What are some of the pros and cons of different insulation types? Are there any that are considered generally better in all aspects?
There are many different types of insulation, from the common fiberglass batts to recycled cotton to spray-in foam, and each has its own advantages and disadvantages. The actual insulating value is measured in thermal resistance, or its R-value. The higher the R-value per inch, the better it insulates. However, how well your home is sealed from air leaks and how tightly the insulation fits in the walls or ceilings can also affect temperature and comfort. Health and environmental effects can also vary between different types.
