The causes of Fastener Popping and How to Repair it
01. Substrate movement - Popping can be attributed
to movement in the substrate. Timber substrates
are more prone to temperature or moisture induced
movement and shrinkage.
02. Incorrect fasteners - Overly long fasteners are one
potential contributing factor and therefore, it’s important to use the correct type and length fastener for
each specific lining system.
03. Framing not aligned - Improperly aligned, bent,
twisted or warped framing can result in popping (e.g.
nail plates or hold down ties not set flush with the
framing or loose attachment of the plasterboard to the
framing).
04. Incorrect installation - Improper fastening method
is another factor: Overdriven or skewed screws can
puncture the face paper which will result in a loose
head and a weak point for movement.
WILL POPPING REOCCOUR?
If timber has endured a full heating cycle the chances are that the timber may have reached its equilibrium moisture content and has stabilised. Seasonal fluctuations in moisture content are unlikely to cause future fastener pops.
REPAIRING
Popping that occurs after at least one season’s heating
cycle ( eg, Summer or Spring) is likely caused by the timber shrinking as it dries. Because further shrinkage is likely to occur and the chance of more popping reappearing, do not repair until the end of a full heating cycle.
— A screw should be reapplied 50mm from the popped fastener.
— Drive in a new fastener whilst applying firm pressure to ensure firm contact with framing.
— Remove any loose compound and paper as needed.
— Apply two coats of air drying compound, sand then redecorate
The GIB® Site Guide contains all the information you’ll need to help with installation.
