Sheath A Concrete Wall Detail

Exterior wall sheathing is either structural or non structural.

Sheath a concrete wall detail.

The walls are framed with 2x4s in most areas of the house. Zip system wall sheathing and tape has been rated 1 in quality every year since 2015 in builder magazine s annual brand use studies. It consists of a concrete masonry cmu foundation wall with exterior insulation. The asphalt felt paper should go over the sheathing wrap which should also wrap the corners at least 6 in.

Beyond the corner boards. The sheathing offers some additional r value and it s a continuous insulation layer outside of the framing. The next piece above it should be allowed a 1 8 expansion joint ending at the top plate or at the midway point of the next rim joist. Over the years variations of this system have been developed.

Inside corners also benefit from a spline see illustration. Structural exterior wall sheathing ties framing studs together making the walls resistant to twisting and bending. An exterior wall must be placed on the outside edge of the slab so the exterior siding laps down and over the edge of the slab. Consider a wood shed floor treated lumber joists and plywood.

Exterior wall sheathing strengthens the wall system provides a nailing base for the siding and gives a layer of protection against outside elements. This prevents water from leaking under the bottom of the wall to the inside of the building. The irc and ibc provide prescriptive framed shear wall designs that may be incorporated into the building design to resist lateral loads. Nearly all homes have exterior shear walls.

This differs from figures 2 12 in that above grade wood frame wall is constructed of 2x6 framing which overhangs the foundation wall. For multi story buildings the sheathing on the bottom should extend down to the bottom of the lowest framing member extend to the halfway point on rim joist as shown in red. A simple approach that works well is to add a spline of asphalt felt paper at outside corners that extends 6 in. The dryvit system consisted of expanded polystyrene bead board attached adhesively to the sheathing and covered with a lamina composed of a modified cement base coat with woven glass fiber reinforcement and a textured colored finish coat.

Exterior wall on slab must be out on the edge. Sheathing typically plywood or osb.