Metal Roofing Flashing Installation
The following steps will explain how to install metal flashing in roof valleys.
Metal roofing flashing installation. In order to do that we re going to use the end wall flashing as a guide. Other flashings include transition flashing end wall and sidewall flashings and valleys see diagram on right for application. Install flashing flashing is metal trim that fits over joints where two sections of roof meet. It helps direct water away from the meeting points and keeps the roofing dry.
Dealing with dips and making clean overlaps metal drip edge flashing is installed on the perimeter of a roof to direct water away from the fascia into the gutters and to keep wind blown rain videos roofing wrb flashing drip edge installation on an existing roof. Flashing should be installed in all of the valleys. Flashing is installed to surround roof features such as vents chimneys and skylights. Installation of sheet metal roofing panel over the gable flashing.
Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner. After our first metal panel is installed we use a system specific metal cap that goes around and enwraps the gable trim and the outer edge of the first metal panel which is what secures holds them together on the outer edge of the system as seen in the picture above. This drip edge flashing provides protection from water damage along the eaves and rake of a 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. Trim the most common flashing for metal roofing is the ridge cap which is used at the peak of a roof where two opposing roof slopes join. More product details close. There s no need to nail more than this and don t nail through the flashing into the shingle as this will introduce a potential leak to the roof.
Before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof. We ve cut our z trims and before we install them we need to know where to place them on the panel. I m going to take the end wall flashing put it in place and use a pencil or a sharpie to mark the tops of the ribs and the gable trim just so i know where to put those z s.