Spray Foam Insulation
By: Serene Holland
- Sheep Wool-In recent years, scientist have taken the insulating properties of sheep's wool and applied them to home construction. A 24 inch roll of R-13 wool insulation cost around $60.
- Cotton- It is the scrap cotton denim that is left over when designers make a lot of jeans.Cotton insulation is very similar to fiberglass. It can be rolled into batts.
- Rigid Polystyrene- Even though it is a form of plastic, it is a great insulator with R-values that range from R-3.8 to R-4.4 per inch of thickness so it is considered green because is helps save so much energy.
Pictures of each!
How Will It Affect the Enviroment?
Cotton-Cotton is a natural and a renewable resource, which makes it one of the greenest insulation products on the planet.
Rigid Polystyrene- Even though rigid polystyrene is a type of plastic, it is a fabulous insulator and is considered green because it saves so much energy.