81mm Adapter Kerb

£140.66£1,062.00 Price Excludes VAT

The 81mm vertical adapter kerb is an ideal solution for a pre-existing upstand that requires ventilation via a rooflight, the kerb fixes directly to the existing kerb and won’t need any additional waterproofing.

Please note that if you choose a wormgear operated rooflight you will require a winding rod to operate, please follow the linked product below.

Unlike standard kerbs, when taking sizes to choose the appropriate kerb, use the external upstand sizes.



Our polycarbonate roof lights offer high impact resistance whilst having minimalistic and modern aesthetics, offering a smart solution that allows natural light to fill a room.

This product is available in both dome & pyramid styles, Polycarbonate tints are also available to offer privacy, reduce glare, and also to restrict light transmission.

This kerb is one of the most secure UPVC products on the market and this range offers a sleek modern design that is part ‘L’ compliant.

Extruded from high-quality UPVC this range offers an integrated water management system to shed water to the outside of the rooflight. internally the white UPVC provides a clean, smart self-finish.

This product has a variety of ventilation options which include: hit & miss ventilation to two or four sides, a worm gear mechanism, and a 230v chain actuator.

A data sheet for this product is available in the resources section of this site.

It is the buyer’s responsibility to ensure the rooflight size purchased is suitable for the intended installation, all rooflights are made to order and are non-returnable.

Additional information

Adapter Kerb Sizes

1120 x 1120, 1120 x 1420, 520 x 1020, 520 x 520, 520 x 820, 670 x 670, 670 x 970, 820 x 1020, 820 x 1420, 820 x 820, 920 x 1320, 920 x 920


Dome, Pyramid


Clear, Diffused, Opal, Bronze


Unvented, Hit & Miss vents 2 x sides, Hit & Miss vents 4 x sides, Worm Gear opener, 230v Powered Chain Actuator

Skins (Glazing Layers)

Double Skinned, Triple Skinned, Quadruple Skinned