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Glass and ventilation

Solar-control roof lanterns

Solar-control glass reflects or absorbs more of the sun's heat than ordinary glass while still letting plenty of daylight through. On a roof lantern, which faces the sky all day, it is the most effective way to stop the room underneath getting uncomfortably warm in summer.

Configure and priceSee sizes and prices
Roof lantern with solar-control glass under strong summer sun

Get a price for a solar-control roof lantern

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In short: Glass that cuts solar heat gain and glare so the room stays comfortable. Guide prices start from £1,495 including VAT, supply only.

How does solar-control glass work?

A coating on one of the panes reduces the total solar energy transmitted, shown as the g-value. A lower g-value means less heat gets in. The trade-off is a little less visible light and a slight tint, usually blue or neutral grey.

Neutral tints keep colours inside looking natural; blue tints are a little cooler in appearance. Ask for the g-value and light transmission figures, which we include on your quote.

Do I need it?

For large lanterns, south or west-facing roofs, rooms with lots of other glazing and spaces used in the afternoon, solar control is strongly recommended. For a small lantern in a north-facing hallway, standard glass is usually fine.

What does it cost?

Expect roughly 10% on the lantern price compared with standard self-cleaning glass. Guide prices below are for solar-control neutral glass, including VAT.

Sizes and guide prices

Solar-control roof lantern prices by size

Solar-control roof lanterns guide prices
Kerb sizeRoof areaGuide priceConfigure
1000 × 1500 mm1.50 m²£1,495–£1,795£1,246 ex VAT fromConfigure
1000 × 2000 mm2.00 m²£1,695–£1,995£1,412 ex VAT fromConfigure
1500 × 2000 mm3.00 m²£2,195–£2,595£1,829 ex VAT fromConfigure
1500 × 2500 mm3.75 m²£2,495–£2,895£2,079 ex VAT fromConfigure
2000 × 3000 mm6.00 m²£3,495–£4,095£2,912 ex VAT fromConfigure
2000 × 4000 mm8.00 m²£4,495–£5,195£3,746 ex VAT fromConfigure

Guide prices include VAT at 20%, supply only, aluminium with solar-control double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.

Specification

What you get

Purpose
Reduces solar heat gain and glare
Measure
g-value: lower lets in less heat
Tints
Neutral grey or blue
Combines with
Self-cleaning outer pane
Best for
Large, south and west-facing lanterns
Before you order

Three checks

  1. Measure the outside of the kerb, width then length, and check the diagonals. How to measure.
  2. Check the glazing allowance for your extension and whether you need planning permission. See building regulations and planning.
  3. Plan the lift. Your quote gives the approximate weight so your installer can plan access and lifting.
Questions

Solar-control roof lanterns: common questions

Will solar-control glass make the room dark?

It lets slightly less light through than clear glass, but a roof lantern admits so much daylight that most people do not notice the difference.

Is solar control the same as tinted glass?

Solar-control coatings often look slightly tinted, but the performance comes from the coating, not just the colour.

Does it help in winter?

Solar control mainly limits summer heat. Winter heat loss is governed by the U-value, which depends on the glazing unit and frame.

Can blinds do the same job?

Internal blinds reduce glare but the heat is already inside the room. Glass that stops the heat at the roof is more effective.

Delivery areas

Solar-control roof lanterns by area

We deliver solar-control roof lanterns across mainland Britain. Choose your area for local delivery and regulation notes.

England

Wales

Scotland

Northern Ireland

Fixed price in writing

Know the price before you order.

Configure your lantern for a guide price, then get a fixed written quote with delivery to your postcode.

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