There are a few different types of insulation that can be used for ceilings. The most common type is fiberglass insulation, which comes in rolls or batts. It is usually installed between the joists in the attic. Another option is foam insulation, which comes in panels or spray foam. Spray foam is a good option for sealing cracks and crevices and it also provides thermal insulation. Polyurethane insulation is a type of foam insulation that is made from two different liquids that are mixed together and then sprayed onto the surface to be insulated. It is a good choice for insulating irregular surfaces, such as cathedral ceilings.

The best type of insulation for ceilings depends on a few factors, including the climate where you live and the type of roof you have. In general, fiberglass insulation is a good option for most people, but there are other types of insulation that may be a better fit for your specific situation. Talk to a professional contractor to find out what would work best for your home.