For the lower portion of the roof especially the part that overhangs the eaves and is susceptible to ice dams it is a good idea to apply self stick waterproof shingle underlayment wsu also called ice guard.
Nailing pattern for roofing felt.
Setting the roll and then nailing off.
Bitumen roof shingles may be one of the simplest roofing materials to install but nevertheless they also require specialized and exact rules on how to be fastened.
Unroll your felt onto a flat surface.
Drywall ceiling boards require 1 drywall screws every 6 8 while wall boards require drywall screws every 6 8 on the seams and 10 12 in the field.
Mark the same at the other end of the roll.
Scratch a line between the two marks to create a vertical guide for your cut.
Be aware that roofing felt should not be walked upon prior to nailing into position.
Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches apart before laying roof felt.
Nail the middle and bottom of the felt similarly.
Accurate nailing affects the performance of roofing shingles and it is also required by the international building.
The initial layer of felt should be installed to cover the bottom edge of the decking from edge to edge.
Starting a roof with tarpaper felt.
From behind the roll reach over and nail down the top of the strip with roofing nails spaced 6 to 8 inches apart.
Pull straighten and align the felt along the eaves.
Tab shingles need two nails on each side of the tab.
Be sure that there are no wrinkles.
Defer putting drip edge on angled gable ends until after the felt is laid so the metal.
It is important to apply roofing nails in the right quantity and location to securely lock a shingle into its place.
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.
Lightly scratch a vertical line on the surface with the rear of the blade to mark the length of your shed plus the front and rear overlaps.
Ideally the roof should be done when there is a forecast for several days without a lot of rain.
Proper safety equipment is recommended for all installations.
Shingles six roofing nails or staples per shingle.
Roofing felt should be installed from the bottom of the roof in horizontal layers to increase the water shedding ability of the felt.
Roof and wall sheathing 8 10d every 4 6 on the seams and 8 12 in the field.
The roof decking should be completely clean and dry.
Roll out the felt toward the other end of the roof.
Any stray roof tacks pieces of old felt or general debris should be cleared off.
This video walks through the very basic steps for installing tarpaper felt.