Does Fiberglass Still Make Sense?
Maybe, but other types of insulation offer installation advantages that make them more reliable.
Synopsis: This article takes a close look at the various insulation choices (batts, blow-in, and spray) and discusses their pros, cons and costs. There is significant talk about air infiltration, the hazard it poses, and the best ways to insulate to avoid it.
Jim Remick gave up on those familiar rolls of fiberglass insulation years ago. The Portsmouth, N.H., insulation contractor has built three specialized trucks at $100,000 a pop to apply sprayed-in foam insulation, and he dabbles with blownin fiberglass and cellulose. In Remick’s opinion, batts are probably the least efficient thermal insulation a homeowner can choose. “We stay away from them,” he says. “We just don’t believe in the product.”
Representing roughly three-quarters of all residential insulation, fiberglass batts are easy to install, are good thermal insulators, don’t burn (although their facings do), and are widely available. They’re also relatively cheap, and nagging health questions are…