What Are the Different Types of Insulation?

Blown-In Cellulose Insulation

Blown-in cellulose insulation is commonly used in attics, dense pack walls, and other closed-in, hard-to-reach spaces. This loose-fill wall spray insulation is commonly composed of fiber particles and recycled waste materials such as wood, paper products, and cardboard that have been treated with fire retardant, which is why it’s often recognized as an eco-friendly insulating material. Because this type of insulation is installed by being blown into place, special equipment is required to ensure the material fills in and conforms to the intended space, and should only be installed by a professional.

Cellulose Insulation vs. Spray Foam Insulation

How does blown-in cellulose insulation compare to spray foam insulation? Cellulose insulation does have some great advantages in that it is ideal for retrofitting existing spaces, doesn’t contain formaldehyde, can reduce sound pollution, and is fire resistant. The downsides of cellulose is that it’s made from materials that can be damaged if contacted by water, such as a leak in an attic. Once water contacts the cellulose insulation, it can weaken and take an exceptionally long time to dry out, which can lead to mold growth, sagging, and air pockets.

In comparison, spray foam insulation is a superior choice because it offers all of the same benefits and more! Along with having a higher R-value, spray foam meets requirements for maximum air and moisture barriers, waterproofing, and enhances structural strength where installed. What’s more, spray foam protects against all three forms of heat transfer while remaining fixed to the surrounding structures where it’s applied, including walls, floors, and roof decks to block out water and air.