Since 1997, HomeTips has guided millions of homeowners with original, expert advice for DIY home improvement and repair. Founder Don Vandervort, a nationally recognized authority, has written more than 30 books and countless magazine articles, been a host on HGTV, and served as MSN's home improvement expert. MORE
Insulation retards heat movement from warmer to cooler surfaces or spaces. In winter, when warm room air exits through walls, rises up through the attic and roof,
and flows down through the floor, insulation blocks—or at least slows—its departure. And in the summer, when warm outdoor temperatures try to force their way into your air-conditioned rooms, insulation holds the heat at bay.
By slowing heat movement, insulation saves energy and also reduces drafts, making a house more comfortable. Several types of insulation are manufactured, including DIY-friendly batts and rolled “blankets” of fiberglass and rock wool; loose-fill granules, fibers, and cellulose that are poured or blown into attics and walls; and various forms of plastic foam.
In this section of HomeTips, you will learn about the various types of insulation, how they are rated, and the different methods of installing them.
