How do I fix popped screws on my deck in Riverview NB?

The correct fix for popped screws on a Riverview deck is to drive new, longer screws beside the old ones rather than trying to reset the original fasteners into the same holes. Screw popping is one of the most common deck maintenance issues in New Brunswick, driven directly by the province's aggressive freeze-thaw cycles. Riverview, sitting along the Petitcodiac River with its damp river valley climate, experiences these cycles intensely throughout the winter months, and the repeated expansion and contraction of the wood gradually backs fasteners out of their holes.

The mechanism behind screw popping is straightforward. When moisture in the deck lumber freezes, the wood expands. When it thaws, the wood contracts. Each cycle applies a small upward force on the screw shaft, and over dozens of cycles in a single New Brunswick winter, the screw works its way up millimetre by millimetre until the head is proud of the surface. Stepping on a popped screw head is a genuine injury risk, so this is a repair worth addressing promptly each spring.

To fix a popped screw, do not simply drive it back down into the same hole. The wood fibres around the original hole have been compressed and torn by the popping action, and the screw will have significantly reduced holding power in that degraded material. Instead, remove the popped screw completely using a drill with the appropriate driver bit. If the screw head is stripped or corroded, you may need locking pliers to back it out. Once removed, drive a new screw approximately 25 to 50 millimetres away from the old hole, making sure you are still hitting the joist below. The new screw should be longer than the original — if the original was a 65-millimetre deck screw, use a 75-millimetre replacement. The extra length provides more thread engagement in the joist, which resists future popping.

For the new fastener, choose a coated deck screw specifically designed for pressure-treated lumber. Standard zinc-plated screws corrode rapidly when in contact with the copper-based preservatives in modern pressure-treated wood, and corroded screws lose their holding power much faster. Look for screws labelled as ACQ-compatible or rated for treated lumber. A number 10 gauge screw with a star or Torx drive head is preferable to a Phillips head because it provides better torque transfer and is less prone to stripping during installation.

When driving the new screw, pre-drill a pilot hole through the deck board if the lumber is old and dry. Seasoned pressure-treated lumber that has been in place for several years becomes surprisingly hard, and driving a screw without a pilot hole can split the board, especially near the ends. The pilot hole should be slightly smaller than the screw shaft diameter. Drive the screw until the head sits flush with the deck surface or very slightly below, but do not over-drive it. A screw head sunk too deep creates a pocket that collects water and accelerates rot around the fastener.

After fixing the popped screws, fill the old screw holes with an exterior wood filler or a small dab of polyurethane caulk to prevent water from channelling into the joist below. This small step makes a real difference in preventing moisture damage at those connection points.

If screws are popping across the entire deck rather than just in isolated spots, it may indicate that the original fasteners were too short, the wrong type, or that the lumber was installed at a very high moisture content and has since shrunk significantly. In that case, a systematic re-fastening of the entire deck surface with proper longer screws is worthwhile. This is still a minor repair in the $500 to $2,000 range and far less expensive than dealing with the board and joist damage that chronically loose fasteners cause over time.

---

Find a Deck Building Contractor

New Brunswick Decks connects you with experienced contractors through the https://newbrunswickconstructionnetwork.com:

• Duguay Construction ✓
• Worry No More Handyman Services ✓
• Hickory Dickory Decks Moncton ✓