THE R- VALUE VERSUS THE SPRAY FOAM INSULATOR

THE R- VALUE VERSUS THE SPRAY FOAM INSULATOR

Insulation of a house is very important. It helps to stop diseases and the discomfort of a house that keeps the same temperature with the outside world no matter what you do. It is very discouraging to try to warm yourself during the winter and find that it is impossible. What makes it impossible is the fact that your house walls have very many cracks that need to be covered so that air and heat do not get transferred in and out of your house continuously.

Important factor during insulation

Heat and air are very important factors that should be considered during insulation because if the air keeps getting into the house, it will never be warm. Again, if you have your gas or electricity on and still the house is not warm, it because the heat is passing through the wall to the outside world. This can be very costly for a house owner because the prices of electricity and gas keep rising again and again. Therefore, in order to get an energy bill that does not eat too much into your pocket, it is important that you get an insulation that favors you.

Spray foam insulator and the fibre glass

The most known insulators include spray foam insulator and the fibre glass.  In order to choose from them, there is always a need to measure something called the R-value. This value is got by getting to know which insulator does not allow the transfer of heat through it easily. The R-value though cannot be discussed without knowing the various methods through which heat is transmitted from one material to another.

There are three ways of heat transmission: conduction, convention and radiation.  Conduction is transfer of heat through touch or physical contact. The R-value measured against conduction will always be higher for the fiber glass than for the spray foam insulator. Spray foam insulator allows heat to pass through it by contact so the value will be very low. When you compare the spray foam insulator against convention, which is transfer of heat through air, it will have the highest R –value because the foam does not allow air to pass through it

This means that the fiber glass is more likely to allow air and more to pass through it than the foam can. This means that the R-value for the fiber is low, when the heat is being transferred through convection and radiation. Therefore, do not really use the R-value to choose between the insulators.

It is important that potential customer should note that the R-values are calculated in air tight conditions. These conditions are not ideal because the spray foam insulator will be outside the house and the prevailing environment will not be airtight; rather, it will be sometimes hot, cold and moist. The spray foam insulator has very many other benefits. It does not wear out fast and it sound proof.  Therefore, the R-values are quite misguiding and should not be taken too seriously when making the selection.

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spray foam insulation r value chart


For more information: http://goenergylink.com/residential/insulation

Required Tools:
Ruler or Measuring Tape

The majority of your house heat is lost through your attic insulation.

You will need to make sure that when you’re measuring you get all the way to the bottom of the attic insulation. It is okay if you have to dig a little to make sure you touch the bottom to measure r-value.

R-value is your resistence to heat. Per inch cellulose insulation has an R-Value of 3.7 and fiber glass has 2.6-2.8 R-value. It is recommended to have an R-value of 50 for your attic insulation.

One of the easiest and most effective ways to increase your comfort and lower your utilities bills is by adding attic insulation. The cost of adding attic insulation is often offset by local utility rebates.

For more information visit us at http://goenergylink.com/residential/insulation How To Measure Attic Insulation R-Value For “Attic Insulation”

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closed cell spray foam insulation r value


http://www.islandbasementsystems.com | 1-800-405-1605

Christian Schmidt, owner of Island Basement Systems, provides professional home improvement services, such as basement waterproofing, crawl space repair, and spray foam insulation upgrades to local homeowners throughout Victoria, British Columbia.

Having served thousands of homeowners throughout the Vancouver Island area, Schmidt and Island Basement Systems have helped transform wet and disastrous basement and crawl space environments into energy efficient and functional rooms since 2005!

In this video, Christian explains the differences between closed cell and open cell spray foam insulation and how they are used when insulating a crawl space. With his company providing both types of insulation materials for the home, Christian is very familiar with both types of spray foam insulation and suggests when each should be used.

Open cell spray foam insulation is a soft, expanding material that does a great job of both insulating and air sealing empty spaces. Open cell spray foam is usually less expensive than closed-cell spray foam and is considered a green option because it is water-blown, releasing fewer chemicals within the composition.

Closed cell foam expands into a compact, hard type of insulation, which besides, adding significant R-Value and air sealing to the home, also acts as a vapor barrier.

The decision between choosing closed cell spray foam and open cell spray foam for insulating a crawl space can be very difficult, that’s why a professional should be contacted. With many variables to consider, Island Basement Systems does the work for you, conducting a thorough evaluation of the crawl space, including measurements and analysis of water content in the wooden structure.

To have your crawl space properly insulated and permanently protected against mold and moisture, trust the experts at Island Basement Systems.

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icynene insulation r value


Having trouble keeping your house cool in the summer and warm in winter? Find out why that’s happening, and more importantly, how you can help resolve the issue by using Icynene spray foam in your home. Expands in cracks and crevices to form an air seal (air barrier) to help prevent condensation and air flow. More at http://www.icynene.com/homeowner

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icynene r value


Icynene open cell and closed cell spray foam insulation products are one-step performance materials which both insulate and air seal a building for the lifetime of the structure. They guaranteed to perform as specified for the life of the building.

Using Icynene products gives you healthier, quieter, more energy efficient homes and buildings:

Save energy — Air leaks can increase energy costs. Icynene spray foam insulation provides both r-value insulation and an air barrier to stop heat loss and cooling loss – to increase energy efficiency.
Fill cracks and gaps — Icynene spray foam insulation sticks to different building materials so it can be used in difficult-to-insulate applications.
Increase comfort — Air sealing helps to stop drafts so you have a more comfortable home or building.
Keep out pollutants and allergens — Icynene spray foam insulation forms an air seal that can keep them out and improve indoor air quality.
Reduce noise – Low density open cell spray foam helps flanking and airborne noise reduction.

www.ecohomeinsulation.co.uk
www.icynene.com

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