How To Install Flashing On Metal Roof

Lay out your roofing underlayment over the fascia trim so that water that may form due to condensation does not collect underneath the drip edge.

How to install flashing on metal roof.

In order to do that we re going to use the end wall flashing as a guide. Installing the gable flashing and starting with the first panel. Next place your vent flashing on top of the membrane. Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.

The metal flashing must overlap the material not the other way around. But it doesn t work that way. However the principles are the s. Cut some membrane material to seal between the vent flashing and the roof and cut an opening for the vent.

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. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. The remaining siding on the sidewall will overlap the step flashing and nail.

Apply a thin bead of silicone around the opening of the vent pipe area and lay the membrane in place. Once even a small section of roofing cement fails you ll have a leak.