Sunday, December 31, 2017

For Spray Foam Insulation Long Island NY Is The Way To Go

By Margaret Stevens


Spray foam refers to a chemical product that results from the reaction of two other materials. The two materials reacted to make it are polyol resin and isocyanate. When there two materials react, they expand between 30 and 60 times after being sprayed in a place. Due to the expansion, this material has become a specialty parking material which forms to the shaping of the commodity being packed. It also offers high thermal insulating capability. When one needs to purchase Spray Foam Insulation Long Island NY should be given priority.

The invention of this insulation material occurred in 1937. Otto Bayer is the man credited with this great invention, following experimentations with various chemicals with the intention of creating a dry foam material. Later on, polyurethane started to be used to make cushions, shoe soles, and in industrial applications. In the 1940s, the aerospace industry adopted it while in 1979 it started to be used in the construction industry.

Spray foam insulation is a superior insulator in various areas because it has various specific qualities. It has a very high R-value which ranges from R-3.4 to R-6.7, the high R-value makes it suitable for homes and buildings usage. It also exists in a different densities and cell structure, it has the ability to block heat through all the three heat transfer ways.

SPF insulations exist in two major types. The two types are medium-density closed-cell and light-density open-cell SPF. Even though they may vary in composition, they are both thermoset cellular plastics that have millions of cells in their compositions. Another name used to refer to the medium-density variety is two pound foam. It has a rigid nature and has the ability to offer long term thermal resistance. The R-value of this material is in the range of 5.1 and 6 per inch.

When the medium-density SPF insulation is installed up to a thickness of 50 mm, it forms an effective barrier against both vapor and air. The color naturally comes in a yellow color. Most countries require installers of this material to be properly licensed and to have identification documents with them when working. Countries where the material is manufactured also impose standards on how the manufacturing process has to be done.

The light-density variety is also referred to as the half-pound foam. This material has a semi-rigid nature and an appearance that is sponge like. When the material is installed the sponge-like capability allows for expansion creating small open cells which fill with carbon (VI) Oxide gas. The expanding nature of the material makes it able for filling cracks, holes and crevices in surfaces and walls. It also produces air tight insulations and able to hold to irregular surfaces.

Manufacturers make this material with varying R-value. However, most manufacturers make the R-value to be 3.8 per inch. The half-pound SPF is not like its medium-density counterpart because it cannot form a barrier against vapor and steam. However, when installed to a thickness of over 5.5 inches, it can form a perfect barrier against air.

The light-density variety is usually used in buildings and interior walls of structures. They are able to block and absorb air leakage therefore reducing sound pollution. It is recommended for indoor use due to its nature.




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