Flat Roof Abutment Ventilation Detail

Fixed to the top of the facia board or timber upstand at the abutment to introduce air into the roof void.

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. For roof pitches less than 15. Protect roofing underlay flat to pitched roof junction code 4 or 5 lead or aluflash. Hopefully this video will help explain the difference between cold flat roof construction and warm flat roof construction this videos show detailed drawings.

Flat roof and abutment ventilator. Choosing the correct ventilation solution for a flat roof will play an integral role in extending a structure s lifespan. Airtrak is a proprietary range of ventilators designed specifically for the ventilation of roof voids. We stock products from glidevale and manthorpe including high level abutment vents abutment flash vents and monovent lead to roof ventilator.

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. An air ventilation path which complies with the current regulations is established at the flat roof intersection. This provides continual ventilation along the length of the roof between each joist. 4mm ventilation slots promote unrestricted air flow and prevent the entry of birds and.

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. With traditional lead roll details on plain tile and slate roofs. 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.

Abutment ventilation our collection of flat roof abutment ventilation products provide you with everything you need to add ventilation to abutment roof details. 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. Fr250br rytons flat roof abutment ventilator 897mm l.