Sheath A Concrete Wall Detail

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.

Sheath a concrete wall detail.

Over the years variations of this system have been developed. It consists of a concrete masonry cmu foundation wall with exterior insulation. Exterior wall on slab must be out on the edge. The sheathing offers some additional r value and it s a continuous insulation layer outside of the framing.

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 sheathing strengthens the wall system provides a nailing base for the siding and gives a layer of protection against outside elements. Exterior wall sheathing is either structural or non structural. A simple approach that works well is to add a spline of asphalt felt paper at outside corners that extends 6 in.

Beyond the corner boards. 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. Inside corners also benefit from a spline see illustration. 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.

This prevents water from leaking under the bottom of the wall to the inside of the building. The prescriptive designs specify requirements for wall bracing braced wall lines and braced wall panels. Sheathing typically plywood or osb. Nearly all homes have exterior shear walls.

Structural exterior wall sheathing ties framing studs together making the walls resistant to twisting and bending. View more benefits view less benefits zip system building enclosures are designed to streamline design and construction. Consider a wood shed floor treated lumber joists and plywood. 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. The asphalt felt paper should go over the sheathing wrap which should also wrap the corners at least 6 in.