Solid loft ladder - safe and watertight!

Attic stairs model Isostair

Not fire-retardant

Heat transfer coefficient in the lower cover: U = 0.28 W/m2K
(manufacturer's calculation)

Heat transfer coefficient with thermally insulated top cover: U = 0.21 W/m2K
(calculated by the manufacturer)

Airtightness class 4


    inquiry

    The advantages at a glance:

    • 39 cm hatch cladding, welded full miter frame as hatch cladding;
    • 12 cm rock wool insulation in the lower cover
    • 2 all-round high-quality sealing levels
    • Thermal brake in the staircase box
    • Spring-supported telescopic handrail 
    • Ball-bearing, spring-supported, wear-free closing mechanism
    • Dimpled treads with 36 cm width x 12 cm depth
    • High-quality plastic powder coating
    • Infinitely variable adjustment to the room height
    • recessed pivot hinges

    Extras:

    • Blower door set for airtight closure
    • Galvanized version available
    • Top cover (with or without insulation)
    • Special size hatch cladding
    • Protective railing on three sides
    • Contact switch e.g. for light
    • Electric drive optionally with radio remote control

    Isotec
    Available promptly in the following standard sizes:


    Hatch dimensions | external box dimensions (LxWxH) | standard room height with adjustment range


    140,0 x 70,0 cm | 136,7 x 66,4 x 42,0 cm | 255,0-275,0 cm | 3-part staircase package​​​​​​​
    130,0 x 70,0 cm | 126,7 x 66,4 x 42,0 cm | 255,0-275,0 cm | 3-part staircase package​​​​​​​
    120,0 x 70,0 cm | 119,0 x 66,4 x 42,0 cm | 250,0-265,0 cm | 3-part staircase package​​​​​​​
    120,0 x 60,0 cm | 119,0 x 58,1 x 42,0 cm | 250,0-265,0 cm | 3-part staircase package​​​​​​​
    110,0 x 70,0 cm | 106,7 x 66,4 x 42,0 cm | 250,0-265,0 cm | 4-part staircase package

    Special sizes are available on request!

    With their stepless adjustment to the room height, they allow you to use your attic comfortably and easily.

    A particular advantage of our attic stairs is that they can also be installed in the ceiling cladding.
    This means that the staircase can be placed in a suspended ceiling.

    The automatic or manual opening top cover can be retrofitted at any time and can be opened either to the side or to the rear in the manual version. It provides additional insulation as well as dust protection.

    Hatch cover 39 cm optionally also available higher!
    Ball-bearing locking system and internal swivel mechanism as well as a telescopic handrail enable smooth, user-friendly and safe operation of the loft access.
    The top step is located in the box and enables easy access to the loft.

    The Isostair lower cover is fitted with 10 cm thick rock wool insulation. The thermal insulation ensures that no heat is lost via the stairs and thus prevents unwanted energy losses. This allows you to improve the energy efficiency of your home and save on heating costs.

    Pre-assembled - no tedious assembly on site!
    Please follow the enclosed installation accessories and installation instructions!