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Guardian Fiberglass Insulation contains 30% post consumer glass and 5% post industrial recycled glass. When
installed properly, this insulation helps save money and energy resources and of course will allow your home
or building to be more temperature controlled throughout the years. This insulation meets Minnesota Insulation
Standards Program guidelines as well. Another advantage of Guardian Fiberglass Insulation when installed
properly is that it increases sound transmission class (STC) ratings.
Insulation is rated in terms of thermal resistance called R-value, which indicates the resistance to heat flow.
So, if the R-value number is higher, the greater the insulating effectiveness will be. Many factors will dictate
the R-value of the insulation including the type of material, its density and its thickness.
When purchasing insulation, be sure you know what the R-value should be for the area that you are insulating.
Also, when you compare insulation products, it is important that you are comparing equal R-values. At
Spring Lake Park Lumber Co. we can assist you in determining your needs.
Currently, Spring Lake Park Lumber Co. stocks R11, which is good for 2 x 4 construction and R19, which is good
for 2 x 6 construction and R38, which is generally used for attics. We are happy to special order any other
type of insulation that you may need.
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