Gypsum Association considered a problem of repair of two types of deformations of plasterboard boards
The Gypsum Association, a technology, advertising and information center for the gypsum industry in the United States, regularly provides the public with publications that reflect the technical progress of this industry, clarify technological and legal ambiguities, and answer popular questions from manufacturers.
This time, the association's experts considered two common types of deformation of drywall panels and the most effective ways to correct them. A separate publication is dedicated to each of them.
Deformation of the edge of plasterboard panels in the place of their connection (joint ridging) is a common problem that occurs during the operation of an already finished structure. Most often, the cause of deformation of panels at the joints are sharp fluctuations in temperature or humidity, causing compression. Another reason may be physical pressure due to a skewed structure. In both cases, panel repairs can be carried out only after the entire structure is stabilized and the existing deformation foci are eliminated. The Gypsum Association recommends that you wait until the full heating / cooling cycle has passed before choosing a repair tool.
Another popular problem of drywall structures is the deformation of fasteners, protruding screws or nails above the surface of the plate. In some cases, this malfunction may be the result of non-compliance with fastening technologies during the assembly of the structure. But more often, fasteners begin to protrude above the surface due to shrinkage of the lumber used in the structure. It occurs, as a rule, due to the initially high moisture content in wood. The problem can be aggravated by excessive depth of fasteners. If the protrusion was noticed during the finishing or decoration of the structure, then it is permissible to immediately eliminate them. If the protrusion occurs regularly every month or more during the heating season, then you should wait until the end of the season for repairs.
The main point of technology offered by the Gypsum Association to solve the presented problems is the careful fitting, grinding and processing of plate joints, as well as preliminary observation of the deformation state in natural cycles of temperature and humidity. Both publications are available for download on the website of the Gypsum Association.