Slimline aluminium roof lantern on flat roof extension

Aluminium

Aluminium Slimline Lanterns

Our aluminium slimline roof lanterns sit elegantly on flat roof extensions, flooding interiors with natural light through ultra-slim aluminium frames. Thermally broken profiles deliver excellent energy performance while the minimal frame design maximises the glass area.

Approved installerCortizo

Features & Benefits

Ultra-Slim Profiles

Minimal frame width for maximum glass and light

Thermal Performance

Thermally broken aluminium with U-values as low as 1.2 W/m²K

Self-Cleaning Glass

Optional self-cleaning coating reduces maintenance

Any RAL Colour

Powder-coated frames in any colour to match your extension

Architectural Impact

Creates a stunning focal point in any flat-roof extension or kitchen

Our Installations

Roof lantern over modern kitchen island
Roof lantern flooding dining room with light
Roof lantern on wide rear extension
Roof lantern aerial view from above

Technical Specifications

Frame
Thermally broken aluminium profiles
Thermal Performance
U-values from 1.4 W/m²K
Glass Options
Self-cleaning glass option (Pilkington Activ)
Solar Control
Blue or neutral solar control glass available
Systems:Cortizo

Frequently Asked Questions

How much do roof lanterns cost?

Final price depends on lantern size and glass specification (double-glazed standard, solar-control or self-cleaning options). Every installation is FENSA registered with a 10-year CPA insurance-backed guarantee. Request a free no-obligation quote.

Do roof lanterns need planning permission?

Most cases don't require it if they don't extend more than 150mm above the existing roof slope. Listed buildings may need approval — our team can advise during the free survey.

Do they make a room too hot?

Modern systems use solar control glass and thermally broken frames to regulate temperature. We can specify blue or neutral solar control glass.

What guarantees do you offer on roof lanterns?

Our slimline aluminium roof lantern carries a 10-year manufacturer warranty on the powder-coated frame and a 5-year warranty on the sealed glass units against seal failure or misting. The structural opening and weatherproofing are FENSA registered, and Vitrum Solutions adds a 10-year CPA insurance-backed guarantee on the installation workmanship.

Interested in aluminium slimline lanterns?

Free quote · Honest pricing · No obligation

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FENSACPASecured by Design