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Smoke Vent Roof Hatches: Supply, Install, Maintain, Repair & Service

We supply, install, maintain, repair and service smoke vent roof hatches across the UK, covering Ventlux and all other makes.

What are smoke vent roof hatches?

A smoke vent roof hatch is a roof hatch that both opens automatically as an AOV and gives maintenance access to the roof.

Where they are used

Used on flat roofs above stairs in blocks of flats and commercial buildings.

Pros

• Two jobs in one unit
• Robust
• Insulated

Cons

• Higher cost
• Roof structure work

Standards and regulations

Smoke control components are covered by the BS EN 12101 series (for example EN 12101-2 for natural smoke and heat exhaust ventilators, EN 12101-3 for powered fans, EN 12101-6 for pressure differential systems, EN 12101-8 for smoke dampers, EN 12101-9 for control panels and EN 12101-10 for power supplies). Design follows Approved Document B (England), BS 9991 (residential) or BS 9999 (other buildings), with Scottish, Welsh and Northern Irish equivalents. Under the Regulatory Reform (Fire Safety) Order 2005 the responsible person must keep systems maintained.

Installation considerations

We check the upstand size, roof build-up, ladder access and free area.

Every installation starts with a free survey. We confirm the specification, give you a written quote, install and commission the system, and hand over with test records and instructions.

Maintenance of smoke vent roof hatches

Planned maintenance keeps smoke vent roof hatches safe and reliable and gives you records for insurers and inspections. We service Ventlux and all other makes: we check fixings, wear, power and battery backup, controls and safety devices, adjust and lubricate where needed, test operation end to end and leave a written report with any recommended actions.

Repairs

If your smoke vent roof hatches has stopped working, is noisy, is opening or closing on its own or is showing a fault, we fault-find on site and repair it, often on the first visit using parts from our shop. We repair systems we did not install and work on all common makes.

Servicing

Servicing intervals depend on use and risk; most sites have a service at least once a year, busy or safety-critical systems more often. We can set up a service contract with reminders so it is never missed. Installation, maintenance, repair and service prices are POA after a free survey and quote.

FAQs

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Where we work

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