In most cases 4 nails are adequate.
Roof underlayment nailing pattern.
Check the nailing surface is level.
Ventilate the roof according to current building codes.
Wear safety glasses when nailing the plywood to protect your eyes from any debris.
One layer of felt underlayment high wind regions.
For example inch underlayment.
Each row of nails that are 24 on center should be approximately 12 from the outside edge of the roll.
One layer of felt underlayment all other regions.
Pick up packs of 3d ring shank nails.
If you so happen to have thicker underlayment 3 4 inch or more then use 4d ring shank nails.
Roofhelp has two ways of nailing the felt one for high wind regions and one for all other regions.
Try to create a random pattern with the nails so they will not appear in a regular pattern through the flooring.
Nail metal drip edge flashing which bends over the roof and down the edge of the facing board on all roof edges.
Cover sheathing with shingle underlayment felt.
These are 1 25 inches long and can be used for underlayment that ranges up to 1 2 thick.
Two layers of felt underlayment.
Position the nails appropriately according to the shingle installation instructions.
For duration series shingles owens corning recommends using either a 4 or 6 nail fastening pattern depending on the roof s slope and building code requirements.
Shingles six roofing nails or staples per shingle.
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.
Fasten drip edge on eaves with galvanized nails and a hammer about 12 inches.
Properly fasten panels including fastening and spacing hints step 4.
If you often experience winds of 50 mph or more you should seriously consider the high wind method of nailing.
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.
Roof and wall sheathing 8 10d every 4 6 on the seams and 8 12 in the field.
Install shingles according to manufacturer recommendations step 1.
Align shingles properly to avoid nail exposure.
Tab shingles need two nails on each side of the tab.
These are 1 5 inches long plenty long to drive through that over sized over thick underlayment.
The nailing schedule will vary with the thickness of the underlayment so refer to an underlayment nailing schedule chart to get the right schedule for your job.
