What is the Best Type of Foam Insulation for Your Home?

Ultimately, closed-cell spray foam is by far the best choice for insulation in your home. It is physically stronger and better insulates a space, creating an effective vapor barrier that eliminates the need for additional air conditioning tasks. The four most common types of insulation are spray foam, fiberglass, cellulose and mineral wool. Aerosol foam insulation costs more than block insulation, but has higher R values and forms an air barrier.

Blow insulation, also known as loose-fill insulation, is installed by a machine that blows or sprays the insulating material into the space being insulated. The paper-like substance used in blow insulation is typically made of fiberglass, rockwool, or cellulose, making it flexible enough to adapt to almost any location. Insulating materials in the form of blocks are designed to fit the standard width between wall uprights, attic beams and floor beams. If you opt for the rolled shape, you will have to cut it yourself with a multi-purpose knife before assembling it.

When selecting an insulation material for your home, there are several factors to consider. Fiberglass can irritate the skin and lungs, so if it's an insulator made of fiberglass, be sure to wear protective equipment and clothing. Aerosol foam insulation is made of liquid latex or polyurethane foam and is designed to fill gaps and crevices inside walls and other surfaces. When aerosol foam insulation is sprayed into a cavity, it expands and then hardens, so that it completely fills every space.

Open-cell spray foam is lighter and less dense, making it more suitable for interior applications with a higher risk of moisture. Closed-cell spray foam is denser and more moisture resistant, making it more suitable for outdoor applications and areas with high humidity levels. Foam insulation products create an air seal in your home that will make it more comfortable while saving you money on your monthly energy bills. Fiberglass and cellulose must be maintained and eventually replaced over time, while spray foam is one and it's ready, which means that it doesn't need any maintenance and won't need to be replaced.

The best types of insulation are largely dependent on the local climate, although the structure of your home is also an important factor. When fiberglass gets wet, water accumulates in the material's bags and dramatically reduces its insulating properties. Aerosol foam may be more susceptible to retaining water or moisture but can be easier to manage and fill spaces since it is not as rigid as closed-cell foam. Mezzanine walls should be insulated with insulation that is not sensitive to water that prevents indoor air from coming into contact with cold surfaces.

This creates a layer of insulating foam that fills all the small nooks and crannies of the house structure, making it airtight. When insulation does its job correctly, it affects conduction (heat transfer) and convection (air flow), which can affect both the comfort and energy efficiency of your home. Fine Home Building recommends only air-impermeable insulation for the tire joist, whether it's spray foam or rigid foam plates.