How to Insulate a Glass Conservatory Roof

Glass conservatory roofs present a particular challenge because they allow heat to escape rapidly in winter and trap excessive solar heat in summer. The glass itself is a poor insulator, even when double-glazed.

The most effective solution for a glass roof is to fit an insulated ceiling beneath it. This creates an air gap and thermal barrier that dramatically improves the room's comfort.

For glass roofs, we may also apply an optional internal glare reduction treatment before fitting the ceiling. This helps manage light transmission and reduces the greenhouse effect.

The existing glass roof remains fully intact above the new ceiling. There's no need to remove, replace, or alter it in any way — and because nothing changes externally, planning permission is not normally required.

Our internal ceiling system works with all types of glass conservatory roofs, including self-cleaning and solar control glass. The glass continues to shed water and clean itself as normal.