Natural Insulation that Loves Tight Spaces
Sheep’s wool naturally regulates humidity, helping prevent condensation in snug wall cavities. Treated with safe salts for fire and pests, it’s quiet, cozy, and forgiving to install. Readers say their lofts feel less stuffy—have you tried wool? Tell us where it performed best.
Natural Insulation that Loves Tight Spaces
Cellulose uses recycled newsprint, borate-treated for fire and mold resistance. It fills irregular voids beautifully, offering strong sound and thermal performance. In small studios near busy streets, readers report quieter nights. Subscribe to get our blower-door checklist for tight, well-insulated envelopes.