I have a new built and I'm just finishing hanging the drywall, no plaster in any of the seams yet, drywall just screwed onto studs. Weather is colder now and with all the rain and thawing of snow my front yard (700 feet to the road) is filled with water and the gas company is waiting to run a gas line. The inside of the house is getting colder but not below freezing, will the cold damage the drywall I have already have hung on the ceilings and walls? Should I wait to finish hanging the rest of the drywall?

I’m currently renovating a 1920’s duplex that will serve as rental property. For drywall, I will not be doing the work myself and instead using a contractor. Drywall will replace dilapidated plaster, which has already been completely removed, mostly in the ceilings. The specifications will be 5/8 inch drywall with 1 5/8 inch screws. The contractor has said I can use shorter screws 1 3/4 inch but will go with the longer screws. These specs meet local code. Although the code does not require it, I am wondering if it’s a good idea to use "fire-code" drywall (called Type X) instead of regular drywall. I’m more focused on weight on the stud system of the old building rather than cost as a consideration. Looking forward to your feedback. If you have any other thoughts i.e. on thickness and length of screws, I would also appreciate them.