Brighten up flat roofs with Brett Martin Mardome roof domes, engineered to deliver maximum natural daylight, excellent thermal insulation, and robust durability. Whether you need the Mardome Trade range, complete with an insulated PVCu kerb, or the Mardome Reflex, designed specifically to fit existing upstands, our selection brings top-tier weatherproofing and sleek, low-profile aesthetics to residential and commercial projects alike.
Full BBA approval, high-impact polycarbonate construction, and energy-efficient double-, triple-, and quad-skin glazing options make these UK-manufactured roof domes an ideal choice for new builds, refurbishments, and modern extensions.
Brett Martin Mardome roof domes are premium flat roof daylighting solutions for residential, commercial, and industrial applications. Crafted from high-impact polycarbonate, Mardome rooflights provide superior weather resistance, impact strength (up to 200 times stronger than glass), and thermal performance compliant with current UK Building Regulations (Part L).
| Features | Mardome Trade | Mardome Reflex | Mardome Circular |
| Best Used For | New flat roofs or full replacements. | Fitting directly to existing upstands. | Architectural design & unique features. |
| Kerb/Upstand Included? | Yes (150mm or 300mm PVCu). | No (Glazing-only specification). | Optional GRP kerb or glazing-only. |
| Glazing Options | Single, Double, Triple, Quad Skin. | Double, Triple Skin. | Single, Double, Triple Skin. |
| Ventilation Options | Trickle Vents, Automatic Humidity, Powered Extract. | Unvented. | Unvented. |
| Opening Options | Manual, Electric, Access Hatch. | Fixed Glazing. | Fixed Glazing. |
For a Mardome Trade unit (with kerb), measure the structural roof opening size. For a Mardome Reflex unit (glazing only), measure the external dimensions of your existing upstand flange to ensure proper overlap and fixing.
Mardome roof domes are designed for flat roof applications with pitches typically between 0° and 15°. For steeper roof angles, consult our technical team for tailored guidance.
Triple skin polycarbonate roof domes feature an extra internal insulating air gap, providing lower U-values and significantly better thermal performance compared to double skin alternatives. Triple skin is strongly recommended to comply with current UK Part L Building Regulations for heated living areas.
If you already have a sound kerb, the Mardome Reflex range is designed for glazing replacement. However, if you require opening mechanisms or integrated trickle/powered ventilation, upgrading to a full Mardome Trade rooflight with an integrated PVCu kerb is the ideal choice.