We are building a ranch with a walkout basement on the south side and “lookout” basement (ie basement with windows above grade) on the west side.

From the floor trusses up, the home is covered in Zip R6. The basement walls below the floor trusses are all poured concrete with a rolled on WRB “membrane”.

We plan to cover the exposed concrete walls with 2 inches of Insofast (EPS foam with built in furring strips) that will be flush with the Zip R above it.

Most of the Zip R nails were overdriven by 1/8 – 1/4 of an inch. We patched that with Zip’s liquid flashing, but I don’t trust their Zip tape job either.

Hardie board lap siding is what will be used. We are thinking of having the siding contractor install Hardiwrap (Hardie’s WRB) over both the Zip R and the Insofast before the siding is installed.

This will add an additional WRB that is on the same “plane” for water to go down as opposed to the Zip R being staggered with the membrane applied over the concrete that is covered by the Insofast foam. It also will address any deficienies in the zip tape installation.

Annual precipitation is about 30-32 inches where we are.

Apart from also adding furring strips for drying, does this seem like a good enough solution to address my concerns with the Zip install?