Ray Williams and Daniel Morrison

Closed-cell spray foam in a two-part froth pack is a fast and effective way to eliminate thermal bridges and air leaks in building assemblies

Flashing, overlapping, and sealing layers keeps the outside out and the inside in

The Tyvek weather-resistive barrier can be a water barrier and an air barrier, but it is NOT a vapor barrier

Barriers, air gaps, continuous insulation, and redundancy give durability to a new crawlspace