Open-cell spray foam is a type of insulation made from polyurethane that expands to fill cavities. It has a soft, sponge-like texture and is designed to provide thermal insulation and air sealing in one application.
Open-cell foam is less dense, more flexible, and generally less expensive than closed-cell foam. It has a lower R-value per inch but offers excellent air sealing and soundproofing capabilities.
Open-cell spray foam typically has an R-value of about 3.5 to 3.7 per inch. This value measures the foam’s resistance to heat flow, which helps determine its insulating performance.
It’s often used in interior applications like attics, walls, ceilings, and rim joists. It’s ideal for areas where vapor permeability is acceptable and sound absorption is a priority.
Open-cell foam is not water-resistant. It is vapor-permeable and can absorb moisture, making it unsuitable for below-grade or high-moisture environments without a vapor barrier.
Yes, it is commonly used in unvented attics and rooflines to provide insulation and create an air barrier. It helps reduce energy loss and maintain indoor comfort.
Typical application thickness ranges from 3 to 6 inches depending on the insulation goals and local building codes. Multiple passes may be required for full coverage.
Yes, its soft and porous structure helps absorb sound, making it a good choice for sound dampening in interior walls and ceilings.
After curing, it is inert and does not emit harmful chemicals. During installation, proper ventilation and safety measures are necessary to avoid inhalation exposure.
With proper installation, it can last the life of the structure. It doesn’t sag, settle, or degrade over time under normal conditions.
It is sprayed as a liquid that expands into foam upon application. Professional equipment and trained installers are needed to ensure proper adhesion and coverage.
Most residential applications can be completed in one to two days, depending on the size and complexity of the project.
Yes, but it often requires removing drywall or drilling access holes. It is more commonly installed in new construction or major renovation projects.
It seals gaps and cracks, reducing air leakage and helping HVAC systems operate more efficiently. This can lead to noticeable energy savings.
It has a lower environmental impact compared to some other insulation types due to its air sealing efficiency. Some products may contain renewable or recycled content.
It requires very little maintenance after installation. Visual inspections can help detect any physical damage or moisture issues.
It is generally more expensive upfront than fiberglass but less expensive than closed-cell foam. The energy savings over time can help offset the initial cost.
Yes, Valley Spray Works offers open-cell spray foam insulation services in Twin Falls and surrounding areas.
Service areas include Twin Falls, American Falls, Burley, Hagerman, Rupert, Buhl, and nearby locations.
You can call Valley Spray Works at (208) 490-9260 to schedule a consultation or request an estimate.
Valley Spray Works is your premier spray foam insulation contractor serving Buhl, and Southern Idaho. With a commitment to excellence and customer satisfaction, we have established ourselves as a trusted name in the insulation industry.
