Product description
These 80mm roof lights are twin-skin, insulating GRP rooflight sheets that bring natural daylight into a building while matching the thermal build-up of an 80mm insulated roof. With an inner and an outer GRP skin separated by an 80mm cavity, they suit well-insulated, heated buildings where the rooflight should not become a thermal weak point.
Minimum order 30m²
Lead time 6-7 weeks production schedule dependent
Glass Reinforced Polyester Resin (GRP)
- Outer Class 3 CE24E
- Inner Class 1 CE18
8500mm maximum length
50mm filler blocks produced in line with purlin spacings
Typical Applications
The 80mm roof lights are used where strong daylight and high thermal performance are both required. Typical applications include:
- daylight strips in well-insulated warehouse and hall roofs
- continuously heated commercial and industrial buildings
- roofs built up with 80mm insulated roof panels
- projects with elevated energy requirements
The sheet is made from glass reinforced polyester resin (GRP) with an outer skin (Class 3, CE24E) and an inner skin (Class 1, CE18) in a natural translucent finish, giving an overall thickness of 80 mm and a cover width of 1000 mm. Maximum length is 8500 mm, with 50mm filler blocks produced in line with purlin spacings. The minimum order is 30 m², with a lead time of 6 to 7 weeks depending on the production schedule.
When to choose this roof light?
The 80mm roof light matches a roof built up with 80mm insulated roof panels. For a thinner insulated roof the 40mm roof light is the better match, and for an unheated building the single-skin 2.5mm roof light is the more economical option. For thicker build-ups, see the 100mm or 120mm roof light. A full overview is available in our clear roofing sheets section.
Suitable Accessories
For installing the 80mm roof lights we need or recommend:
- Tek screws with sealing washers, matched to a timber or steel substructure. Because of the greater thickness the required screw length is longer. A selection is available among our screws and fixings.
- 50mm filler blocks, produced in line with your purlin spacings to close the profile.
- matching roof panels for the surrounding roof area: 80mm insulated roof panels.
A full overview of accessories is available in our accessories section.
Frequently Asked Questions
Which roof build-up do the 80mm roof lights suit?
They are designed to match a roof built up with 80mm insulated roof panels. For thinner or thicker roofs, choose the corresponding 40mm, 100mm or 120mm roof light so the build-up stays consistent.
Are these roof lights insulating?
Yes. The 80mm roof light is twin-skin with a cavity between the inner and outer GRP skins, giving it thermal performance in line with an 80mm insulated roof. This avoids a thermal weak point in a heated building.
Is there a minimum order quantity?
Yes. The minimum order is 30 m², with a lead time of 6 to 7 weeks depending on the production schedule.
What is the maximum length available?
The maximum length is 8500 mm. The 50mm filler blocks are produced in line with your purlin spacings, so please send us the spacing details with your enquiry.
