Flat Roof Abutment Ventilation Detail

Choosing the correct ventilation solution for a flat roof will play an integral role in extending a structure s lifespan.

Flat roof abutment ventilation detail.

It s unavoidable that the thermal temperature in the roof space will bear the brunt of the heat generated in the living spaces below. The abutment ventilation system provides a continuous unobtrusive weathertight air path from the roof void to the outside to comply with the requirements of the building regulations. An air ventilation path which complies with the current regulations is established at the flat roof intersection. The product is compatible for use with our horizontal intersection cavitrays which may be established at a higher level to permit the flashing to be dressed down to cover the external shell of the rav fl profile.

Fixed to the top of the facia board or timber upstand at the abutment to introduce air into the roof void. 4mm ventilation slots promote unrestricted air flow and prevent the entry of birds and. Where there is a parapet or an external wall abutment to the flat roof the fv250 ventilator can be used above a 150mm timber upstand battened off the wall by 25mm as shown below. This provides continual ventilation along the length of the roof between each joist.

Protect roofing underlay flat to pitched roof junction code 4 or 5 lead or aluflash. With traditional lead roll details on plain tile and slate roofs. Monovent at roof wall abutment to provide ventilation of 5000mm 2 m in accordance with building regulations. For roof pitches less than 15.

Flat roof and abutment ventilator. Fr250br rytons flat roof abutment ventilator 897mm l. Airtrak is a proprietary range of ventilators designed specifically for the ventilation of roof voids. A roofing solution built for the future aerodek is faster safer stronger and lighter than traditional roof coverings.

We stock products from glidevale and manthorpe including high level abutment vents abutment flash vents and monovent lead to roof ventilator. An air ventilation path which complies with the current regulations is established at the flat roof intersection. Airtrak assists specifiers builders and specialist contractors in helping them to meet the requirements of the building regulations in relation to the important issue of roof void ventilation and the control of condensation.