Flashing Shed Roof Addition

Two ways to flash roof edges.

Flashing shed roof addition.

Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Details concrete masonry roofing wrb flashing. Click to enlarge make sure the sheathing wrap overlaps all step flashings. All flashings must integrate with adjacent materials so water always flows to the exterior following the shingle principle.

One common method is to lay the edge metal under the eaves membrane and over the rake. Next the sheet siding for the addition was nailed directly to the studs to quickly enclose the space. Roof flashing is a material used as a protectant against water leaks or seepage and is typically made of galvanized metal but it can also be in the form of aluminum sheet metal copper or even plastic. Flashing is installed to surround roof features such as vents chimneys and skylights.

Flashing was added along that wall to keep the water out. More questonable or ugly roof wall flashing examples. Galvanized metal or aluminum is considered the best to use for roof flashing. Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration.

The new roof matched the slope of the shed roof but it tied in slightly lower on the wall to simplify the building process.