Asphalt shingle manufacturers provide specific directions of how properly secure shingles so they appear beautifully uniform. However, these instructions can be difficult forexperienced roofers.
Read on to learn what improper shingle nailing can do to your asphalt roof.
Overdriven Nails
Most roofing professionals use pneumatic nail guns to secure shingles. The nails can get driven to the shingles too far if the pressure is set too high. The heads of the nails puncture through the mat of the shingle when the nails are overdriven.
This kind of application can void the manufacturer’s warranty. Shingle failure due to improper fastening isn’t covered by warranties. Your roof may need to be replaced before the end of its lifespan. Shingles will also be more likely to come loose and blow in sheets.
Using the Wrong Nails
A standard roofing nail has a barbed body and nominal shank diameter of 2.7 mm with a 9 mm diameter for the head. These nails must be corrosion-resistant and galvanized. Every shingle must be refixed with proper roofing nails if they were applied with staples.
Staples make the job easier and faster, but they aren’t the best way to fasten shingles. Stapled shingles are more likely to become loose or get blown off the roof. Staples tend to be driven at a wrong angle. They are usually improperly installed because the staple gun is handled at an awkward angle.
Improperly Located Nails
Nails placed too high on the shingle can cause your roofing system a lot of problems. The nail will catch the top edge of the shingle under it if it’s properly placed. However, nails located too high on the shingle will not catch the shingle below, cutting the number of nails driving into each shingle in half.
Improperly fastened shingles can slide and rip out of the nail holes. This error isn’t covered by the manufacturer’s warranty. Repairs or a replacement are necessary for roofing systems installed like this.
Ensure proper roof installation by hiring a reliable contractor like D&M Roofing. We are your leading provider of roof repairs, replacements and maintenance. Call us at (330) 968-0002 or complete our online form for a free estimate. We work with homeowners in Canton, OH.
