Framing An Attic Ceiling

When framing your ceiling if the ceiling joists are not going in the same direction as the roof rafters 2 by 4s are added running in the same direction as the rafters.

Framing an attic ceiling. Friction fit insulation between and parallel to the attic framing members. Collar ties are horizontal members that like rafter ties extend from rafter to rafter but. If you have attic trusses not conventional trusses the members will be sized to support living space. If you want your attic space to have a flat ceiling you ll need to add collar ties to the framing.

If you have a rafter framed attic the floor joists may or may not be large enough for living space and may need to be reinforced or replaced. The plywood will create a smooth strong ceiling without having to apply drywall tape and mud to the ceiling. Apart and attach the ends to the ends of the rafters. Most houses attics are built without flooring and are not designed to carry the heavy load of finished space.

Ensure insulation extends to the outside edge of the exterior top plates and to the peak of the cathedral ceiling. Space these boards 4 ft. The ceiling load may include items like drywall ducts recessed lights bathroom fans and attic insulation. However in some cases the joists are intentionally built strong enough for the homeowner to later build out the attic.

Ensure ends of insulation are butted together and flush to underside of framing. Nail the 2 by 4s to the top of each ceiling joist with 2 16d nails.