Economy 1 in x 2 in. Insulation mesh. A great replacement for insulation installers using wire batt supports or poly string. It doesn't rust or retain moisture and once installed. Will hold insulation in place in crawl spaces， basement ceilings， and garage ceilings. Cover with the drywall as per your codes for basements and garage ceilings. It is also used to hold insulation in place between walls until drywall is in place.

A great replacement for wire batt supports or poly string

It doesn't rust or retain moisture and once installed

provides easy access to structure for expansion or repair

Does not contain sufficient mass to promote flame spread or add fuel or toxicity to a fire