Flat Roof Upstand Flashing

What typical detailing methods are used to seal flat roof penetrations.

Flat roof upstand flashing.

Completely pre assembled at the factory full size adhesive bond of the flashing collar on the upstand material thickness of the sealing layer. The requirement for flat roof upstands is set out in the british standard. How to terminate epdm membrane at an upstand wall end using quickseam formflash tape application. Sealing joins and making neat terminations is so easy with.

Which would include abutments rooflights. A horizontal gap of minimum 10mm is maintained between frame front edge and drainage channel. Ideally this should be 150mm or a minimum of 75mm again common sense and exposure applies. Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing.

Banding is typically used to seal soil vent pipes on single ply roofs such as fdt rhepanol pib and involves wrapping an unreinforced membrane around the pipe to a minimum height of 150mm. The waterproof membrane flashing extends fully below the door frame bottom rail and is sealed to it. Typical methods include banding pitch pockets and cover flashings. An approved sealant is then applied to the top of the membrane upstand before it is tied off with a jubilee clip.

Lead flashing maximum length. With this collar a tight and homogeneous flashing against the roofing membrane can be achieved far quicker than with manual flashing. The waterproof membrane extends 150mm height in the door reveal and roof abutment wall adjacent. The design of drainage falls should ensure that the continuity of the waterproof covering is maintained for a vertical height of 150mm above the finished roof level at all abutments door openings and parapets.

1 5 mm available in any. British standard bs 6229 2003 flat roofs with continuously supported coverings section 7 page 12 requires that.