Natural wool installation

Tiny House Insulation: Efficiency vs. Health

For most of my design/planning process I have been pretty sold on using closed-cell spray foam insulation. Now I’m reconsidering, and wanting go with a more natural alternative if possible. Closed-cell Spray Foam Closed-cell spray foam costs more than most other types of insulation (and has to be installed by a professional – so doesn’t jive with a lot of tiny house builders’ DIY thinking), but it has so many benefits: Efficiency – highest R-value per square inch of any insulation material (approx R6-8/inch – great for use in the narrow 2×4 walls most tiny home builders use to maximize […]