Xtralite and Vitral are now a part of VELUX Commercial, and we are delighted to welcome you to our new website. Here, you will find our complete portfolio of daylight solutions and services for industrial, commercial and public buildings.

Penthouse Louvre ventilation

Permanent ventilation solution for unheated spaces

Penthouse Louvres are non-insulated ventilation units designed to provide natural ventilation in unheated spaces such as above lift shafts in public and commercial buildings.

The units are custom made to bespoke sizing, designed to suit the specific roof opening and ventilation area required. They can be supplied with either a metal lid or polycarbonate glazed lid.

Penthouse Louvres are supplied white as standard but can be powder coated to any RAL colour.

Penthouse Louvre with solid metal lid in closed position.

Penthouse Louvres are designed for unheated spaces where permanent ventilation is required.

Penthouse Louvres are designed for unheated spaces where permanent ventilation is required.

Penthouse Louvres achieve high levels of natural ventilation.

Penthouse Louvre with polycarbonate dome glazing on a roof.

Penthouse Louvre ventilation performance chart

Penthouse Louvre ventilation performance chart