Cellulose has an r value of 3 5 3 7 per inch where fiberglass has around 2 1 2 7 r per inch.
Blown cellulose insulation vs blown fiberglass insulation attic.
Sometimes loose fill insulation is referred to as blown in insulation because an installer literally blows it into your home with a special machine.
Fiberglass insulation blown in wall r3 7 r4 3.
Blown in insulation sometimes referred to as loose fill insulation is insulation literally blown in with a blowing machine.
In most situations we prefer the air and heat flow resistance of.
Loose fill or blown cellulose insulation is manufactured primarily from recycled newspapers a very benign product so it poses virtually no ongoing health risk.
Energy saver and attic systems we prefer blown in cellulose over blown in and fiberglass batts for several reasons.
So what are the advantages and disadvantages of each of these insulation materials.
Fiberglass insulation blown in attic r2 2 r4 3.
Fiberglass batt or roll insulation r3 2.
Blown in cellulose homeowner benefits.
Rather than trying to meticulously lay fiberglass insulation over the attic homeowners and builders can simply blow cellulose insulation throughout the attic.
There are two ways to get your insulation whether fiberglass or cellulose.
Cellulose retains more of its r value through a wider range of temperatures compared to fiberglass.
Batts or loose fill.
How are they similar and how are they different from blown fiberglass vs.
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The two main least expensive and most commonly used residential insulation materials is cellulose and fibreglass.
Higher r value per inch.
Fiberglass batts however are less expensive costing on average 0 30 to 0 40 a square foot for 6 inches of insulation.
When comparing blown in insulation both fiberglass and cellulose are nearly identical in price both costing around 0 70 to 0 80 per square foot for 6 inches of insulation.
Blown fiberglass on the other hand is made up of very fine strands of glass and these tiny fibers are a carcinogen that can easily be inhaled into your lungs.
Types of fiberglass and cellulose insulation.
The material can be either fiberglass or cellulose and consists of fiber foam or other materials in small particles and can even feel like down.
Blown cellulose is typically the preferred choice of insulation for attics.