Sheath A Concrete Wall Detail

Sheathing typically plywood or osb.

Sheath a concrete wall detail.

It consists of a concrete masonry cmu foundation wall with exterior insulation. Beyond the corner boards. The irc and ibc provide prescriptive framed shear wall designs that may be incorporated into the building design to resist lateral loads. A simple approach that works well is to add a spline of asphalt felt paper at outside corners that extends 6 in.

This differs from figures 2 12 in that above grade wood frame wall is constructed of 2x6 framing which overhangs the foundation wall. 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. This prevents water from leaking under the bottom of the wall to the inside of the building. The asphalt felt paper should go over the sheathing wrap which should also wrap the corners at least 6 in.

Exterior wall sheathing strengthens the wall system provides a nailing base for the siding and gives a layer of protection against outside elements. Consider a wood shed floor treated lumber joists and plywood. 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. Zip system wall sheathing and tape has been rated 1 in quality every year since 2015 in builder magazine s annual brand use studies.

The sheathing offers some additional r value and it s a continuous insulation layer outside of the framing. 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. Structural exterior wall sheathing ties framing studs together making the walls resistant to twisting and bending. The walls are framed with 2x4s in most areas of the house.

Exterior wall on slab must be out on the edge. 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. Exterior wall sheathing is either structural or non structural. Nearly all homes have exterior shear walls.

The prescriptive designs specify requirements for wall bracing braced wall lines and braced wall panels. Inside corners also benefit from a spline see illustration.