Inspection Opening Closure

Meets the requirements of the Model High-Rise Directive (Germany)

Single leaf inspection opening closure



Universally applicable, smoke-tight inspection opening closure for installation in solid and GKF shaft walls. The single-leaf inspection closure is suitable as a large-format closure of inspection openings in fire-resistant installation shafts and thus offers the possibility of the best possible accessibility of technical installations. The requirements for inspection closures according to the Model High-Rise Building Directive with regard to fire resistance, smoke tightness and self-closing are fulfilled.

Product image PRIODOOR RTH

Internal overhead door closer


  • Fire resistance 30 or 90 minutes, fire-retardant/fireproof
  • Compliance with the maximum temperature increase in accordance with DIN 4102 Part 11 – 180 K
  • Smokeproof
  • Self-closing
  • Fire-tested from the inside and the outside
  • Non-combustible including the decorative surface A2 – s1, d0
  • Sound reduction index depending on size up to 37 dB


  • Single-leaf inspection hatch cover
  • With internal overhead door closer in accordance with additional requirements from the Model High-Rise Building Guideline
  • Angle of opening up to 120°
  • Flush-mounted profile half-cylinder – lockable from the outside
  • Stainless steel piano hinge
  • Right-hinged DIN door
  • Wraparound block frame


Material characteristic

  • Non-combustible board with surface coating, classification A2 – s1, d0
  • Standard surface is laminate
  • Standard colour is light grey – similar to RAL 7035, edges and chamfers in contrasting darker colour

Scope of delivery

  • PRIODOOR RTH in kit form
  • Black wrist strap


  • Flush mounting
  • Central installation
  • Flush installation in solid walls
  • Installation in solid walls
  • Installation in GKF shaft walls
  • Installation flush with floor or raised
  • Ready for installation ex works
  • Pre-assembly (max. 20 mm) to create a uniform plaster surface

Assembly details

File name
Data sheet PRIODOOR RTH .pdf
Brochure Inspection opening Closure PRIODOOR RTH .pdf
Tender text PRIODOOR RTH – 30 minutes .pdf.doc
Tender text PRIODOOR RTH – 90 minutes .pdf.doc
Assembly instructions PRIODOOR RTH.pdf


  • Various PRIORIT surfaces
  • Priming film – can be painted on-site
  • Aluminium decor
  • Without overhead door closer
  • Mounting hardware
  • Automatic multipoint locking with panic function E