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Benefits to Using Spray Foam Insulation Instead of Standard Fiberglass

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By Edited Oct 4, 2016 0 0
Credit: www.envirofoaminsulation.com

Benefits to Using Spray Foam Insulation instead of Standard Fiberglass

When deciding to insulate your home, the choice ultimately comes down to choosing between spray foam insulation and the standard fiberglass.  What are the benefits to choosing spray foam over fiberglass?


Lower Heating / Cooling Bills and a Comfortable Indoor Environment

One of the main problems with fiberglass is that it does not air-seal.  The problem with this is that it leaves numerous small gaps, cracks and holes around your electrical outlets, plumbing and electric lines.  In actuality, there can be so many holes, when taken together it is like leaving a door open and inviting outside air to come right in. 

Using spray foam to fill all your gaps can drive down your energy costs by 30% and give your heater/air conditioner unit the break it deserves.  It fills every single nook, cranny, crevice, hole, crack, and gap, creating a perfect continuous air-tight seal every time.  This also improves indoor air-quality, keeping all dust and air pollution from entering your home, and keeping your air fresh and breathable.  Sealing those gaps has the added bonus of reducing external ambient noise, acting as a buffer, creating a comfortable living environment.

Give a Boost to the Environment

When you seal gaps and cracks around your house with polyurethane foam, you not only save energy and reduce your carbon footprint, you use a product made with renewable energy resources that replace the petroleum-based raw materials found in other foams. While some foam is toxic to animals and inadequate for outdoor use, polyurethane foam is safe for plants, fish and other wildlife.


Keep Pests Outdoors, Where They Belong

Another problem with the holes that are left open by typical fiberglass insulation is that pests and rodents can gain easier access to your home or business.  A spray foam will fill those gaps and bar those pests from gaining entry.  It also has no ingredients that attract insects or animals, so normally they will not attempt to chew through the foam.  This creates a perfect barrier for keeping pests outside where they belong.


Reduce Humidity and the Growth of Mold

When you have gaps and cracks around your house, humidity levels remain high.  This is what causes condensation and sometimes even lets frost develop on your windows.  Warm, moist air rises, and the moisture permeates your ceilings and attic.  This can cause mold growth that you may never see, but will ultimately cause wood rot and home damage, and possibly even health issues for allergy-sensitive family members.  By closing all the gaps, spray foam insulation maintains your home’s internal integrity by blocking humidity variances.



When choosing the right spray foam insulation, it is important to check the R-Value. The R-Value is a measurement of thermal resistance, and the higher the R-Value, the greater the ability to resist heat flow.  Closed cell foam has the highest R-Value, compared to all types of available insulation products.

The colder it gets outside, the less effective fiber insulations such as fiberglass are at keeping you warm, inside.  They are essentially compromised in cold weather, losing 11% of their labeled R-Value.  Closed cell foam has a “real world” R-Value which is not affected by external forces like temperature.  Studies have found that, whereas fiberglass insulation loses nearly half its R-Value with outside temperatures of -28°C, spray foam maintains its R-Value and is never compromised, maintaining its integrity.



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