Roofing shingles may be one of the easiest roofing materials to install, but they nevertheless require special and precise fastening rules. It is important to hold the shingles securely in place by using the right amount and in the right place for shingles. The exact setting of the nails affects the performance of the tile, which is also required by international building codes.
Straight Roofing Nails
Ring shank roofing nails are used for shingle fixing roof installations, waterproofing roofing, shingle, and sheet metal fixings. There are different types of roof nails available in different materials and sizes.
Roof Nails must have a minimum nominal bar diameter of 12-gauge, 2.67 mm, and a minimum head diameter of 9.5 mm. Roof nails must have rods serrated to the head, which will prevent nail cracks, tears, and roof leaks. Large nailhead and thick shank provide more hold. All nails must be corrosion-resistant. For example, it is galvanized in various ways with aluminum, copper, or stainless steel.
Nail Length
Roof nails must be long enough to penetrate the roofing material and penetrate 19mm through OSB, solid wood, plywood or plywood decking, or deck thickness, whichever is smaller. The number of shingles, the thickness of shingles, lining, and waterproofing (installed on eaves, sidewalls, valleys, etc.) should be considered in determining the length of the nail.
In some circumstances, it is acceptable to use less penetrating nails over open ceiling tiles if additional nails are used. This is common for garden houses, sheds, or open slabs where the cladding is 1820 mm thick. Check local building codes.
General Rules for Fastening
Proper fastening is essential for a good roof. To properly nail the shingles when installing:
- Use the right nail type, size, and grade as indicated in the instructions for use.
- Use anti-corrosion nails.
- Use the recommended number of nails per shingle.
- Install nails according to shingles specifications.
- Before nailing, align the shingles correctly, so the nail does not protrude.
- Evenly and evenly drive the nail to the shingle's surface.
- Do not smash the surface of the shingle with a nail head.
- Do not drive nails into knotholes or cracks in the roof deck.
- Repair faulty nails immediately.
- Always nail the shingles from one side to the other to keep the shingles flat on the roof.
- Follow directions for use for special nailing procedures for steep slopes, gale areas, and all special requirements.
- Comply with local building codes.
If the nail does not penetrate the floor properly and cannot be driven properly, remove the nail, seal the shingles hole with bitumen mastic, and place another nail next to it. Replace all shingles if necessary.
Incorrect installation of nails.
One of the most common defects of shingles is improper nail installation, (generally happens with 1-inch coil roofing nails). Different manufacturers of shingles provide specific instructions for fixing shingles, and they are all pretty much the same. Unfortunately, some roofers ignore these guidelines. That's why we want to highlight the two most common nail attachment defects: burnt nails and misplaced nails.
