Unroll the ventilator along the rafters along the full length of the eaves and along both sides of the building to create a cross flow ventilation action. Position centrally above the wall plate. This is the narrowest part of the roof where the roof insulation is most likely to constrict the airflow. Push the corrugations down over the top of the rafters and secure using clout nails or staples.
Satisfies all NHBC requirements. Manufactured to BS EN ISO 9001 and BS IN ISO 14001. Complies with all relevant Building Regulations. Meets all relevant British Standards.