When cellulose is contrasted with other types of insulation, it’s common to see one-for-one comparisons between cellulose vs.

That means must be treated with a flame retardant to be safe as insulation. Most products are also treated with boric acid to repel mold and pests. Cellulose is safer to install than fiberglass ...

If you’ve ever climbed up into your attic and wondered why it feels like the Sahara Desert in July—or Antarctica in January—there’s a good chance your insulation is either outdated or missing ...