Proper nailing is essential to the performance of roof shingles

Bitumen 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. It is important to apply roofing nails in the right quantity and location to securely lock a shingle into its place.

General fastening rules:

• Use the correct type, size and grade of nail as is specified in the application instruction.

• Use corrosion resistant nails.
• Use the recommended number of nails per shingle.
• Position the nails according to the shingle specifications.
• Align the shingles properly before nailing to avoid exposing nails in the course below.
• Drive the nails straight and flat with the shingle surface.

• Do not break the shingle surface with the nail head.
• Do not drive nails into knotholes or cracks in the roof deck.
• Repair incorrect nailing immediately.
• Always nail the shingle from one side to the other, so the shingle stays flat on the roof.
• Follow the application instructions concerning special nailing procedures for steep slopes, high wind areas, and any special requirements.