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11 Best Of What Do You Put Down Under Metal Roofing HD Image Size. Underlayment must also act as a secondary weather barrier in case the roof fails. Finish at the Ridge Line.
How far apart do you space furing strips when putting on a metal roof. This is by far the most common way to install a metal roof. Use your neoprene washer head screws to secure the metal to the sheathing.
Mar 08 2010 Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 34 in 19 cm.
The simple answer is yes your roof does need an underlayment. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Jan 10 2017 We recommend a polypropylene scrim reinforced underlayment made up of multiple layers. If your home is built with joists insulation between those joists and sheathing then an underlayment is needed before you put on a metal roof.