Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.
How to put 1x4s under metal roofing.
This type of underlayment is critical to a quality roof installation.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
It serves as a moisture barrier as well as a slip sheet.
If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch.
Take your first sheet of metal and place it on the roof so that it overhangs the edge at least 3 4 in 1 9 cm.
Installing wood stripping under a tin roof.
Space the screws about 12 in 30 cm apart down the entire piece of metal.
Most you see on homes and many commercial building is non structural metal roofing and needs to be on solid sheathing.
Use your neoprene washer head screws to secure the metal to the sheathing.
When hot roof construction is done a roof with no ventilation a breathable underlayment is recommended.
The roofing is manufactured in panels that.
Make sure the product is designed to be used under metal.
Take care the first piece is aligned precisely perpendicular square to the edge.
Metal roofing 101 diy steel roofing installation over shingles subscribe.
3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.
Place corner pieces where panels will meet bends at the edge of the roofing.
This is by far the most common way to install a metal roof.