If you starve your roof of the correct ventilation then moisture will form in the way of condensation which can cause damp in you roof. To avoid this, ventilation has to be fitted. Building regulations changed in 1985 (approved document F2) and state that continuous ventilation at eaves level, dependent upon your roof type and pitch has to be installed.
Using a discrete but effective solution to the unsightly vents that you see in the majority of houses today.
The “Over Fascia Ventilation” system sits on top of the fascia and is hidden from the eye. This is fitted as standard to every fascia that we install.