For decades, fiberglass insulation was the material of choice to insulate homes. Blown fiberglass was often used for the attic and fiberglass batts were used for wall cavities, ceilings, and pretty much everything else. But fiberglass only has an R-Value of 3-3.5 per inch. This will not stop air movement and does not work when wet. When you insulate with Spray Foam Insulation not only does it have the highest R-Value of 6.9 per inch (with Closed Cell Spray Foam Insulation) and there are many other benefits that are not present with other types of insulation.
First it insulates. This is by far the best insulation you can get. This insulation will reduce your monthly heating bill by up to 30% and cooler temperatures are a fact of life with Spray Foam. In fact, the insulation has a Class II (extreme heat) rating. Class II insulation is what is used in commercial buildings and high-rise buildings. This insulation is not available for the consumer.
Next, you have the fact that Spray Foam has an R-Value. When you insulate with Spray Foam there is no need to use any other type of insulation. The most common failure with Spray Foam is a damp spot or a spot that is always damp. The R-Value of this insulation is R-3.5. This is so high that when a spot is installed it prevents the air from getting in. This insulates your home and prevents the air from getting in but also keeps the air out.
You will also find that Spray Foam insulates really well with a thermal resistance of 1.8. This means that it retains 1.8 degrees temperature change per inch. So a 15-inch cavity will have a thermal resistance of 15. This insulation will keep your home warm during winters and cool during summers.
You will find that this insulation is UV resistant. This insulation has a half-life of 500 hours. This means that it loses half its value every 500 hours. It will protect your house from fading by two types of ultraviolet light. UV-B light from the sun and UV-A light from the sun. It protects your house from fading and yellowing light that comes in through windows and sunroofs.
As you can see it does not matter what you use for insulation. It is all about what R-Value, thermal resistance, solar resistance, and sun protection you get. There is insulation for every need and for every home. You can insulate your house for winters and protect it for summers or use thermal-resistant insulation to keep your house cool during the summers and warm during the winters. There is insulation for every thought. If you think you need high thermal resistant insulation then go with Polyurethane. If you need a low thermal resistant insulation then go with Sprinter or Spray foam. You can use this type of insulation anyplace you want.
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