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A1 SkyLIGHT™ Double-Glazed Roof Window

A1 SkyLIGHT™ Double-Glazed Roof Window

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A1 SkyLIGHT™ Double-Glazed Roof Window A1 SkyLIGHT™ Double-Glazed Roof Window A1 SkyLIGHT™ Double-Glazed Roof Window A1 SkyLIGHT™ Double-Glazed Roof Window

Product Code [CITRUS]

Our Price: £199.99

Bolt Size

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The A1 SkyLIGHT™ Double-Glazed Roof Window is an easy-to-fit, fixed roof window which provides natural light and warmth for traditional, felt-roofed wooden garden buildings. It's simple design means that this skylight window is ideal for DIY fitting requiring no silicone or sealant to maintain its weather integrity. The skylight window comes with 18mm double-glazed toughened glass, and is extremely long-lasting, designed to be tough and durable in all environments. It weighs less than 7.5kg, and is suitable for fitting to any thickness of roof material and any design of building including sheds, workshops, summerhouses, garden offices, garages and log cabins. The A1 SkyLIGHT™ Double-Glazed Roof Window is available as an optional extra for TGB and A1 Sheds range, however it can also be fitted to most other brands of garden building. DELIVERY IS FREE OF CHARGE



  • Self-sealing frame doesn't require additional sealant
  • Ideal for DIY retro-fitting
  • Fully weather tight
  • Stainless steel fixings
  • Skylight includes all fixings and trims
  • Suits all TGB Garden Buildings and A1 Sheds (& many more)

Frequently Asked Questions

Q:What is the minimum and maximum roof pitch the window can be fitted to?
A: The window can be fitted to any pitch from 5° to 45°.

Q: What is the minimum and maximum thickness of roof material the window can fit to?
A: The skylight comes with 40mm bolts to fit a timber thickness up to 15mm, however we can also supply 50mm bolts for timber up to 25mm.

Q: What size is the window?
A: The window is approximately 500x500cm on the outside.

Q: What space do I need between the rafters on the roof?
A: There needs to be a minimum space of 500mm between the rafters to accommodate the width of the skylight window.

Q: My roof is OSB is this still suitable?
A: Yes, the window can be bolted to any material including OSB, chipboard, tongue & groove, or wooden planks.

Q: Do I need any special tools or skills to fit one?
A: No special skills or tools are required, and any competent DIY’er can install the window in less than 2 hours.

Q: Where is the best place to fit my window?
A: Ideally, as near to the top ridge line as possible. Make sure it doesn't cross a vertical joint in your felt line or clash with an internal purlin. 

Q: My felt runs horizontally. Is this OK?
A: Yes, it is perfectly acceptable to fit the window across horizontal felt lines.

Q: Can I fit more than one window to my workshop?
A: Yes, the more the better.

Q: Do you supply the sticky glue/sealant with the kit?
A: Yes, you don't need any additional sealant or glue to install the skylight as it comes with an oil based compression gasket which ensures a good seal. 

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IMPORTANT: Imperial sizes shown in the description are approximate, and are provided by the manufacturer purely as a guide. Please refer to the metric dimensions for more accurate sizes, or contact us prior to purchase if you have any specific requirements.