North Forty Spray Foam & Insulation installs open-cell and closed-cell spray foam for residential and commercial buildings across North Texas. We help you understand the trade-offs so you can choose an approach that fits your building and goals.
Spray foam insulation is spray polyurethane foam (SPF). It is made from two liquid components that are mixed as they are sprayed and react on contact, expanding into a foam that cures in place inside the wall, roof, or floor cavity.
That expansion is the main difference between spray foam and materials such as fiberglass batts or blown-in insulation. Batts and loose-fill products are placed into a cavity and work best when they fit it closely. Spray foam grows to fill the cavity it is sprayed into, including the gaps, corners, and irregular spaces around framing, wiring, and penetrations — which is why it is often chosen where air sealing and a tighter building envelope are the goal.
Spray foam is not one product. It is available in two main types — open-cell and closed-cell — with different densities, expansion behavior, and moisture characteristics. Choosing between them is a project decision, not a default, and the right answer depends on the building assembly, moisture management, HVAC configuration, project goals, applicable codes, and site conditions.
Neither type is universally “better.” The right option depends on your specific project. Insulation decisions should account for how the assembly manages moisture and air, and how your HVAC system is designed.
Open-cell and closed-cell spray foam are different materials with different characteristics. Neither is universally better — they simply suit different applications. The table below outlines the general differences to be aware of when planning a project.
The descriptions above are general characteristics, not a recommendation. Which foam — or which combination of foams — is appropriate depends on the assembly, how moisture and air move through it, the HVAC design, the project goals, and applicable codes. A building that performs well with open-cell foam in one area may call for closed-cell foam in another.
We work with a range of project types across North Texas.
Homes looking to reduce heat transfer from above.
Steel structures where condensation matters.
Mixed-use steel structures with living space.
Offices, warehouses, and retail spaces.
New builds and existing home upgrades.
Tell us about your project and we'll advise.
Spray foam pricing depends on the building, the areas being insulated, and the foam type — so there is no single number that applies to every project. Here is what to expect when you request an estimate.
Share the property type, approximate size, and which areas you are looking to insulate.
We look at the assembly, existing construction, moisture and ventilation, and how the space is used.
You get a clear explanation of the foam types and approaches that fit your project, and the trade-offs between them.
Project scope and pricing are provided separately from this website so everything is clear before work begins.
Prefer to talk it through? Call (469) 634-7653. See our service area for coverage.
Share a few details about your building and we'll follow up to discuss an appropriate approach for your North Texas project.