Installing A Metal Roof End Lap

As a first line of defense against water damage it is important that the metal roof overlap be implemented correctly.

Installing a metal roof end lap.

At this point chalk a line from ridge to eave. Follow manufacturer s instructions for the sealant application. You can use 1 inch nails for the installation of eave flashing. Use your neoprene washer head screws to secure the metal to the sheathing.

Synthetic metal roofing underlayment installation is no more complicated than if using traditional roof felt. Lay the panels on the ground the way you want them to be on the roof. For exposed fasteners avoid over tightening the fastener. 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.

4 apply a generous bead of waterproof roof caulk to both edges of every 6 inch wide. Install the roofing screws vertically along each rib in the panel. 20 minimum overlap of the roll end. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Lap allowance 1 5 12 pitch to 3 12 horizontal. You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened. Measure one panel width in from the roof edge. 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.

12 minimum overlap of the roll end. Place the leading edge of the first panel along this line. Tear the tape off at the start of the seam and begin taping again on the opposite side of the metal sheet. Because of this you should start at the lowest part of the slope and work upward.

Place the first screw. The eave flashing or edging is just the steel metal strips used to cover the entire perimeter of the roof. This helps to prevent water infiltration. How to lap metal roofing.

Install a corrugated roofing wall connector panel to a wall with roofing sealant when installing panels for a patio cover. The panels overlap allowing water to flow from one panel to the next without being able to penetrate the area under the roofing panel. This helps in setting up the lap of the panels. The installation of metal roofing involves placing large metal panels on the roof.

Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. Next you are ready to install the metal roof.