The parapet funnel of the DRAIN® series is a conventional parapet filters made of polyurethane.
The main advantages of using this type of:
Parapet funnels have a high resistance to temperature changes (long-term temperature resistance from -20 °C to 80 °C).
The insulation membranes of the funnels are selected in accordance with the roof coating and are laminated during production. Thus, it provides perfect tightness, forming an integrity with the roof covering.
We offer parapet funnels with 2 types of apron: