Slate Roof Flashing Details

3a flashings apron and cover.

Slate roof flashing details.

The apron joint with the base sheets is soldered horizontally and vertically. Flashing is installed to surround roof features such as vents chimneys and skylights. 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. These items can be fabricated in many different profiles.

The detail shows a typical open valley flashing for a shingle or slate roof. 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. The shingles or slate must lap the flashing at least 6. Whether for slate shingle or metal roofing valley flashing adds detail and helps to direct water.

The cant strip can also be constructed as shown in detail 9 5d. Apron and cap flashing should be of at least 16 oz. 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. Base flashing for shingles can also be 16 oz but for slate or tile roofs 20 oz.