Fiberglass Attic Insulation Types

First you ll need to determine your r value.

Fiberglass attic insulation types.

Installing this type of insulation is an. It s available in fiberglass mineral wool plastic fibers and natural fibers. Fiberglass batts cellulose loose fill fiberglass and spray foam. Sheathing reduces heat conduction through structural elements like wood and steel.

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. If it s a new building simply reference the energy code map. Rigid panels of insulation. This type of insulation is ideal for attics with standard spaced beams and joists and very few obstructions.

Rigid fiber or fibrous board insulation consists of either fiberglass or mineral wool material and is primarily used for insulating air ducts in homes. First let s discuss the most common types of insulation available for attics. 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. Blanket insulation blanket insulation is available in rolls or batts.

These products come in a range of thicknesses from 1 inch to 2 5 inches. Fiberglass batts cellulose loose fill fiberglass and spray foam are common attic insulation types used. Polystyrene and polyurethane are the most common types of materials used in making foam board. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

It is also used when there s a need for insulation that can withstand high temperatures. We ll walk you through the steps to help you find the right type of fiberglass attic insulation and the right amount. More options exist but these four materials make up the vast majority of installations in minnesota attics where i operate.