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Get the Right House Insulation for your Home

House insulation is a home improvement that doesn’t enjoy the same popularity as other improvements. Most home owners prefer to do something they can see, or that is more usable and appealing than home insulation. But, no matter how much use they get from a new deck, or how much they like being in a new kitchen, there are few improvements homeowners can make that match the benefits of house insulation.

Most homes could benefit from new or additional insulation. Many owners of new homes feel they have adequate house insulation because the house is new. The truth is that many homes, even brand new ones may not be as well insulated as their owners believe.

It all has to do with how home insulation is rated. Insulation is designed to stop heat transfer. In the case of house insulation, it will stop heat from leaving your home in the winter and, in the summer, it will stop heat from entering. Homeowners can judge how effective different types of insulation are at stopping heat transfer by checking the insulation’s R-value. Depending how well a particular house insulation stops heat transfer, it is given a different R-value. The higher the R-value, the better the insulation will stop heat transfer. So R-30 insulation stops more heat transfer than R-15. It looks like a simple way for homeowners to choose the best house insulation.

However, R-values can be deceptive because of how they are assigned. To determine its R-value, each type of home insulation is tested for how well it stops heat transfer. However, the testing is done under ideal controlled circumstances, a situation that is almost never met in a real home. For example, the most popular type of house insulation is pink fibreglass batt insulation. Batt insulation is designed to fit perfectly between the ceiling joists and wall studs of a home. Testing batt insulation for R-value does not take into consideration a number of real world factors. First, the wall studs and ceiling joists allow far more heat transfer than the insulation. So, while your home insulation is keeping heat from passing between joists and studs, nothing is stopping heat from passing through them. You may be getting R-30 insulation in the spots covered by the batts, but a much lower amount of insulation where the studs and joist run, resulting in an overall R-value that is less than R-30. You may have R-30 batt insulation, but you are not getting R-30 insulation in your home.

Two other factors that exist in the vast majority of homes also reduce the effective R-value of batt insulation. First, moisture, even very small amounts of it, affects batt insulation’s R-value. House ceilings and walls are commonly damp places, or at least have small leaks and, if they do, your fibreglass batt house insulation will not deliver the expected R-value.

The second factor is that homes are not built in perfect squares and rectangles. There are odd shaped spaces in ceilings and walls for which fibreglass batts are not designed. It means that gaps are often left between the batts and in spaces they can’t cover. Those gaps are like having an open window; heat passes through the gaps as if you had no home insulation.

Other types of house insulation are also affected by outside factors and are liable to not deliver the R-value for which they are rated. Like fibreglass batts, the R-value of loose cellulose fill insulation is reduced by the moisture that is common is walls and ceilings. Solid foam board insulation, while unaffected by moisture, leaves gaps in hard to reach spots or if it is not installed perfectly.

There is one commonly available house insulation that is not affected by moisture and seals every gap. As it is applied, spray foam insulation expands to fill every gap. Not only is spray foam insulation unaffected by moisture, it will actually spread to seal small gaps in your walls and ceiling and reduce the dampness in your home. Not only does spray foam insulation deliver the R-value for which it is rated, it actually insulates better than other common types of house insulation. One inch of spray foam insulation has the same R-value as two inches of fibre glass batts.

Air Seal Insulators specializes in spray foam house insulation.

This Article Was Written By: wsiarticles

Contact Air Seal today and starting getting full R-value from your house insulation toronto

Article Source: http://www.the-landscape-design-site.com/diy

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