In northern climates ice or snow dams are another common.
How to do felt roofing.
Next find the center of the roof at the top and the eave then snap a vertical chalk line.
Continue pulling the felt tight.
Watch our step by step video showing how to felt a shed roof with expert advice and top tips to help you complete the job with confidence.
You can either measure the roof from the ground or by standing on a ladder and actually going.
Tack the felt onto the initial rolling spot using a tack gun.
How to install roofing felt prep work.
The felt keeps the roof deck dry before shingles go on protects against wind driven rain as shingles fail and increases fire resistance.
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.
Attaching your roof felt 1.
Paint a thin layer of adhesive over the first felt layer.
It s best to start nailing in the center and work out from there.
Return to the side that you began rolling from and.
Wind driven rain or snow can trap water under your shingles putting your roof deck and inner residence at risk of moisture.
Most pros use this line to begin shingling working left and right toward the rakes.
Ensure the felt remains even and straight as you work.
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.
It provides backup protection in the event of ice or water damage.
Why use roofing felt paper.
Start at the bottom of the roofline and work.
Ideally the roof should be done when there is a forecast for several days without a lot.
Using galvanised clout nails nail down the first layer of felt.
Start rolling the first layer of felt out from the bottom of one side of the roof.
You must remove any rotted pieces of wood on the roof and replace them with your plywood.