The Gypsum Association released updates to both GA-221 Repair of Joint Ridging and GA-222 Repairing Screw or Nail Pops standards publications. Each set of recommendations clarifies best practices associated with common wallboard repairs.
Joint ridging, or beading, is a uniform, fine linear deformation that occurs at the joints of finished and decorated gypsum panel products. Compression at the edges or ends of the panels due to extreme fluctuations of temperature and humidity is the most common cause of ridging; however, misaligned framing can also contribute to the problem. The Gypsum Association recommends waiting until a new structure has experienced at least one complete heating/cooling cycle before making repairs.
Fastener popping occurs most commonly from lumber shrinkage due to initially high moisture content in newly constructed wood framing. Overly long fastener length contributes to the problem. While fastener popping that appears before or during finishing and decoration should be repaired immediately; popping that occurs a month or more into the heating season should wait for repair until the season’s end.
In the case of fastener popping, the secure reattachment of the gypsum panel product to the framing is essential. All new screws or nails should be of the proper length. Key to the repair methods outlined in both GA-221-14 and GA-222-14 is careful sanding and treatment with joint compound as well as observing recommended drying times prior to redecoration.
Related Stories
Codes and Standards | Nov 26, 2019
Updated ASHRAE standards focused on ventilation design, air quality in residential applications
Standard 62.1 and 62.2 updates provide new tables of ventilation rates per unit area.
Codes and Standards | Nov 25, 2019
Real estate professionals say coworking is not a flash in the pan
More than 60% say coworking space is in their portfolios.
Codes and Standards | Nov 22, 2019
Utility’s proposal threatens California’s rooftop solar mandate
Would allow customers to use solar farms instead of installing their own PVs.
Codes and Standards | Nov 21, 2019
Number of LEED commercial building projects surpasses 100,000
More than 2.6 million sf of space being certified each day.
Codes and Standards | Nov 19, 2019
Most U.S. voters support licensing standards for architects
NCARB survey shows strong support for architecture as a licensed profession.
Codes and Standards | Nov 18, 2019
Cambridge, Mass., teams up with utility on energy retrofit program
Buildings large than 25,000 sf targeted in initiative to further carbon neutrality goal.
Codes and Standards | Nov 14, 2019
Resistance to Toronto’s ‘smart city’ reveals pitfalls of such ambitious projects
Concerns over data privacy, governance, feasibility prompt criticism.
Codes and Standards | Nov 13, 2019
Heat pumps, strategic energy management could be next major focuses for efficiency
After lighting, efficiency experts look to new opportunities to boost energy efficiency.
Codes and Standards | Nov 12, 2019
National Infrastructure Performance Council to address ‘national security crisis’
Coalition wants to double annual level of infrastructure investment.
Codes and Standards | Nov 11, 2019
Major cities are adopting new building performance standards
Initiatives can include multiple standards.