That’s partly because 9 out of 10 homes in the U.S. are under-insulated, according to the Environmental Protection Agency (EPA), with older residences especially likely to need the extra care.

This is probably the most common type of insulation. It's available in rolls of foil-backed felt, rock, glass or mineral fibre. Straightforward to install yourself. Some brands use recycled glass or ...

Once you gather the necessary supplies, follow the steps provided in this guide to discover how to install insulation in ...