North Forty Spray Foam & Insulation installs open-cell and closed-cell spray foam for Sherman homes, attics, new construction, shops, metal buildings, barndominiums, and commercial or light industrial buildings.
Sherman is a growing market with a mix of established neighborhoods, new residential development, and commercial construction. Those projects don't all call for the same insulation approach — which is why we evaluate each building before recommending anything.
We're a service-area contractor serving Sherman and nearby North Texas communities — not a business located in the city.
Homes, attics, walls, and remodels
Envelope planned from the start
Steel structures and outbuildings
Offices and light industrial
Residential, new construction, and commercial work each raise different insulation questions. Here's how we approach them — and where you can read more.
In an existing Sherman home, the attic is often where the conversation starts — it's usually the largest uncontrolled interface between the living space and the outside. Air leakage around recessed lights, top plates, and penetrations can matter as much as the insulation itself, so attic work typically begins with an air-sealing discussion.
There are two broad attic approaches — insulating at the attic floor and keeping the attic vented, or moving the thermal boundary to the roofline and bringing the attic inside the conditioned envelope. They solve different problems, and the existing ventilation strategy usually informs which one fits.
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New builds give you options you don't have later. The assembly can be planned from the start — where the thermal boundary sits, how the HVAC is configured, and how the roof is detailed. Decisions made at this stage are considerably harder to revisit once the drywall is up.
We coordinate with builders and general contractors so insulation work fits the construction schedule rather than disrupting it. If you're a builder with units coming up, early coordination tends to save everyone time.
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Commercial projects bring in different priorities: larger envelopes, occupancy schedules, and coordination with property managers or facility teams. Warehouses, offices, retail spaces, and light industrial buildings each have their own constraints.
We work around your operations where we can and keep the process coordinated with whoever manages the property.
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Barndominiums combine living space with shop or storage space under one roof, and those areas generally need different treatment. The conditioned living area and the unconditioned or semi-conditioned portion each raise their own questions about where the thermal boundary should sit and how moisture will be managed.
Related reading
The two spray foam options behave differently. This is a starting point — the right choice depends on your building assembly.
| Characteristic | Open-cell | Closed-cell |
|---|---|---|
| Density | Lower density, softer | Denser |
| Insulating value per inch | Lower per inch — generally needs a thicker application | Higher per inch, useful where depth is limited |
| Vapor behavior | More vapor-permeable | Can act as a vapor retarder in many assemblies |
| Common applications | Interior cavities with room for thickness | Exterior, structural, and moisture-exposed assemblies |
The process is straightforward. Insulation can't be priced accurately without seeing the building, so the estimate follows a look at your property.
Your location, the type of building, and what you're hoping to address. If it's a new build, your timeline helps too.
Sherman is within our service area. We'll confirm your specific address and set up a time to review the property.
A free estimate for your specific project, along with the reasoning behind the approach we recommend.
Whether it's a home, an attic, a new build, or a commercial space, we'll look at the building and walk you through the options. Free estimates for projects in Sherman and across North Texas.
Or view all service areas to see whether we cover your location.