Sheath A Concrete Wall Detail

Structural exterior wall sheathing ties framing studs together making the walls resistant to twisting and bending.

Sheath a concrete wall detail.

Consider a wood shed floor treated lumber joists and plywood. The asphalt felt paper should go over the sheathing wrap which should also wrap the corners at least 6 in. The prescriptive designs specify requirements for wall bracing braced wall lines and braced wall panels. View more benefits view less benefits zip system building enclosures are designed to streamline design and construction.

Sheathing typically plywood or osb. The irc and ibc provide prescriptive framed shear wall designs that may be incorporated into the building design to resist lateral loads. Inside corners also benefit from a spline see illustration. Exterior wall on slab must be out on the edge.

The walls are framed with 2x4s in most areas of the house. Nearly all homes have exterior shear walls. It consists of a concrete masonry cmu foundation wall with exterior insulation. Exterior wall sheathing is either structural or non structural.

Beyond the corner boards. 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. A simple approach that works well is to add a spline of asphalt felt paper at outside corners that extends 6 in. 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.

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. The sheathing offers some additional r value and it s a continuous insulation layer outside of the framing. This prevents water from leaking under the bottom of the wall to the inside of the building.

From a comfort standpoint here in climate zone 4 we think this will be a good tradeoff to using 2 6 walls that have a moderately higher r value but a bit more thermal bridging. Exterior wall sheathing strengthens the wall system provides a nailing base for the siding and gives a layer of protection against outside elements.