Altena has steel halls, ventilation runs and load-bearing structures that must keep their function under fire. We install, renovate, document audit-ready.
Unlike fire doors or seals, claddings don't form compartments — they preserve components. The steel beam, the duct, the timber stays geometrically stable under fire for the defined duration. In Altena, this matters most in public buildings where a beam collapse means a section collapse.
What we install in Altena depends on the structure, appearance and construction phase.
Lift shafts or service shafts — F90 outside, F30 inside, per concept in Altena. Documented in the property log in Altena.
Sprayable, for large-area load-bearing structures in industrial halls where appearance is secondary. Specified per approval in Altena.
Board cladding with Promatect or Knauf — three-sided or four-sided box around the beam.
Intumescent coating — for visible steelwork, where boards would interfere visually.
Promatect-L or equivalent — fully enclosing the duct, per approval, in Altena industrial settings. Documented in the property log in Altena.
F30/F60 cladding for existing ceilings — for top-ups, renovation, stock protection in Altena.
EI ratings for claddings — parallel to DIN, EU-recognised.
F30/F90/F120 classification — the foundation, building-authority recognised, in stock and new build.
Every cladding with approval and conformity declaration.
Governs cladding of cable routes — alongside penetration plans, in stock documentation, in new build.
Heavily dependent on component and area — fixed price after survey.
Fixed offer after survey in Altena.
For special-use buildings, in maintenance plans, at renovation completion — yes. Documentation in Altena provided.
Survey in Altena → board order → install. Documentation audit-ready.
