
Rooflight Ventilators
Have you ever wondered why some vents leak and others don’t?
Conservatory Roof Vents
Our GlazaTherm ventilator goes through a 12 step manufacturing process to ensure weather tightness and durability you can rely on again and again.
Manufactured from thermally broken aluminium using the proven polyamide technique for maximum thermal performance, GlazaTherm provides a cost effective way of ventilating both commercial buildings and conservatories. A range of factory fitted opening mechanisms are available for both manual and electric operation for both day to day and smoke ventilation in accordance with EN12101. The external fixed frame is made to suit the adjacent glazing thickness which is usually 24 or 28mm, so our opening vent is as easy to fit as a double glazed unit into most sloped curtain walling, patent glazing, rooflight and conservatory systems down to 15 degree pitch. Below 15 degrees, we offer a factory silicone glazed version guaranteed to remain water-tight to 5 degrees.
“GlazaTherm Vents have proved extremely reliable on several high end domestic rooflight & conservatory projects”
Alan West, MD, Trombe Ltd

FAQs
- Do I need ventilation?
Ventilation will enable you to control the environment of the building. Correct levels are ventilation are essential to provide air-circulation, refreshment and reduce condensation which can lead to unhealthy mould growth. A roof ventilator can provide additional ventilation if existing windows do not prove to be adequate.
- What controls are available to open and close the vents?
A range of opening mechanisms are available including manual pole operated spindles, electric motors operated by a simple rocker switch or thermostat, control panel and rain sensor. Remote control version also available.
- Is GlazaTherm suitable for smoke ventilation?
GlazaTherm has been tested and certified to EN12101 so may be used for ‘life saving’ smoke ventilation applications.
- What is the minimum pitch ventilators can be installed at?
We offer two options, one of which can be installed in pitches as low as 5° and still remain weather-tight.