X-Penthouse

Permanent ventilation solution for unheated spaces

Flat gravel rooftop with square skylight window and distant landscape view.

Penthouse louvre with polycarbonate dome glazing on a roof for both daylight and ventilation

Key benefits

Customized sizingEach unit is engineered to your project’s exact ventilation area and roof opening dimensions.

Various lid optionsSolid metal lids for durability or polycarbonate glazed lids for light transmission.

Finish flexibilityWhite finish as standard with the option to powder coat to any RAL colour to align with your building’s aesthetic.

Permanent ventilationKeeping airflow constant without the need for mechanical aids in spaces that are not temperature controlled.

Cost-effective performanceCombining simple design with strong functionality and low maintenance in unheated environments.

Product details

Penthouse louvres are non-insulated, permanent ventilation units made to bespoke dimensions. They offer a solid or glazed lid, durable build, and aesthetic finish, designed for natural ventilation in unheated commercial or public buildings.

Suitable for:

unheated spaces such as above lift shafts, service cores or plant rooms where permanent ventilation is needed
new build or refurbishment projects that require reliable natural ventilation and custom sizing to match roof openings
architecturally sensitive buildings, where the finish and integration of accessories need to complement the design
metal or glazed roof constructions, with choices of solid metal or polycarbonate glazed lids to match materials and daylight requirements