VariVent® Twin

All systems shown here hold Euro patents 0982466 and 1388637.

VariVent® TC Twin

Essentially, this system can be viewed as a dual-function rolling variant.

With it, the insulation value can be improved by up to 60 % (when using 380 g/m² sheeting).

The VariVent® Twin is a variant of the single-rolling systems BFS, BCS, TFS and TCS.