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You can drywall an unheated garage because the material handles cold temperatures perfectly well. There are no risks or downsides to installing drywall in a garage that is not heated, and the material stands up to moisture and other elements quite well. Drywall will protect your unheated garage's electric wires and cables and add fire protection. However, for effective bonding, you should install drywall at a temperature of 55 degrees Fahrenheit or higher.

You should stagger drywall sheets to help prevent cracking. The joints between drywall sheets are the weak spots, so if you install drywall with seams aligned, you’ll create weak lines that run across the length of the wall and extend from floor to ceiling. But when you stagger drywall, the solid sections of panels will support the joints. This can prevent seams from cracking or separating due to fluctuating temperature and humidity, vibrations from movement inside the home, and gravity.

Metal corners, often referred to as corner beads for square corners, are used on drywall installations to provide structural reinforcement to vulnerable outside corners. Their usage safeguards against chipping, denting, or other forms of damage, enhancing the overall durability of the wall. Metal corners also offer a precise and straight edge that facilitates sharp and clean lines, crucial for achieving a polished and professional finish.

You can prevent air leaks and sagging by gluing a drywall ceiling. However, not every drywall job is a good fit for Sheetrock adhesive, and many pros say ceilings are one of those cases. When you place them properly, drywall screws make ceiling Sheetrock part of your home’s structural support system. 

Adding glue won’t increase the strength of the drywall, and it can make it much harder for you to remove and replace damaged drywall. Adhesive can bridge gaps, though, and it can keep temperature-controlled air from escaping or entering through the ceilings, making rooms more energy efficient.