Roof lantern Hooglanderveen, matched to an efficient home

Hooglanderveen is a village within the municipality of Amersfoort, right next to Vathorst. Alongside the old village centre there are many recently built homes. If you are planning an extension there, you want a glass roof lantern that suits a well-insulated house. DagLichtDesign makes it to measure in Barneveld, approx. 22 km away. The most important choice here is often the glass.

Which glass suits a new-build home

A recent home is well insulated. A roof lantern is then a relatively large area of glass in the building envelope. As standard you get HR++ double glazing with a U-value of about 1.1 W/m²K. Triple glazing, also called HR+++, comes out at about 0.5 W/m²K and dampens sound slightly better: approx. 36 dB against 32 dB.

So is triple glazing always better? Not necessarily. For a 4 m² roof lantern, triple glazing saves 65 to 90 m³ of gas in an average winter, and it does not always pay for itself within ten years. Above a bedroom or with a north or west orientation it makes more sense. More on this under triple glazing for a roof lantern.

• HR++ double glazing as standard, U about 1.1 W/m²K
• Triple glazing optional, U about 0.5 W/m²K
• Both are listed side by side in the quote
• Facing south? Consider solar control glass

Roof lantern Hooglanderveen on a new extension

With newer terraced houses it is often about an extension a few metres deep. A mono-pitch roof lantern fits well there and can be up to 5 m wide in one panel. For overhead and side light against the rear wall, choose a wall-abutting lean-to, with the connection profile that suits your wall.

If you are planning an extension shortly after your home was handed over, find out first which rules apply. General guidance is under permits for a roof lantern; the municipality of Amersfoort has the final say.

If your garden faces south and the extension gets little shade from neighbours or trees, ask for solar control glass to be included in the quote. Facing north that is usually unnecessary, and that is exactly where triple glazing is more worth considering.

Frequently asked questions