Sheath A Concrete Wall Detail

The asphalt felt paper should go over the sheathing wrap which should also wrap the corners at least 6 in.

Sheath a concrete wall detail. It consists of a concrete masonry cmu foundation wall with exterior insulation. 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. 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. The sheathing offers some additional r value and it s a continuous insulation layer outside of the framing.

Zip system wall sheathing and tape has been rated 1 in quality every year since 2015 in builder magazine s annual brand use studies. Exterior wall sheathing is either structural or non structural. Beyond the corner boards. The prescriptive designs specify requirements for wall bracing braced wall lines and braced wall panels.

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. Nearly all homes have exterior shear walls. The irc and ibc provide prescriptive framed shear wall designs that may be incorporated into the building design to resist lateral loads.

This differs from figures 2 12 in that above grade wood frame wall is constructed of 2x6 framing which overhangs the foundation wall. Sheathing typically plywood or osb. 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. Over the years variations of this system have been developed.

Consider a wood shed floor treated lumber joists and plywood. 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. 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 on slab must be out on the edge. A simple approach that works well is to add a spline of asphalt felt paper at outside corners that extends 6 in.