Mono Pitched Roof Ventilation

Slating and tiling for pitched roofs and vertical cladding code of practice recommends that roof ventilation be provided in accordance with bs 5250.

Mono pitched roof ventilation. Mono pitched roofs are also known by the names of skillion roofs shed roofs pent roof and lean to roof. They differ considerably from the conventional gabled roofs in shape and construction. To provide ventilation opening points can usually be provided on the following areas of a pitched roof. 3944123 divisions of the building product design group.

Achieving calculated continuous and unimpeded airflow through the roof cavity is relatively straight forward. The ab20 form part of a passive ventilation system that works year round with no. Whilst it is possible to retrofit passive ventilation solutions to existing buildings it is highly recommended to incorporate passive ventilation during the design phase of any new building project. Figure 5 mono pitch roof next to be discussed will be flat roof construction.

Additional continuous 5mm ventilation at high level for roofs where pitch exceeds 35 or for roofs of any pitch with a span of more than 10m for lean to or mono pitch roofs. The vent apron vent is a polypropylene vent which enables warm air to escape from the lower roof void or through the barge detail of a mono pitch skillion roof. For mono pitched roofs cross ventilation should be in accordance with bs 5250 and have ventilation equivalent of a continuous high level 5mm slot in addition to eaves ventilation. While the gabled roof is always pitched in two directions the mono pitch always slants in a single direction.

Divisions of the building product design group. A placed on top of the purlins. Has an adhesive and flexible aluminium flashing which is designed to form to roofing profiles and prevent water ingress on any pitch roof. Through the design and installation of specific product combinations an unimpeded passive ventilation system is created for a skillion mono pitch roof any degree pitch the following product combinations are recommended.

To reduce moist air entering the roof space. Eaves soffits and fascias. Gaps should be sealed where services pass through the ceiling.