Lead slates chimney flashings back gutters apron and side flashings parapet box and tapered gutters 5 to 8 table 3 sizing guidelines to good practice recommended maximum sizes of individual pieces of lead for the following applications.
Slate roof flashing details.
Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water.
For example in metal roofing systems valleys are commonly fabricated with hems but can also be fabricated without them in which case they could still be used for metal roofing or any other type of roofing.
The apron joint with the base sheets is soldered horizontally and vertically.
The detail shows a typical open valley flashing for a shingle or slate roof.
Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.
Apron flashings these are standard lead flashings to a tiled roof or slate roof and consist of the 3 measurements as described above wherever a roof meets a wall.
These items can be fabricated in many different profiles.
The shingles or slate must lap the flashing at least 6.
Also pitched valley gutter linings bs en12588 uses maximum code no.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Two different cants are illustrated.
Base flashing for shingles can also be 16 oz but for slate or tile roofs 20 oz.