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.
The amount you leave here really depends on the geography and type of weather.
Although when valley fixing you will always require a side lap fastener in all laps at each support.
We have some useful tips for you about metal roofing installation.
We re going to install the offset cleat the length of the valley and have it set back 4 inches so that we keep our reveal so that ice snow and water can flow off the panel hit the flat of the valley pan and exit the roof.
Flashing should be installed in all of the valleys.
With a clean valley you can lay down some peel and stick roofing membrane.