Chesapeake Roofers: Article About Roofing Nail Installation
Common nails are used for a variety of household construction needs, but roofing fasteners are probably the most numerous for any property. Each shingle must have between four and six nails to hold it securely to a home. As Chesapeake roofers repair or replace materials during an appointment, they must use specific installation strategies to ensure a quality project. Properly fastened nails can contribute to a rooftop that lasts 20 or 30 years.
Proper nail applications on the rooftop are typically accompanied by fasteners. Experienced contractors know that older nails must be pulled from the rooftop. They won't be in the best condition, and they are often bent. Brand new nails must be used for both repairs and replacement processes. These fasteners are common materials in any roofing contract, and their cost is negligible compared to the protection they provide a rooftop.
Nail placement is also another factor. The best fasteners won't work properly if they're added along shingle edges. During any moderate wind event, nails along edges will simply tear the materials. Several rooftop layers may be damaged when this installation error occurs, including the decking, underlayment and the shingle itself.
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All nails should be several inches away from the shingles' edges, which gives them enough material to hold fast during weather events.
The rooftop almost always has some slope or pitch to its design. This pitch allows water to flow consistently off the structure and into nearby gutter systems. When contractors must add nails and shingles to the home, the pitch may make installation difficult for inexperienced workers. Nails could be driven at unusual angles because of the roof's slope. They'll appear diagonal to the surface, for instance. Experienced contractors know how to angle their arms and wrists to drive the nails perpendicular to the surface.
Roofing nails cannot be too loose or excessively driven onto rooftops. A perfectly driven nail has its flat head firmly flush with the shingle. The nail isn't creating a divot in the shingle or hovering above it like an umbrella. All nails must have this flush appearance to achieve a leak free construction. Poorly driven nails will create frequent leaks into the home over the years.
Although most roofers use basic smooth roofing nails, some contractors prefer barbed shank designs. If a home is prone to high winds and other strong weather events, these barbed nails will hold tight to the surrounding materials. Contractors must examine a property and its normal weather patterns to determine the best roofing nails for the application.