While creating your project, you can choose to place a ventilation grille in your Aliplast Imperial frame. The grilles are equipped with a self-regulating damper. It reacts automatically to varying pressure and is insect repellent. The ventilation grille can be supplied in different colours: clear anodised (F1), white (9010) or black (9005).

If you order an unglazed Aliplast Imperial frame with ventilation grille, we will supply the ventilation grille separately, including the rubber. You cannot place the ventilation grille on an intermediate sill (beam).