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The UK's Leading Supplier of Rooflights
Astroglaze Multi Part Rooflights

Astroglaze Multi-Part & Bespoke Rooflight

Astroglaze Multi-Part Glass RooflightFor those jobs that require a large expanse of glass, and still need to look good, Astroglaze is also available as a multi-part system. The rooflight is supplied in smaller sections for easy construction on site.

During assembly the Astroglaze unit is supported until the joins between the panes are secured with a silicone sealant.
The finished rooflight sits firmly on the builder’s kerb in the usual way. Our multi-part glass rooflights provide a great way to glaze large areas and they come in either a grey, black or white polyester powder coating (see single units).

Maximum spans up to 3.2m can be accommodated. There is no limit on the length of the rooflight. Bay centres depend on span width. All outer panes have sandblasted borders for improved aesthetics.

Get a Quote< In addition to the standard glazing specification as listed, glazing can be specified as:
• Tinted • Solar Control • Dirt Resistant • Obscured • Toughened
inner glazing panes, as well as a wide range of other options – please contact our sales office for more details.

Glazing elements are contained within a thermally enhanced, welded aluminium frame, for installation to a builders’ kerb.

Astroglaze White Multi-Part Fixed Glass Rooflight Astroglaze Multi-Part Fixed Glass Rooflight Internal View

Astroglaze Multi-Part & Bespoke Rooflight Benefits

Standard Glass Specification
Double glazed units:
• 6/8mm clear Heat Soaked toughened (HST) outer
• 16/18mm Argon filled cavity
• 8.8mm low-E laminated inner

Triple glazed units:
• 6mm clear Heat Soaked toughened (HST) outer
• 16mm Argon filled cavity
• 6mm toughened middle
• 16mm Argon filled cavity
• 8.8mm low-E laminated inner

Frame Finish
• All units feature sealed double glazed units contained within a thermally enhanced aluminium frame, which is available in 3 polyester powder coated colours as standard: White RAL: 9010, Anthracite Grey RAL: 7016, Jet Black RAL: 9005. Other RAL colours are available. Please contact us for further information

Thermal Insulation
• U-values for double glazed multipart rooflights are as low as 1.4 W/m2k, exceeding the requirement for Part L compliance. Triple glazed units achieve total product U-values as low as
0.77 W/m2k centre pane  

• U-value calculations can be supplied for specific rooflight configurations

Wall Abutment
• Astroglaze rooflights can be designed to accommodate wall abutment on up to three sides if required. This is particularly useful if a rooflight is required to be installed in a small roof area or tight space


Standard Kerb Detail

Astroglaze Mutli-Part Glass Rooflight Drawing


If you would like assistance at any time about any of the rooflights or would like further details of our range, then please do not hesitate to contact us on 01276 451555, e-mail us at or use this e-mail form to contact us.