Spray foam insulation creates an air seal and insulation layer in a single application — it expands to fill gaps and adheres to the surrounding surface, eliminating air infiltration that other insulation types can't address. Contractors in our network install both open-cell and closed-cell spray foam for homeowners and commercial properties throughout Longview and Gregg County.

Longview sits in Gregg County at the heart of the East Texas oil patch, a city whose modern layout still traces back to the 1930s East Texas oil boom. That boom-era wealth built solid brick ranch homes through the 1950s-60s in neighborhoods like Southwood and around McCann Road, many of which still carry their original attic insulation — often a thin layer of vermiculite or early fiberglass batt that falls well short of current R-38 to R-49 recommendations for the climate zone. LeTourneau University and the Eastman Chemical plant anchor the local economy, and residential growth has extended west toward Highway 259 with newer construction using blown cellulose or fiberglass at modern depths. Pine forest surrounds Longview on nearly every side, and the dense tree cover traps humidity close to the ground even after a summer day's heat starts to break — a moisture load that makes proper attic ventilation paired with adequate insulation depth more important here than in drier parts of the state, since trapped moisture in an underinsulated attic accelerates wood rot and mold risk.

Open-Cell vs. Closed-Cell Foam

Open-cell foam has a lower R-value per inch (around R-3.5) but is less expensive and expands aggressively to fill cavities. It's vapor-permeable, which makes it appropriate for some wall applications in this climate. Closed-cell foam has a higher R-value per inch (around R-6-7), is rigid, and acts as a vapor barrier — it's the right choice for crawl spaces, exterior walls in high-moisture areas, and unvented attic assemblies. We recommend the right type for your specific application.

Some rooms are noticeably harder to heat or cool than others

Uneven temperatures between rooms, especially rooms above or below an attic, are a common sign of insufficient or unevenly distributed insulation.

Noticeably higher heating and cooling bills than similar-sized homes nearby

This is one of the more measurable signs that a home is losing conditioned air faster than it should — worth a comparison before assuming it's just an old HVAC system.

Ice dams forming on the roof edge in winter, or a hot, stuffy attic in summer

Both point to heat escaping into the attic space rather than staying inside the living area — a classic insulation-and-ventilation combination issue.

When Spray Foam Is the Right Choice

Spray foam is particularly valuable when air sealing is the primary goal, when you're insulating unusual shapes or hard-to-access cavities, when you need insulation in a vented or conditioned crawl space, or when you're doing an unvented attic assembly. It's generally more expensive than blown-in or batt insulation per square foot — we'll tell you when the premium is justified.

Have Questions?

We're happy to walk through your situation before you commit. Call us and we'll tell you honestly whether an upgrade makes financial sense for your home.

Call (469) 210-0277

This content is reviewed by the Texas Insulation Pros editorial team and informed by licensed-contractor sourcing, manufacturer documentation, and established industry standards for Insulation. Read our editorial standards.