Good Building Score: 49

Recommendation: Nopal Favorite

These walls are beefy. While they require skill, attention and extra effort, the results are the gold standard.

A wood framed wall is filled with Blown-In Woodfiber Insulation and protected on the interior with a Vapor Variable Membrane. The exterior sheathing is air sealed with a Mid-Permeability Exterior Membrane before being covered in exterior Woodfiber Board Insulation. An exterior ventilated cavity turns cladding into UV protection while venting out built up heat and moisture.

Proper vapor drive in all seasons keeps walls dry and happy. High R-values and strategic amounts and gradients of thermal capacity work with extreme climates rather than against them.