Roof
roof pitch
Drempel
Flat roof
Upper floor slab
Solid ceiling
timber-beamed ceiling
Nail binder
Attic conversion
External wall
Façade
Partition joint in a house
cellar wall
Ground floor
cellar ceiling
Stairway to the cellar
Solid ceiling
Cap ceiling
Timber joist floor/cavity
Special components
In urban areas, living space is in short supply and people often wish to convert basement rooms for residential use (or as guest rooms, home offices or similar). The headroom is often only around 2 metres. The floor below ground level is made of concrete and is not insulated. The aim is to keep one’s feet warm. A thick floor structure is not possible, as this would mean that a comfortable headroom could no longer be guaranteed.
A protective fleece is laid on the concrete floor. Vacuum insulation panels 20 mm thick are then installed on top of this. These must be ordered from the manufacturer to ensure a precise fit. A laying plan must be drawn up for this purpose.
The vacuum insulation panels are laid out on the floor with as few joints as possible. Narrow gaps can be filled with Spaceloft mats. The vacuum insulation panels are covered with a protective fleece, and 15 mm thick OSB boards (with tongue and groove) are installed on top of this. Cork, carpet, linoleum or other floor coverings can then be laid as the final floor finish. The total installation height is < 40 mm.
If the cellar height permits, polyurethane boards (aluminium-laminated, WLS 022) with an insulation thickness of 40–60 mm may alternatively be used.
A 20 mm-thick vacuum insulation panel has the same insulating effect as, for example, 10 cm of polystyrene (WLS 035) or 60 mm of phenolic resin boards (WLS 021)