The Isotec fire rated loft ladder offers superb fire protection and thermal insulation. With up to 120 minutes fire resistance ( EI2120 ) and a heavy duty load rating it is an ideal loft ladder for commercial and industrial projects. In addition, high thermal insulation and an airtight seal make it a good choice for low carbon buildings. The Isotec also benefits from large treads (360 mm wide by 120 mm deep) for safety and comfort.
Key benefits at a glance
- High strength ladder
- Load capacity of 250 kg per step
- High energy efficiency of 0.33 W/m2K
- 30, 60, 90 or 120 minute fire protection
- Counter-balanced hatch and ladder operation
- Available with a seamless hatch door (Isotec Luxe)
- Available in standard sizes or made-to-measure with a range of options and accessories
- Folding steel loft ladder with white finish
- High strength, heavy duty loft ladder, with a load capacity of 250 kg per step
- Supplied assembled in a hatch box with insulated trapdoor
- Standard hatch box height of 420 mm
- Includes mounting accessories and instructions
- Available with a seamless trapdoor (Isotec Luxe)
- High energy efficiency (U-value of 0.33 W/m2K, calculated by TU Graz)
- Reducing loss of heat and lowering energy costs
- Class 4 air permeability certified (according to DIN EN 12114 by IFT Rosenheim)
- EI230, EI260, EI290 or EI2120 fire-protection (tested according to ÖNORM 3860, EN 1634-1, EN1363-1)
- EI260, EI290 and EI2120 fire ratings are achieved with an upper hatch.
- Fire protection is certified for apertures up to 1500 mm long x 800 mm wide.
- Available in standard hatch sizes for floor-to-ceiling heights between 2500 mm and 2750 mm
- Can be made-to-order to meet your exact dimensional requirements (see ‘Dimensions’ tab and technical drawing for details)
- Wide steps / treads with anti-slip profile for comfort and safety
- Step width of 360 mm
- Step depth of 120 mm
- Supplied ready to install with mounting accessories and instructions
Isotec Luxe EI230 fire rated loft ladder
- The Isotec Luxe features a special lower hatch that offers a seamless finish (shown below). It has a maximum fire rating of EI230.
- Please contact us for further details.
Isotec electrically operated fire rated loft ladder
- The Isotec fire rated loft ladder is available with electrical operation for ease of use and convenience.
- For standard size models.
- Click here for more information about the Isotec Electric.
Isotec fire rated loft ladder is available in the following standard sizes.
| Clear room height (mm) | Opening length x width (mm) | Case height (mm) |
| 2550 – 2650 | 1100 x 700 | 420 |
| 2500 – 2650 | 1200 x 600 | 420 |
| 2500 – 2650 | 1200 x 700 | 420 |
| 2550 – 2750 | 1300 x 700 | 420 |
| 2550 – 2750 | 1400 x 700 | 420 |
Available made-to-measure…
The Isotec can also be ordered made-to-measure:
Aperture length: 1000 mm – 1600 mm (Isotec Luxe 1400 mm max.)
Aperture width: 500 mm – 900 mm (Isotec Luxe 700 mm max.)
Floor to ceiling height: Up to max. 3400 mm
(Please note – Fire protection is certified for apertures up to 1500 mm long x 800 mm wide)
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 10-year parts warranty
- EI230, EI260, EI290 or EI2120 fire-protection (tested according to ÖNORM 3860, EN 1634-1, EN1363-1)
The Isotec fire resistant loft ladder is available as a BIM model/object from the NBS National BIM library in IFC and Revit format. Please click here for more detail and to download the object.
Accessories
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
£55 (excl. VAT)
Insulated upper cover
Please contact us for details (please note: upper hatch fitted as standard for EI260, EI290 and EI2120 models)
NBS Source
Technical specification for the Isotec fire rated loft ladder can be found on NBS Source.
