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Closed cell spray foam insulation Anna TX homeowners choose from NTX Foam Pros delivers the highest R-value per inch of any insulation product available — combined with a built-in vapour barrier and structural rigidity that no other insulation type can match. For North Texas homes dealing with extreme heat, humidity swings, and the occasional hard freeze, closed cell spray foam is the premium solution that performs where other products fall short.
What Makes Closed Cell Spray Foam Different
Closed cell spray foam expands to roughly one inch of thickness and cures to a rigid, dense foam with an R-value of approximately 6.5 per inch. Unlike open cell foam, the closed cell structure prevents moisture vapour from passing through — making it a true vapour retarder in addition to an air barrier and thermal insulator. A two-inch application provides R-13 and full vapour control. A three-inch application hits R-19 and adds meaningful structural rigidity to the assembly it’s applied to.
According to Energy Star, proper air sealing combined with high-performance insulation is the most effective way to reduce home energy consumption — closed cell spray foam delivers both simultaneously.
Where Closed Cell Spray Foam Is Used
Closed cell spray foam is the right product for applications where moisture control, maximum R-value per inch, or structural performance is required. Common applications in North Texas homes include crawl space walls and rim joists where ground moisture is a concern, exterior walls where cavity depth limits insulation thickness, roof decks in unvented attic assemblies, metal building walls and roofs where condensation control is critical, and any application exposed to occasional flooding or high humidity.
Closed Cell vs Open Cell — Choosing the Right Product
Closed cell costs more per board foot than open cell but delivers nearly double the R-value per inch and adds vapour control. For applications where you need maximum performance in a limited space, or where moisture management is critical, closed cell is the correct choice. For interior applications where space isn’t constrained and vapour control isn’t needed, open cell is more economical. We assess every project individually and recommend the right product — not the most expensive one.
Our Closed Cell Spray Foam Process
Every closed cell spray foam project starts with a free in-home estimate. We assess the application, existing conditions, and performance requirements before recommending a scope of work and product specification. Installation is completed in a single visit for most residential projects. We protect adjacent surfaces, apply foam to the correct thickness for the application, and leave the site clean.
Serving Anna TX and Surrounding Communities
NTX Foam Pros installs closed cell spray foam throughout Anna, McKinney, Celina, Melissa, Van Alstyne, Weston, Gunter, Howe, and Sherman. Call (972) 645-2933 for a free estimate.
Frequently Asked Questions
What R-value does closed cell spray foam provide?
Closed cell spray foam provides approximately R-6.5 per inch. A two-inch application delivers R-13, and a three-inch application delivers approximately R-19 — in a fraction of the wall cavity space required by traditional insulation products.
Is closed cell spray foam worth the extra cost over open cell?
For applications requiring vapour control, maximum R-value in limited space, or structural performance, yes — closed cell is worth the premium. For interior applications without moisture concerns, open cell is often more economical and equally effective. We recommend the right product for each specific application.
How long does closed cell spray foam last?
Properly installed closed cell spray foam has an indefinite service life — it does not sag, settle, or degrade over time the way traditional insulation products do. Most manufacturers provide lifetime product warranties.