Attic Roof Insulation Types

Lightweight enough for attic applications over inch drywall ceilings with framing every 24 inches.

Attic roof insulation types.

There are five primary types of insulation for roofs with their own advantages and disadvantages. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. You also can find batts and rolls made from mineral rock and slag wool plastic fibers and natural fibers such as cotton and sheep s wool. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.

R values vary based on the type thickness and density of the insulation material. The higher that value the better the insulating power. Insulation is rated by its r value. With attic roof insulation you ll also get better performance from ductwork located in your attic.

Choose from two types. When installed properly both types of insulation fill all of the nooks and crannies in a space and. The experts at dr. In general an attic s r value should be between r 30 and r 49.

Blanket insulation the most common and widely available type of insulation comes in the form of batts or rolls. It consists of flexible fibers most commonly fiberglass. Blowing the insulation should take less than 1 5. The specially designed atticat machine conditions the insulation by adding millions of tiny air pockets that give the material its insulating power and energy saving r value over time.

In particularly cold climates you might go up to r 60. Unless you re using mineral wool insulation or your fixtures are rated safe for contact with any type of insulation don t allow the material to touch or cover recessed cans or. Atticat expanding blown in insulation is designed for your attic insulation project in new or existing homes. Box out light fixtures.

This insulation consists of fluffy strands of fiber blown into attics and walls with a special machine. Energy saver are experienced in installing all types of attic roof insulation as well as duct encapsulation and insulation. This is also known as thermal resistance and is often measured in terms of r value. R value measures how resistant types of insulation are to heat flow.

They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively. The key value is always the capacity of insulation to resist heat flow. Closed cell and open cell aka 2 pound and pound respectively. It fills nooks and crannies eliminating cold spots.