined with the number of layers and thickness of the glass
- The number of glass layers and thickness will affect the choice of spacer width. For double glazing, the spacer width can be relatively narrower, generally around 9 - 12mm. However, in the case of triple glazing, a spacer width of between 12 - 16mm may be required to ensure that there is sufficient air between each layer of glass to provide insulation. At the same time, thicker glass with the right width of spacer will provide better insulation.
Consideration of cost and space limitation
- Although wider spacer bars are good for heat insulation, they will increase the cost. This is because the wider the spacer bar, the more material is required and it may affect the overall structure and weight of the window or door. It is also important to consider installation space limitations. In some space-constrained window and door installation locations, it may not be possible to use a spacer strip that is too wide.
