Fiberglass is the most common insulation used in modern times. Because of how it is made, by effectively weaving fine strands of glass into an insulation material, fiberglass is able to minimize heat transfer. The main downside of fiberglass is the danger of handling it. Since fiberglass is made out of finely woven silicon, glass powder and tiny shards of glass are formed. These can cause damage to the eyes, lungs, and even skin if the proper safety equipment isn’t worn. Nevertheless, when the proper safety equipment is used, fiberglass installation can be performed without incident.
Fiberglass is an excellent non-flammable insulation material, with R-values ranging from R-2.9 to R-3.8 per inch. If you are seeking a cheap insulation this is definitely the way to go, though installing it requires safety precautions. Be sure to use eye protection, masks, and gloves when handling this product.
R-Value is the capacity of an insulating material’s resistance to heat flow. Basically, that means the higher the R-Value, the greater the insulating power of the material. While R-Value is something that is good to know, it’s not the revered determiner for all things insulation.
Reducing insulation to a number doesn’t tell the whole story, since heat flows in and out through radiation and convection. Heat loss through convection, or air flow, can account for nearly 40 percent of total energy loss in the home. This is an issue if you are only using R-Value to choose your insulation.
Fiberglass insulation has its own set of benefits and problems that you should consider before buying the material for your home.
Pros:
Relatively inexpensive.
Suited for standard stud and joist spacing that is relatively free from obstructions.
Can be a DIY insulation project.
Cons:
Small particles that come into contact with skin can lodge in pores, causing itchiness, rashes and irritation.
Still allows for air flow, which is a major source of high energy bills and uncomfortable room.
When inhaled, particles can cause coughing, nosebleeds, and other respiratory ailments.
When it is disturbed, fiberglass insulation releases particulates into the air which may be inhaled by those installing or removing it.
If a person must disturb the fiberglass insulation, they should wear gloves, long-sleeved shirts, pants, and goggles.
Fiberglass can trap allergens, dust, and moisture which can lead to mold growth.
