Lay the panels on the ground the way you want them to be on the roof.
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.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.
Lap allowance 1 5 12 pitch to 3 12 horizontal.
Space the screws about 12 in 30 cm apart.
Panel installation should begin at the gable end of the roof opposite the prevailing rain bearing wind this will provide added assurance against wind driven rain being forced under the laps.
Install a corrugated roofing wall connector panel to a wall with roofing sealant when installing panels for a patio cover.
20 minimum overlap of the roll end.
The panels overlap allowing water to flow from one panel to the next without being able to penetrate the area under the roofing panel.
Place the first screw.
Follow manufacturer s instructions for the sealant application.
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.
Measure one panel width in from the roof edge.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Place the leading edge of the first panel along this line.
This helps in setting up the lap of the panels.
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.
For exposed fasteners avoid over tightening the fastener.
You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened.
12 minimum overlap of the roll end.
You can use 1 inch nails for the installation of eave flashing.
Next you are ready to install the metal roof.
How to lap metal roofing.
As a first line of defense against water damage it is important that the metal roof overlap be implemented correctly.
Synthetic metal roofing underlayment installation is no more complicated than if using traditional roof felt.
Use your neoprene washer head screws to secure the metal to the sheathing.
6 minimum overlap of the higher course over the lower course vertical.
Because of this you should start at the lowest part of the slope and work upward.
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.
At this point chalk a line from ridge to eave.
