Smoke-tight doors in accordance with the applicable proofs of usability prevent smoke spread in escape and rescue routes. Marked "-RS". Usually combined with T30 or T90 fire resistance. We advise, supply and install across NRW.
A smoke-tight assembly in accordance with the applicable proofs of usability holds back smoke for over 30 minutes at a 200 °C temperature test. Classification "SAa" or combined as "T30-RS" / "T90-RS". Smoke seals are mandatory in necessary corridors, stairwells and escape routes per state building code — wherever smoke would make an escape route impassable. Typical: circumferential seals, threshold seal, tested closing system.
Which variant fits depends on the installation context, the existing building and the fire-protection concept — we advise per project.
No fire resistance — smoke-tight only. Rare, mostly basements or low fire load.
Most common combination. 30-min resistance + smoke-tight. Standard in flats, offices, hotels.
For high-rises and firewalls with smoke-seal requirement.
Frame replacement in existing buildings — when the leaf remains.
All prices excl. VAT. Maintenance contracts are quoted on a per-unit basis.
We cover every typical building type — from residential to industrial complexes with hundreds of components per site.
Apartment buildings, stairwells, transitions to boiler rooms and underground garages — usually with smoke-protection properties.
Separation of production, storage and administration plus protection of mechanically loaded plant.
Schools, hospitals and administrative buildings under NRW special-buildings regulations — often combined with hold-open systems.
Requirements and test methods for smoke-tight doors.
European test standard — complements applicable proof of usability.
Sm (room-temperature) and Sa (warm-smoke at 200 °C).
Smoke-seal obligation in necessary corridors, stairwells, escape routes.
NRW-wide, exclusively with our own installers — no subcontractors.
Aachen to Bielefeld, Lower Rhine to Sauerland — survey usually within five working days.
No subcontractors. Warranty work and maintenance always trace back to the same people.
We schedule appointments proactively. Inspection record for the fire authority comes with every visit.
What does the fire-concept require? T30-RS or T90-RS? Escape-route relevance?
Installation per manufacturer certificate incl. threshold seal, functional check, smoke-cartridge leak test.
RS retrofit of an existing T30 via seals and new frame — often a cost-effective solution.
Check closers, seals, self-closing — with protocol.
We clarify building-code requirements, assess retrofit options and deliver installation-ready with leak protocol.
