Energy-efficient triple-glazed roof window

Standard Plus windows with two glazing cavities are designed for people who want to invest in comfort and greater energy efficiency. They offer the best value for money. GLL Standard Plus windows have triple glazing that provides better noise protection and greater protection against heat loss. The glazing unit’s two argon-filled cavities and three panes of glass give it ideal thermal insulation properties. These windows have a thermal transmittance value of Uw=1,1(W/m2K).

GLL B roof window with bottom handle

We recommend a roof window with a bottom handle for lofts with a high knee wall. In these spaces, roof windows are fitted high up, and a bottom handle allows fully functional use of the loft space.

Or a GLL roof window with top control bar

Choose this option when the lower edge of the window is approximately 90cm above the floor. This allows you to place a table, sofa or desk beneath it without obstructing its opening.

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