Written by

03_13_13Dallas HVAC contractors can easily advise you on the best type of insulation for your home. Energy efficiency in your home can be dramatically improved by increasing the amount of insulation in your walls, attic and floors.

Two common choices are fiberglass and cellulose insulation. While both types can be effective, in many cases, fiberglass is the better choice.

  • Fiberglass maintains its insulating qualities better: Insulation stops heat from moving from place to place, keeping it inside in the winter and outside in the summer. The effectiveness of insulation is measured by its R-value, which indicates how well it resists heat flow. Cellulose insulation tends to settle after installation, which means it loses thickness and, as a consequence, loses R-value. Fiberglass insulation does not settle or thin out, which means it retains its R-value and insulating qualities.
  • Fiberglass is better for fire safety: Fiberglass insulation is made from spun glass, sand or other inorganic material that does not burn easily, making it a better choice for fire safety. Cellulose insulation is made from ground up newspaper. Though cellulose insulation is treated with fire retardants, the underlying material is flammable.
  • Fiberglass is water- and moisture-resistant: Fiberglass insulation can get wet or damp if exposed to moisture, but the material does not ordinarily absorb or hold water that reduces its insulating abilities. Cellulose, being made of paper, can easily absorb water and lose its ability to insulate.
  • Fiberglass is not attractive to mold and insects: The inorganic material of fiberglass insulation is not a food source for mold or insects, so there is little chance of bugs or mold in fiberglass. Cellulose is a common insect food source and can be attractive to hungry bugs or mold spores.

Crawford Services, Inc. is one of the Dallas HVAC contractors that customers can rely on to provide a full range of sales, maintenance and repair services that keep home heating and cooling systems running at their best and most efficient. Contact us today for more information on home insulation and for expert help deciding if fiberglass or cellulose insulation is the best choice for your project.

Our goal is to help educate our customers in North Texas about energy and home comfort issues (specific to HVAC systems).

Image courtesy of Shutterstock