What is foam insulation?
Rigid foam insulation is a type of insulation that comes in pre -made panels. It can be used to insulate the roof, foundation or outer walls of the building. This type of insulation is a good choice for buildings with limited insulation space that still requires high thermal resistance.
The efficiency of the insulation is marked by the resistance value (R). R value is the ability to resist the flow of hot and cold air. The higher the R value, the greater the temperature protection. This value varies depending on the climate in which the insulation is installed.
Rigid foam insulation value ranges from R3 to R6.5. This is almost double the value of R credited with other types of insulation of the same thickness. On the outside of the building is installed solid foam insulation, thus increasing the total value of the structure.
wood is not a good insulator. Many modern houses are wooden frame structures and the insulation is frequency installed between the pins of the wooden frame. This means that according to anyThe experts are about 25 percent of the average house isolated only by wood.
After framing the house, but before adding any completion or siding, solid foam insulation can be applied to the outside of the house. It can also be used to cover outer roofs or foundations. The panels are located firmly side by side and held to the wall using glue or nails. It seems and the holes are then recorded to prevent air leakage. This forms a solid coat of insulation throughout the structure.
The rhow foam insulation depends on the material used to produce panels. It can be made of expanded polystyrene, extruded polystyrene or polyisocyanuration. The most commonly used is widespread polystyrene. It is least expensive, but also has the lowest R value. It also has no faces, so water -resistant toning.
The most expensive of the three polyisocyanurate insulation also has the highest value of R. Building crews begin TEcute foam they spray on the mat to form solid foam insulating panels. If the foil is used, the insulation can create a tight barrier for the house.
Extruded polystyrene panels are the middle range of solid foam insulation. Their costs and value R fall halfway between the other two varieties. These panels can be face to face or endless. In the front panels forms a barrier resistant to moisture for the house.