Dive Brief:

• The Gypsum Association has released a document, GA-227-13, that suggests how contractors can prevent joint cracking in wide ceiling spans between framing members.
• The document, available electronically, explains the use of what it calls "resilient channels."
• The issue stems from the different rates of expansion and contraction that gypsum and wood have due to temperature and humidity changes.

Dive Insight:

If you're finishing spaces with wide ceiling runs and about 15 feet (or more) between framing members, you can see cracks appearing with large environmental changes, such as the seasons, but there is material that can handle the differences while preventing cracks.