How Does Fiberglass Roof Insulation Work

How fiberglass insulation works.

How does fiberglass roof insulation work.

Insulation materials run the gamut from bulky fiber materials such as fiberglass rock and slag wool cellulose and natural fibers to rigid foam boards to sleek foils. Reflective insulation and fiberglass work differently and one type may be better than the other for specific needs though neither is inherently objectively better for roof insulation. 3 many companies don t own the expensive equipment insulation blowing machine and dedicated truck to perform the work so they promote rolled fiberglass. It is made by pulling strands of glass into thin fibers.

There are however a few dangers associated with the installation of fiberglass if you are considering installing fiberglass insulation in your home here are a few dangers to know before you get started. It is lightweight yet strong and since glass isn t a good conductor of heat it s a very effective insulation material. Also it comes in rigid boards and insulation made specifically for ductwork. Other varieties would be loose fill which would be the material you see being blown into attics.

The more common formats of fiberglass insulation are the batts most people are familiar with as well as rolls of insulation. While any type of insulation will work for roofs some prefer foam because it usually manages air flow better and the r values are higher. While fiberglass batts continue to be a widely used form of insulation they don t always perform to their rated r value. Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity.

How does fiberglass insulation work. People can be affected by fiberglass when they come into contact with it either during the manufacturing process or when it is being used in a building. Fiberglass is a popular residential and commercial insulator because of its energy saving qualities and minimal fire hazards. Fiberglass insulation can sometimes get compressed causing its r value to decrease.

If fiberglass isn t fitted in properly it can leave gaps for airflow. Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing. Fiberglass insulation or glass wool is a man made vitreous fiber. How does insulation work to prevent heat loss.

Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in. 4 most homeowners are very familiar with fiberglass they ve seen it at home improvement stores or at new construction sites so that familiarity lends towards helping sell it.