Stairs into the ceiling
Kombo PP
Kombo PP flame-resistant loft ladders meet the strict requirements for low-energy passive homes
About the product
Stairs with sheet-metal sandwich cap built into the ceiling. Cap contains thermal and a flame-resistant insulation. The gap between the cap and frame is sealed with a flame-resistant foam strip. On the frame structure, a folding ladder is fastened to the cap. The whole stair space is closed from above by a thermally insulated cap. From the visible side, the lower cap is painted white and covered with protective film; the wooden parts of the upper cap are protected with a fungicidal solution, and the plywood used is water resistant.
Gallery / inspiration
Technical information
| Cap | sandwich – the wooden frame is provided with a fungicidal solution against mould and fungus, filled with insulation and is sheathed with galvanized sheet metal; the visible part is painted white and covered with a protective film |
| Thermal insulation | yes, U = 0.71 W / m2.K |
| Fire resistance | yes, EI1 30 / EI2 30 / EW 30 |
| Frame colour | RAL white |
| Step colour | RAL red + galvanization |
Manuals, certificates
Frame
- the frame is welded from rolled profiled sheet metal with Komaxit surface treatment (white)
Body of loft ladders
- steps – rolled profile welded with S-shaped sheet metal stampings with Komaxit surface treatment (black)
- joints – S-shaped galvanized sheet-metal stampings (yellow chromate)
Cap hinges
- stainless steel for lower cap, galvanized for upper cap
Fittings and fasteners
- made of high-strength material with galvanized surface
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