Installing metal flashing for your roof project is a challenging but essential step to take to ensure that the new roof remains as weatherproof and as strong as possible the following steps will explain how to install metal flashing in roof valleys.
Installing metal roofing in valleys.
Although when valley fixing you will always require a side lap fastener in all laps at each support.
Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing.
Flashing should be installed in all of the valleys.
The amount you leave here really depends on the geography and type of weather.
With a clean valley you can lay down some peel and stick roofing membrane.
If you have any problems with roofing installation or need help with the technical aspects of laying your metal roofing.