The NAIMANorth American Insulation Manufacturers Association, a trade organization representing manufacturers of fiber glass and rock and slag wool insulation products in North America. "About Insulation" section is where you will find a wealth of information on fiber glassA material consisting of glass fibers used in making various products, including yarns, fabrics, insulation, and structural objects or parts. Fiber glass is resistant to heat and fire., rock woolA synthetic vitreous fiber insulation made by melting predominantly igneous rock and other inorganic materials, and then physically forming them melt into fibers. See Mineral Wool. and slag woolMan-made material made primarily from iron ore blast furnace slag. insulation products. Whether you are a contractor, inspector, engineer, architect, specifer, builder, or homeowner you will find helpful tools, valuable information, and "How To" guidance on the variety of fiber glass, rock wool and slag wool insulationMan-made material made primarily from iron ore blast furnace slag which is spun into a fibrous form. products used in the building and construction, manufacturing and energy efficiency industries. Start by selecting from one of the categories below, or simply use the site search function. If you do not find what you are looking for, contact us. We'll be happy to put you in touch with the insulation industry experts found within the NAIMA organization.