The short answer
What Causes Nail Pops
Nail pops happen because drywall is attached to wood studs that expand and contract with moisture. When the wood shrinks after drying, the nail loses its grip and the head pushes outward. Seasonal changes in humidity are a common trigger, especially in climates with humid summers and dry winters.
Water damage can also cause the framing to swell and then shrink as it dries. If a leak wets the studs behind your drywall, the wood may warp or pull away from the nails. That leaves the nail heads sticking out, sometimes cracking the joint compound around them.
How Water Damage Plays a Role
When water soaks into drywall and the wood behind it, the materials change size. As everything dries, the wood can shrink more than the drywall, which forces the nail heads outward. This is why nail pops often show up weeks after a leak or flood, even if the surface looked fine at first.
If you live in Rowlett, spring thunderstorms and hail can lead to roof leaks that drip down into walls. Those hidden leaks can wet the framing without you noticing right away. Look for small brown spots, soft spots, or new nail pops as clues that moisture may be behind the wall.
- Check for water stains near the popped nails
- Feel the drywall for soft or spongy areas
- Look for cracks in the joint tape or paint
- Use a moisture meter if you have one
- Check the attic or crawl space for leaks
- Note if the pops appeared after a recent storm
How to Fix a Popped Nail
For a single popped nail, you can often fix it yourself. Hammer the nail back in slightly, but do not just pound it flush, that can dimple the drywall. Instead, drive a new drywall screw about 2 inches above or below the popped nail to hold the panel firmly.
Then remove the old nail or set it below the surface with a nail set. Fill the holes with joint compound, sand smooth, and repaint. This works well when the framing is still solid and the drywall is not water damaged.
When to Call the Pros
If you have multiple nail pops across a wall, or if they keep coming back, the underlying issue may be structural. Water damage can rot the wood or cause it to bow, which no amount of hammering will fix. In that case, the drywall may need to be removed to inspect and repair the framing.
The pros can assess the extent of the moisture and determine if the wood is still sound. They can also check for hidden leaks that caused the problem in the first place. Their work usually involves removing damaged drywall, drying the structure, and then rehanging new panels.
- Multiple pops across a large area
- Pops that reappear after a fix
- Visible water stains or mold near the pops
- Drywall feels soft or crumbles when touched
- A recent leak or flood in the home
Preventing Future Nail Pops
The right way to prevent nail pops is to control moisture in your home. Keep indoor humidity between 30 and 50 percent using a dehumidifier if needed. Fix roof leaks and plumbing leaks quickly, and ensure your attic has proper ventilation to reduce moisture buildup.
If you are building or remodeling, ask your builder to use screws instead of nails for drywall. Screws hold better and are less likely to pop. Also, allow new lumber to acclimate to the indoor environment before it is enclosed.
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Call Now (214) 730-5993Frequently asked questions
Can I just hammer the nail back in?
Hammering alone usually does not work because the nail will pop again as the wood moves. The proper fix is to drive a new screw nearby to hold the drywall, then set the old nail below the surface. This keeps the panel secure.
Are nail pops a sign of structural problems?
Sometimes, but not always. A single pop is often just normal settling. Multiple pops, especially with water stains or soft drywall, can indicate moisture damage or framing issues. If you see those signs, have a professional inspect the area.
Should I fix nail pops before painting?
Yes. Nail pops will crack the paint and joint compound over time. Fixing them before painting ensures a smooth finish and prevents the problem from reappearing right after you paint. Use joint compound and sand it smooth first.