Proper use of high-tech posit bead ensures perfect off-angles.
The tray ceilings, once painted, would look great for several weeks—until small hairline cracks appeared on some of the off-angles. I realized this problem was due to shrinking lumber. Ceilings are framed with larger dimensional lumber, such as 2 by 8, 2 by 10 or 2 by 12. The larger the lumber used, the more severe the cracking was on any off-angles.