When working in locations within 15 miles of salt water always use stainless steel type 316 nails.
Copper nails for cedar shingles.
Pressure treated wood often has preservatives on it which contain salt.
Copper clout nails are a rust free fixing used most commonly in roofing applications for fixing man made and natural slates.
In most applications only two nails are used per shingle in order to permit movement without splitting as the shingle expands and contracts during changes in its moisture level.
Working with cedar shingles isn t the same thing as working with regular wood.
Use the grip rite 11 x 1 1 4 in.
We also caution against the use of electro galvanized eg fasteners on any cedar shingle roofing project.
It is best to set aside the widest shingles or shakes for use in the valley to keep nails at least 12 inches from the valley centerline figure 2 52 shown above.
Type 316 stainless steel should be used in corrosive environments or when a pressure treatment or a fire retardant treatment has been applied to the wood.
Galvanized coated steel nails should also not be used during a cedar shake or shingle installation.
Nails for cedar shingles.
Our cedar shingle nails are slender and still to resist wood splitting.
Silicone bronze nails 45mm x 1 8mm cedar shingles 1kg.
Plain steel nails and copper nails can react adversely with the natural oils in cedar and can rust and disintegrate.
Wood shingle nailing pattern.
Copper is a popular flashing material with wood roofs.
Nails should be long enough to penetrate sheathing at least 3 4.
Do not use blued steel or copper fasteners with cedar shakes or cedar shingles.
Like all of the other types of wood cedar has to be treated the right way for the best benefits.
Since this is a science forum i have a few more comments in reaction to the replies.
Although the process may take longer than a simple steel nail the zinc in the galvanized coating will eventually rust and corrode exposing the steel underneath to the elements.
Keep nails about 3 4 to 1 1 is for the u b.
3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates.
3 use the grip rite 11 x 1 1 4 in.
There is galvanic action between all metals in contact with each other.
See link below for approximate quantities per kg.
Code away from the side edges of the shingles and 1 1 2 2 for ubc above the butt line of the following course.