Installing A Metal Roof End Lap

6 minimum overlap of the higher course over the lower course vertical.

Installing a metal roof end lap.

Tear the tape off at the start of the seam and begin taping again on the opposite side of the metal sheet. Follow manufacturer s instructions for the sealant application. Lap allowance 1 5 12 pitch to 3 12 horizontal. The installation of metal roofing involves placing large metal panels on the roof.

20 minimum overlap of the roll end. Install the roofing screws vertically along each rib in the panel. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof. Use your neoprene washer head screws to secure the metal to the sheathing.

Because of this you should start at the lowest part of the slope and work upward. As a first line of defense against water damage it is important that the metal roof overlap be implemented correctly. Measure one panel width in from the roof edge. This helps in setting up the lap of the panels.

You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened. 4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide. This helps to prevent water infiltration. For exposed fasteners avoid over tightening the fastener.

How to lap metal roofing. Place the first screw. Place the leading edge of the first panel along this line. At this point chalk a line from ridge to eave.

Lay the panels on the ground the way you want them to be on the roof. Install a corrugated roofing wall connector panel to a wall with roofing sealant when installing panels for a patio cover. Space the screws about 12 in 30 cm apart. The eave flashing or edging is just the steel metal strips used to cover the entire perimeter of the roof.

Synthetic metal roofing underlayment installation is no more complicated than if using traditional roof felt. A basic rule of thumb for installing metal roofing is that the piece of roofing higher up on the slope should always overlap the one below it. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. You can use 1 inch nails for the installation of eave flashing.

12 minimum overlap of the roll end. Next you are ready to install the metal roof.