SPECIFICATION
How to choose glass for windows and doors
Clear, tinted, Low-E, laminated and insulated glass explained in plain terms, and what each one is actually for.
Sep 19, 2026
Single, double or insulated
Insulated units place two panes with a sealed gap between them. They are the usual choice where comfort, condensation control and energy performance matter.
Low-E coatings
A low-emissivity coating reflects heat back into the room in cold climates and reduces solar gain in hot ones. The coating position matters and is chosen for the climate.
Laminated glass
Two panes bonded with an interlayer. It holds together when broken and is used where safety, security or noise reduction is part of the specification.
Tinted and reflective options
Body-tinted or reflective glass reduces glare and solar gain, and changes the appearance of the facade. Samples are worth reviewing before ordering.
Thickness and build-up
The build-up is chosen for the panel size and the performance target, not just the frame. Large sliding panels need thicker glass than a small casement sash.
What we need from you
Tell us the climate, the orientation of the facade and any performance target in your project documents, and we will match the build-up to it.
Glass is where most of the performance of an opening comes from, so it deserves a decision rather than a default.