Fiberglass Attic Insulation Types

Rigid fiber or fibrous board insulation consists of either fiberglass or mineral wool material and is primarily used for insulating air ducts in homes.

Fiberglass attic insulation types.

Blanket batts and rolls are typically constructed with fiberglass although versions made of cotton mineral wool and plastic fibers are also available. More options exist but these four materials make up the vast majority of installations in minnesota attics where i operate. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. We ll walk you through the steps to help you find the right type of fiberglass attic insulation and the right amount.

Installing fiberglass attic insulation first time adding insulation to an attic. First let s discuss the most common types of insulation available for attics. Because blown in insulation which is fiberglass generally can go on top of the existing insulation the negative thing about blown in insulation is that it makes the attic absolutely impassable when you re done and you need a lot more thickness of it because it has more air inside of it than you would if you used fiberglass bats. These products come in a range of thicknesses from 1 inch to 2 5 inches.

Rigid panels of insulation. It is also used when there s a need for insulation that can withstand high temperatures. If it s a new building simply reference the energy code map. Sheathing reduces heat conduction through structural elements like wood and steel.

It s available in fiberglass mineral wool plastic fibers and natural fibers. Polystyrene and polyurethane are the most common types of materials used in making foam board. This type of insulation is ideal for attics with standard spaced beams and joists and very few obstructions. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Blanket insulation blanket insulation is available in rolls or batts. Installing this type of insulation is an. Fiberglass batts cellulose loose fill fiberglass and spray foam.