Spray foam Insulation Contractor is a powerful barrier that restricts air flow through walls, floors, ceilings and attics. It is a great solution for new construction projects, but can also be used in existing homes and metal buildings – as long as all cavities are accessible. Unlike fiberglass and cellulose insulation, spray foam won’t compress or sag over time.
When sprayed, the foam expands to fill nooks and crannies, making it ideal for sealing cracks around light fixtures, electrical outlets and switches, and gaps where walls meet windows and doors. It is also an excellent solution for attics, crawl spaces and rim joists. Spray foam can even be sprayed over existing insulation, if necessary.
Spray Foam Insulation Installation: What to Expect from HD Spray Foam
Both open and closed cell foams are available for home use. Open-cell spray foams are softer and less rigid because their pockets aren’t fully encapsulated, and they tend to absorb more moisture and vapor than closed-cell varieties.
Closed-cell spray foams are hard and rigid because their pockets are fully encapsulated, which makes them more resistant to moisture and vapor. They typically use water or carbon dioxide as a propellant and are often better suited for residential homes.
Regardless of which type of spray foam you choose, it is recommended to hire a professional contractor for the installation process. This is especially important for larger areas and for those that require precise insulation performance. The reason for this is that the spray foam insulation contains polyurethane and isocyanates – substances that can irritate the eyes, nose, and throat if they come into contact with the skin or are inhaled. These chemicals can also off-gas if the insulation is not properly installed or allowed to cure for an extended time.