FAQs

Collection of your order is possible from our factory in Cambridge; Queens Business Park, Wilbraham Road, Fulbourn, Cambridge CB21 5GT. The same lead/delivery times apply.

Please note: An appropriate vehicle MUST be used for collection, bearing in mind fork-loading, dimensions (allowing for packaging) and weight of your order. Rooflights must be transported flat.

The frames are dual colour, coated with marine grade polyester powder coating; supplied in slate grey (RAL 7015) externally and pure white (RAL 9010) internally, as standard. If you would prefer an alternative external colour please contact us for a quote.

A good carpenter/builder can build an upstand with the required specification, either new or existing, as long as the following guidelines are adhered to:

Ensure the upstand is square by measuring across the diagonally opposite corners.

Allow for the correct pitch.

Minimum height of the upstand is 150mm.

Upstand width should be 100mm (including finishes) for most of our rooflights. Our Roof Access Doors and Sliding rooflight range require a 150mm wide upstand.

Whether Next Generation Rooflights has supplied your upstand, or if you have constructed it yourself, it is important you instruct your roofer to correctly dress the upstand to ensure the correct fitting of your Vision AGI rooflight. Please ensure the roof membrane thickness does not exceed 8mm to the top most 100mm of the upstand and make sure that the top face of the upstand is free from undulations that exceed 3mm.

They can be installed in flat roofs as long as the upstand/kerb detail has a minimum 3 degree pitch (52mm per metre) to allow for water run-off. The Walk On rooflights should have a 1 degree pitch (17mm per metre).

Our rooflights come with a 1 year warranty as standard; you can extend this to 10 years by going online and registering your details.

• Painted Surfaces – 10 years
• Glass – 10 years*
• Silicone Sealants – 10 years
• Operating Gear – 12 months from date of purchase
• Installation – 12 months from date of install

Please note: To maintain these warranties you will need to follow the instructions detailed in our Operation & Maintenance (O & M) Guide.

*Nickle Sulphide or any other inclusions in the glass that may cause a spontaneous breakage are not covered by the 10 year glass warranty. They are an extremely rare occurrence and not covered by any of the glass manufacturers, whether the glass is Heat Soak Tested following Thermal Toughening or not.

We can complete a Site Survey of your site to ensure that the upstand has been constructed correctly, to measure the opening to which our upstand is to be fitted or to check accessibility of the site.

Although our rooflights are specially designed to be easy to install, should you prefer not to do it yourself, our highly experienced and professional NGR Installation Teams, are available to install your rooflight/s throughout the UK.

For more information please contact us on 01223 792244 to discuss your requirements in further detail. Or email us with your requirements.

The laminated inner pane protects you against UV damage.

Our standard glass specification is 32.8mm DGU. It consists of a heat soak toughened safety glass outer a warm edge spacer and laminated inner pane with low-e coating. The low-e coating allows the sun’s natural heat (solar gain) to pass through the panes then the low-e coating reflects the heat gain back into the room, which is more energy efficient.

The warm edge spacer is made of an insulating plastic composite material that becomes a barrier to heat loss, keeping the edge of the unit warm, resulting in less heat loss. This is not the case with Walk-On Rooflights, as the glass specification is determined by the size & loading requirements.

However, you can add Solar Control Coating to reflect more of the sun’s radiation and help to reduce the build-up of heat in the room below. Solar Control Coating can be specified for any of our rooflights.

Your rooflight will be delivered by our mainland UK dedicated delivery provider.

It is your responsibility to ensure there are enough people available to off load your rooflight/s safely.

The Dispatch Confirmation email will detail the approximate size and weight of the rooflight/s and how many people will be required to unload.

The number of people advised to off-load (is to be used as a guide only, dependent on what each person is capable of lifting) and does not include the delivery driver (or, if relevant, our installation team).

Please refer to the O & M Guide that is delivered with your Rooflights.

Before measuring it is important to check that the walls to your upstand are parallel and square and that your upstand is finished and fully weathered.

Measure the overall finished kerb upstand across the fall of your roof, from outside edge to outside edge of the upstand. This will be your Width dimension.

Measure the overall finished kerb upstand in the same direction as the fall of your roof, from outside edge to outside edge of the upstand. This will be your Height dimension.

Please refer to our Quoted Size Guides on the Resources page for further information;

Simply send us an email to [email protected] with your quotation and we will then return the relevent paperwork to get everything moving.

Or alternatively, you could call us on 01223 792244 and place your order in person over the phone.

Rooflights including Aluminium rooflights are installed with a supporting upstand/kerb detail. Upstands are used to keep the glazed section of the rooflight off of the roof’s surface and are typically made of timber.

When ordering your Next Generation Rooflight(s) you will be offered the option of being supplied with our upstand. We would recommend that this be used as this will ensure that you have the correct size and pitch (to allow for water run-off) to your Upstand.

Current Building Regulations recommend that the upstand must protrude at least 150mm (at its lowest point) above the finished roof surface.

We detail the weight of each rooflight on your quotation.

It is very important to us your rooflight arrives on site in the same condition it left us, so it will be fully protected.

The rooflight will be packaged with shrink wrap on a pallet and laid flat.

For our standard products our lead time is 3-4 weeks.

Bespoke rooflights, can vary depending on the complexity of the order, we aim to deliver these types of rooflights within 5-6 weeks (from design sign-off).

All our electric rooflights run on 24V DC. We include the transformer and relevant components to operate your rooflight. The wiring diagrams needed will be sent with your rooflight. They must be wired in and signed off by a qualified electrician for your insurance purposes.

The sizes listed are the external dimensions of your finished kerb upstand. The rooflight is designed to fit a kerb upstand of this size.

The Width dimension is the overall measurement to the kerb upstand directed across the fall of the roof. The Height dimension is the overall measurement of the kerb upstand running in the same direction as the fall of the roof.

Our payment terms are full settlement on placement of order. We may offer different terms on larger orders, please contact us for further information.

You can have any shape rooflight you like. We call this a Bespoke Rooflight. Just contact us with the details and we will provide a full quotation.

They available online please visit our terms and conditions page.

The hinges on our rooflights are always on the width dimension (running across the fall of the roof).