Acoustic Insulation Benefits
Low density Polyurethane Foam Insulation has excellent sound absorption properties and sound transmission properties. When comparing polyurethane foam to other insulations, there is a very noteworthy difference. As an effective air seal, it removes the air gaps through which sound travels easiest. Low density polyurethane foam Insulation is far greater in controlling mid-range frequencies that include the most common sounds, the the voice of people and stereo music.
Enhanced Insulation

When typical R3.5 fiberglass batts are field installed using traditional methods, the end product is an effective value of only R2.45. Much is lost in inexact fit, ineffective air barrier and broken vapour barrier. Polyurethane foam does not suffer from the same installation challenges of traditional woolbatts.
Greater Air Barrier Properties

Spray foam insulation is able to prevent air leaks much more efficiently than other types of insulation. Typical insulation materials like rigid foam board or fibreglass batts may go out of place over a period of time, leaving spots for air to penetrate the living area. Additionally, these products seldom fill the entire roof cavity, which means air can usually find a way into the living area between the sections of insulation, or at the top or bottom of the wall. Polyurethane spray foam fills the entire area, leaving far less gaps for air leaks. This material is also more dense than many other insulators, and provides a tight, impenetrable barrier to air infiltration and leaks.

Enhanced Energy Efficiency in the Home
Air barrier sealing and a increased under floor insulation material result in greater energy efficiency. This can mean a reduction in the use of heating or cooling systems, this can result in lower energy bills and fewer carbon emissions. A well insulated under floor may even allow you to choose smaller air conditioning and heating systems, which can save both money and space.

Roof Insulation never sags or breaks down
Polyurethane Foam insulation adheres to the surrounding substrates as it is sprayed on. This bond holds the foam in place for the life of the building ensuring its effectiveness lasts offering ongoing savings.

Costs
While polyurethane spray foam insulation is typically more expensive than typical batts or rigid insulators, the foams real cost may be much lower. Spray foam serves as insulator, vapor barrier, and moisture barrier, getting rid of the need for exterior caulking, building paper, and separate vapor barriers. Not only do you save the cost of these materials, but there is extra installation saving. Rather than buying and installing four or even more products, a single application of spray foam can be used instead. When the cost of spray foam is compared to the total cost of batts and related weatherproofing systems, foam actually appears to be the more affordable option. In addition, the higher R-value of foam means a greater reduction in energy bills is likely, this results in a shorter payback period for this project.

Flexibility
Because polyurethane foam expands to fill a space, it offers many benefits to people requiring a flexible roof insulation. It is particularly useful when filling oddly-shaped spaces, or areas subject to some type of obstruction. Spray foam also allows for smaller, thinner walls, which means greater flexibility with living space. Last of all, because foam insulation is so versatile, contractors have much more flexibility when it comes to framing designs. While rigid insulation requires adequate spacing between studs, polyurethane foam can simply be sprayed into any size opening. For more information on spray foam insulation contractors visit www.insulbarrier.com.au