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.
                                
                                            -  Eaves level continuous ventilation
 
                                            -  Large insect and vermin inhibitor 
 
                                            -  500mm and 1m lengths available