Insulation materials come in various types, from bulky fibers like fiberglass and cellulose to rigid foam boards and reflective foils. Bulky materials slow down conductive and convective heat transfer, while foam boards trap air or gas to reduce heat flow. Reflective foils deflect radiant heat, making them ideal for warm climates. With so many insulation options available, the real question is: Which one works best and is the most cost-effective? Find out what Buildrite recommends for a cool, lo