There are many different roofing materials, each with their own benefits. Some are more durable while others shed more water. Each also has a unique installation process. If the roof is comprised of some sort of shingle, it will require quality roofing nails in Atlanta. Here is what to look for before starting a roofing project. roofing nails offers excellent info on this.
The most common type of nails used for roofing are known as roofing nails and are used in conjunction with most shingles. These are typically made from stainless steel and aluminum to prevent rust and corrosion. The head of a roofing nail is quite large and wide. This gives the nail a larger surface to press the shingle to the sheathing. The nails are driven through the shingle and into the sheathing to hold them in place.
Roofing nails not only have a larger head than common nails, the shaft is different as well. The most common and least expensive option is a smooth shaft that installs easily. Larger shafts will grip the wood better and be more difficult to pull out. These work well in areas that commonly have thunderstorms during the year. Windy areas or areas prone to tornadoes require a nail that grips better so the shank is twisted like a screw. As the nail is driven into the roof, it twists into the wood making a more secure bond.
-How Long of a Nail
Roofing nails come in various lengths and the proper size depends on three factors. The first is how thick the shingles are. The second factor is how thick the underlayment is. Finally, the nail should extend an extra ⅜” to ½” through the sheathing. At this depth, the nail will begin to bend as it is pulled out, providing it more grip in the wood.
Some specialized nails take waterproofing to the next level. Galvanized nails are stainless steel nails that have been coated with zinc, giving them an extra layer of rust resistance. Galvanized nails that have been dipped in the zinc last a lot longer than ones that were plated. There are copper nails that prevent mildew and algae from growing on the head. Tar dipped nails have a layer of tar on them that is heated up by the friction created when driving them into the wood. This tar then seals the hole, preventing water from seeping through.