When it comes to insulating your attic, there are a variety of materials available to choose from. The most common types of loose fill insulation include cellulose, fiberglass, and mineral wool (rock or slag). All of these materials are produced from recycled scrap materials. Cellulose is mainly made from recycled newsprint, while most fiberglass products contain between 40 and 60% recycled glass.
Mineral wool is generally produced from 75% post-industrial recycled content. If you have drafty rooms, hot or cold ceilings, and high energy bills, your attic probably needs new or better insulation. The cost of insulating the attic depends on several factors, including the square footage of the attic, the type of insulation you choose, and whether you plan to do the attic insulation yourself or hire a professional. For comparison, a poorly insulated older home may have R-15 insulation only four or five inches deep.
Hermetic sealing of the entire house is an essential part of properly insulating the attic and making the house more comfortable and efficient. The main difference between insulating blocks and rolls is that the blocks are installed in pieces, while the rolls are deployed between the wall frame and the ceiling. As an experienced professional in attic insulation, I can tell you that it's important to evaluate aspects such as the type of application and R-value when considering insulation for your home. Radiant barriers and reflective insulation work by reflecting radiant heat, while foam plate insulation has a high R value and can be used almost anywhere in the house.
Thermal insulation is often a more cost-effective option than reflective attic insulation in colder climates. It's more effective to install insulation on the surface of blocks either outside or inside the foundation walls. Homeowners can install some types of insulation themselves, such as blankets, boards, and materials that can be placed in place. However, it's best to hire a certified insulation contractor who can properly inspect an attic with a variety of tools.
When it comes to walls, insulating material can also affect the R values needed to achieve good energy efficiency. Rigid fiber or fibrous plate insulation consists of fiberglass or mineral wool material and is mainly used to insulate household air ducts.
