Drywall screws how long




















Screw pops are not usually a problem. Thousands of screw pops is a serious problem. But why? There are no two ways about it: a screw is either set right or it is set wrong A screw that is set too far out is obvious and cannot be concealed unless you build up the compound and create a bump.

This indicated that the drywall was not tight to the framing. But how? This is hard to believe, too. How I install drywall so that my screws do not pop Personally, I do not have a problem with screw pops, because, well, I am That Drywall Guy , and my screws do not pop.

Here's five tips: First, do not use too many screws. When fastening drywall to walls I attach the drywall with two fasteners every 16 inches in the field, and one every 16 inches on the edges.

Ceilings are fastened 12 inches on center. Work across the panel lengthwise. Start on one end, then fasten across the center, and then the far end.

This allows the screws to pull the drywall tight to the framing as the sheet is set. Control temperature, humidity, and airflow before, during and after the drywall work. Believe it or not, bringing the drywall in ahead of time to acclimate just like hardwood flooring can help reduce problems that often appear within 24 hours of first turning on the heat.

Whenever I do a moisture test on drywall, it is around 14 percent, so I try to have the framing less than that before I hang. Keeping the humidity as low as possible while taping will also help eliminate problems. Use drywall adhesive. This offers customers the best job possible. I did not start using adhesive because I was having problems. Do not screw into the top plate. Fasten walls about seven inches below the top plate. On the rare occasions that I have had screw pop problems, they were concentrated along the top plate.

If you have screw pops that you need to repair: Tighten the screw with a screwdriver or add another screw next to the one that popped. So what caused the thousands of screw pops? More info from the crowd: Since first writing about this, I have gotten a lot of comments, questions, and potential perps.

Eric, a drywall contractor in Michigan says this: "Wood breathes, and glue shrinks. I also found some information about a recent rash of screw pops on USG's website: In the last two to three years, USG has received a significant number of fastener-related drywall installation complaints in the Mid-Atlantic region Virginia, Maryland, Pennsylvania, New Jersey and New York.

USG summarized the commonalities of the cases: All residential wood-frame construction. All drywall contractors used standard drywall screws. All drywall contractors used low-VOC water-based drywall adhesive.

This adhesive was primarily used in the field of the panel and not at the taper or butt joints. The drywall screw buttons only occurred in the field of the panels. Some similarities to the case in question, and some differences, too—most of my friend's problems concentrated at edges. Even the slightest pressure off-center will tip them over.

Though less common than drywall screws, nails are still a useful method for installing drywall. Drywall nails are unique to other nails in the construction of their cupped head and thin post, or shank. The head of drywall screws is large and flat with a slightly cupped top. The flat large head serves to hold pressure against the drywall paper while not perforating the surface.

The thin, straight shank allows the nail to drive through the drywall and into the wood below while not cracking the drywall as it penetrates. Unlike wood framing nails that get holding power from both shank friction and head pressure, drywall nails holding power comes mainly from the pressure of the head against the paper. Friction from the shank against the gypsum does little to secure the board. Most sources recommend spacing nails no more than 7 inches apart.

When using screws, fasteners can be spaced 12 inches apart. In practical terms this translates to about nails or 5 screws on each stud when hanging 48 inch sheets perpendicular to the studs. Nails can be installed either one every 7 inches or 2 every 12 inches. Double nailing every 12 inches makes for an easier finish job. When determining fastener spacing whether using nails or screws, it is important to consult local building codes. Most municipalities have specific regulations governing the number of fasteners and their spacing.

Some even require the drywall hanging be inspected by a local building inspector before taping and finishing can begin. Over-driving them can lead to weakened joints. Nearly all drywall screws available are 6, the measure of the diameter of their threaded area, but their length varies depending on how you plan to use them.

They are used where multiple thicknesses of drywall are needed to achieve fire ratings, such as in multi-family homes and condos. Simply put, auto-feed screw systems.

Because they sense depth, Duraspin auto-feed systems also give you a perfect drive every time, for unmatched consistency. Meanwhile, under-driving screws adds extra time as you mud over those mistakes.

Depth of drive is critical, and auto-feed systems offer the most precise performance.



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