Repair and reinforce a ceiling joist by ... If there is slight sagging, push up on the joist by wedging in a vertical board between the joist and the floor beneath. If your ceiling has drywall, place ...
If your ceiling drywall is sagging between joists, sometimes called “pillowing,” it’s probably on the top floor and attached ...
Sistering is the process of adding additional material to the sides of existing floor ... original joist. If this is not possible because of obstructions or other issues, the sister should extend a ...