Opening rooflights

Opening rooflights: design and installation choices

Plan a manual or powered opening rooflight with the kerb, glazing, controls and installation environment specified together.

An opening rooflight adds ventilation to overhead daylight. A manual model and a powered model have different access, wiring and maintenance needs.

Specify glazing, kerb, waterproofing and control equipment together. Some powered products restrict humid environments; a kitchen or bathroom needs explicit product confirmation.

Measurement reference

Enter the width and length for the selected opening or kerb reference. These are not finished glass cutting dimensions.

Budget and optional extras

These model-specific ranges do not predict your selected unit. Kerb, wiring, sensors, lifting and roof works can be additional.

Published prices on the main page state their reference size, supply or fitting scope, VAT basis and source. Add-ons are individually requested in the configurator and need separate supplier pricing.

Opening rooflights for your project

Common enquiry briefs include kitchen extension, living space, stairwell, humid room — suitability review. Describe the intended use and the supporting construction so the supplier can assess the complete specification. Different applications can need different glass processing, fixings and installation details.

Specify controls as a package

A rain sensor, remote and wall switch must work with the same actuator and controller. Ask what happens during a power failure.

Measure the selected system

Different suppliers use different kerb and opening references. Do not transfer an allowance from one rooflight to another.

What to include in a made-to-measure quote

Compare quotes using the same dimensions, quantities, finish, glass construction and installation scope. If you have a drawing or an existing specification, include its reference and identify which details still need advice.

• Opening control: Mains power, actuators and sensors must be compatible.
• What do your dimensions describe?: Use the chosen system's ordering drawing; opening and kerb sizes differ.
• Glazing preference: Request a complete safety and thermal build.
• Room environment: Some powered systems exclude high humidity; confirm the actual model.
• Rain sensor: Confirm power-loss behaviour and manual override.
• Wind / temperature controls: Compatibility and control priorities need agreement.
• Internal blind: Choose a blind compatible with the opening mechanism.
• Compatible kerb / upstand: Agree insulation, waterproofing and measurement reference.
• Electrical connection and commissioning: Include a qualified installer and accessible controls.
• What should the quote include?: Ask suppliers to itemise delivery, measurement and fitting separately.

Cut-to-size dimensions, edges and fabrication

Measure the finished glass only when the fitting allowances and support details are known. Otherwise identify the opening or existing panel you measured and request a survey. Give each different size its own basket line, with its quantity and drawing reference.

Holes, cut-outs, shaped edges and interfaces with hardware should be settled before manufacture. The finished glass construction and any coatings must suit the intended environment. A screen preview or concept photograph cannot replace a sample, survey or product-specific installation drawing.

Supplier checks before manufacture

• A ventilating rooflight is not automatically an escape, access or smoke-control system.
• Confirm minimum pitch, waterproofing and humidity suitability for the exact supplied system.
• The supplier must agree the final sizes, construction and compatible fittings before manufacture.
• Confirm survey, packaging, delivery, access and installation responsibilities in the written quote.

Requesting comparable glass quotes

Save the choices you know and ask for help with the rest. The quote basket records a specification request rather than placing a manufacturing order. A firm quote needs an agreed final build, dimensions, delivery arrangements and any installation or design work.

When comparing proposals, check that glass-only supply and supply with fitting cover the same scope. Ask who provides measurement, drawings, supports, compatible hardware, lifting access and finishing work. Keep the final approved specification with the order.