A countersunk nail will rip the shingle and a nail that is not completely nailed down will eventually work its way out.
How to use roofing nails.
Roofing nails are used in roof installation to fasten shingles to install roofing felt for waterproofing and to attach roof tiles and sheet metal.
All roofing nails have wide flat heads and short shanks.
In most cases 4 nails are adequate.
The first nail should be positioned in the barrel.
Many roofers use pneumatic nail guns to nail down the shingles.
When the pressure is set too high the nails simply get driven into the shingles too far.
Use a chalkline or align it by eye to make sure it is straight then drive roofing nails every foot or so to fasten it to the sheathing.
Then close both doors.
Roofing nails are made of galvanized steel to protect them from the elements.
Use the correct roofing nail material size and grade as specified in the shingle installation instructions.
Apply drip edge to the eave.
There are different kinds of roofing nails made of different materials and in various sizes.
When installing roofing nails always make sure the nail is flush to the shingle.
Install the recommended number of nails per shingle.
Load the canister to load a roofing nailer s canister open the feeder door and the magazine door.
When the nails are overdriven the heads of the nails punch right through the mat of the shingle.
That is why it is important to use roofing nails when doing a roofing job.
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.