Hey guys, as the title says; has anyone tried cardboard as insulation?
According to this information cardboard has a pretty impressive R-value!
Phenolic rigid panel R-4–R-5
Urea-formaldehyde foam R-4–R-4.6
High-density fiberglass batts R-3.6–R-5
Extruded expanded polystyrene (XPS) low-density R-3.6–R-4.7
Icynene loose-fill (pour fill) R-4
Molded expanded polystyrene (EPS) high-density R-4.2
Home Foam R-3.9
Rice hulls R-3.0
Fiberglass batts R-3.1–R-4.3
Cotton batts (Blue Jean insulation) R-3.7
Molded expanded polystyrene (EPS) low-density R-3.85
Icynene spray R-3.6
Open-cell polyurethane spray foam R-3.6
Cardboard R-3–R-4
Rock and slag wool batts R-3–R-3.85
Cellulose loose-fill R-3–R-3.8
Cellulose wet-spray R-3–R-3.8
Rock and slag wool loose-fill R-2.5–R-3.7
Fiberglass loose-fill R-2.5–R-3.7
Polyethylene foam R-3
I was planning on building with wood, using cardboard in the frame cavities and sealing the inside and the outside of the frame with plastic sheeting before applying the interior and exterior siding. Do you think that would work well?
