Spray foam insulation is a two-component mixture composed of isocyanate and polyol resin that comes together at the tip of a gun and forms an expanding foam that can be sprayed onto roof tiles, concrete slabs, into wall cavities, or through holes drilled in into a cavity of a finished wall.

There are two main types: open-cell and closed-cell spray foam. Open-cell foam is light and flexible, making it ideal for interior applications. Closed-cell foam is denser, providing a higher R-value, making it suitable for exterior and interior applications due to its strong insulating properties.

Spray foam insulation offers superior energy efficiency, air sealing properties, moisture control, and soundproofing. This means reduced energy bills, a more comfortable indoor environment, and potentially increased property value.

When properly installed, spray foam insulation can last the lifetime of the building. It typically does not sag, settle, or degrade under normal conditions.

Yes, spray foam insulation can be applied to existing structures. Professionals can drill small holes into the walls or access from behind to fill cavities with spray foam, which then expands and hardens.

While the initial cost of spray foam insulation may be higher than some traditional insulations, the long-term energy savings, reduced HVAC needs, and potential for increased property value can offset the upfront costs.

Closed-cell spray foam insulation is an excellent moisture barrier. It’s resistant to water and can help prevent mold growth. Open-cell foam, while breathable, also plays a role in moisture management and air sealing.