Fascia Vent Strip DOS25 1.0m

DOS10 & DOS25 are over fascia ventilation strips. They are designed with a radiused leading edge to protect the felt and have integral large insect and vermin inhibitors. These products should be used in conjunction with insulation inhibitor trays to ensure a clear airway into the roof void. DOS10 provides 10,000mm² per metre of continuous ventilation. DOS25 provides 25,000mm² per metre of continuous ventilation.