Technology and installation:
Double-skin ventilated roof systems have a ventilation gap between the roof profile and the insulation. To this end, the spacer construction must be selected to be significantly deeper than the insulation thickness.
The ventilation cross section depends on the roof pitch and the roof length and should be selected to be sufficiently large. Unhindered airflow from the eaves to the ridge should be ensured. To this end, care must be taken to ensure that there is sufficient air supply at the eaves and sufficient venting at the ridge.
The roof system is comprised of the following, from outside to inside:- Upper roof shell with trapezoidal profile
- Ventilation gap
- Housewrap
- Insulation and spacer construction with thermal separation
- Vapour barrier
- Supporting roof substructure made from trapezoidal profile
Overview Technology and installation
- Cold roof without insulation
- Single-skin top insulated roof system
- Double-skin insulated, non-ventilated roof system
- Double-skin insulated, ventilated roof system
- Wall structure without insulation
- Wall structure with insulation