Passivhaus loft ladder - Klimatec 160. Highly insulated and fire rated hatch box. High strength steel ladder.

Folding steel loft ladder Load rating of 250kg per tread Supplied with handrail as standard Available made-to-measure Thermally insulated. U value = 0.34W/m2K Highly insulated and Passivhaus certified by PHI Class 4 certified airtight seal EI30 Fire rated loft ladder. 30 minutes from below.

Klimatec 160 Passivhaus Loft Ladder

The Klimatec 160 loft ladder…

…passivhaus certified with fire protection

From £1,560 (excl. VAT)

Including delivery to any UK mainland address


Material: Steel
Operation: 3-part folding
Load capacity: 250kg per step
U-value: 0.34 W/m2K
Fire Rating: EI230

The Klimatec 160 offers the perfect solution for low carbon and passivhaus projects that require fire protection. It benefits from very high thermal insulation and is certified by the Passive House Institute for use in passive buildings. In addition, the folding steel ladder offers a very high load rating of 250 kg per tread. As a result, the Klimatec passivhaus loft ladder is suitable for both residential and commercial projects.


Key benefits at a glance

  • Certified passivhaus loft ladder
  • High strength ladder.
  • Load capacity of 250kg per step.
  • High energy efficiency of 0.34 W/m2K.
  • 30 minute (EI230) fire protection
  • Seamless hatch door with powder coat finish
  • Available in standard sizes or made-to-measure with a range of options and accessories.
  • Folding steel loft ladder with white powder coat finish
  • High strength, heavy duty loft ladder, with a load capacity of 250kg per step
  • Supplied assembled in a hatch box with insulated trapdoor
    • Trapdoor provides seamless finish when closed
    • Standard hatch box height of 480mm
    • Includes mounting accessories and instructions
  • High energy efficiency (U-value of 0.34 W/m2K, tested by the Passivhaus Institut Darmstadt according to certificate 0836as01)
    • Reducing loss of heat and lowering energy costs
  • Class 4 air permeability certified (according to EN12114 and EN 1026 by TU Graz)
  • 30 minute fire-protection (EI230 tested according to ÖNORM 3860, EN 1634-1, EN1363-1)
  • Available in standard hatch sizes for floor-to-ceiling heights between 2500mm and 2750mm
  • Can be made-to-order to meet your exact dimensional requirements
  • Wide steps / treads with anti-slip profile for comfort and safety
    • Step width of 360mm
    • Step depth of 120mm
  • Supplied ready to install with mounting accessories and instructions
  • Can be ordered with a secondary upper hatch for applications requiring particularly high levels of thermal insulation and to protect against dust.
The Klimatec 160 passivhaus loft ladder is available in the following standard sizes that can be ordered on line.

Clear room height (mm)

Opening length x width (mm) Case height (mm)

2500 – 2650

1200 x 600


2500 – 2650

1200 x 700


2500 – 2650

1300 x 700


2550 – 2750

1400 x 700


Available made-to-measure…

The Klimatec 160 can also be ordered made-to-measure:

Aperture length:  1000mm – 1400mm

Aperture width: 500mm – 700mm

Floor to ceiling height: Up to max. 3400mm

Please contact us to discuss your requirements and to arrange a quotation.

  • Manufactured to EN 14975
  • Supplied with a manufacturer’s 2-year full warranty and 4-year parts warranty
  • Certified by the Passive House Institute (Passivhaus Institut) as a passive house component
  • EI230 fire-protection (tested according to ÖNORM 3860, EN 1634-1, EN1363-1)

The Klimatec 160 Passivhaus loft ladder is available as a BIM model/object from the NBS National BIM library in IFC and Revit format…

Alternatively, please click here to view our full range of available BIM models.


The following accessories are only available for order with a loft ladder.  Please make sure to add the required accessories to your cart before checkout, or contact us directly to discuss your requirements.

Airtight sealing kit for outside of Wippro loft ladders

Airtight Sealing Kit

£80 (excl. VAT)

Upper cover for improved thermal insulation and protection from dust

Insulated upper cover

Please contact us for details


Klimatec 160 Passivhaus loft ladder – 7000303

Data Sheet

Klimatec 160 Data Sheet – DS-KLI

NBS Source

Technical specification and BIM object for the Klimatec 160 Passivhaus loft ladder can be found on NBS Source.

NBS Source Partner. Premier Loft Ladders products can be found on NBS Source