How to install a drip edge tar paper step 1.
Installing tar paper for metal roof.
To protect your home install a protective layer of tar paper also called roofing felt before placing tile metal slate or wood shingles.
Always begin working at the point with the longest peak to eave distance.
New polymer underlayments sheets are thinner and easier to work with than layers of tar paper and rosin paper.
Most codes and good roofing practice would require felt.
Add the metal panels.
Measure the size of your roof in square feet.
Multiply the width by the height for the.
Take care the first piece is aligned precisely perpendicular square to the edge.
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With metal roofing its also a good idea to put a layer of red rosin paper between the felt or ice water shield and the metal that way it wont potentialy stick to it and cause oil canning and would allow for expansion.
Some roofers prefer to attach felt underlayment with 1 inch roofing nails or special nails with plastic washers but most codes allow staples which are easier to drive.
Join lengths at corners where the roof changes direction by cutting the part of the drip edge that sits on the.
40x60 metal building do you put tar paper under metal roofing.
Measure the width and height of each section separately.
There is also another option for metal roofing underlayment.
Use a ladder to reach the bottom level of the roof.
Before applying roofing you ll need to cover the sheathing with roofing felt also often called tar paper most local codes call for using 30 pound felt.
Install the drip edge tightly against the edges of the plywood sub roofing so that it hangs down over the fascia.
If you re using an ice or water shield place this first and then install the tar paper.
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.
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Step 1 measure your roof s surface in square feet and purchase enough tar paper to cover the entire surface twice.