universal design on the gunpowder: framing and foam-free
September 28, 2015
The construction for the addition and renovation to our Gunpowder project is moving along quickly. Because the under slab Roxul mineral wool was a little difficult to source and had a longer lead time, our contractor got creative and “pre-installed” the StegoWrap vapor barrier to wrap under the sill plate. We will go back and cut out the barrier to install slab insulation, tape back in the vapor barrier and pour the slab.
Framing is 2×6 walls with 3/4″ plywood sheathing, fully taped to provide our primary air barrier. We are then installing 1-1/2″ of Roxul mineral wool, Tyvek and then furring strips. This has been a terrific learning experience as we work with the contractor and project lead to find economical, smart ways to create a foam-free, well-sealed healthy envelope.