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 Lufkin and Angelina County.

Lufkin is the seat of Angelina County and grew up as a timber and sawmill town, with the Angelina National Forest and Sam Rayburn Reservoir framing the city on its eastern and southern edges. That timber-industry heritage still shapes the local economy through companies like Lufkin Industries, and the housing stock includes a meaningful share of older wood-frame homes where original insulation, if present at all, is often a thin, settled layer of loose-fill material that has compacted well below its rated R-value over decades. Deep East Texas humidity sits heavier in Lufkin than in the drier western parts of the state, trapped by dense pine forest on nearly every approach into town, and that persistent moisture combined with underinsulated, poorly ventilated attics is a common driver of both high energy bills and attic moisture problems in the city's older homes. Residential growth has been modest and concentrated along Highway 59 and Highway 103, with newer construction using insulation levels well ahead of what the older in-town housing stock carries.

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.