Open-cell. Closed-cell. Honestly specified. Most contractors will sell you spray foam everywhere, we'll tell you where it belongs and where it's a waste.
Spray polyurethane foam is a liquid that expands into a solid the instant it hits a surface, filling every gap, crack, and irregularity. That's the part that makes it outperform every batt or blown product in real-world installed performance.
No separate caulking pass. The foam fills every gap and bypass simultaneously.
Closed-cell hits R-6.5 to R-7. Saves depth in shallow cavities and rim joists.
Closed-cell rigidifies framing, wall racking strength can improve 30%+.
Properly installed foam does not settle, sag, or lose R-value over 80+ years.
They are not interchangeable. The right choice depends on where it's going, what's behind the wall, what the climate is doing, and what the homeowner needs from the assembly.
Density: ~0.5 lbs/cu ft. Lighter, more flexible, easier to trim.
Best for: Interior wall cavities, vented attic floors, sound-dampening between floors, retrofits where breathability matters.
Cost: Lower per board-foot. Roughly half the price of closed-cell.
Trade-offs: Not a vapor barrier. Absorbs water if soaked. Not for exterior wall sheathing in mixed climates without careful detailing.
Density: ~2 lbs/cu ft. Rigid, structurally additive, sheds water.
Best for: Exterior walls, crawl spaces, metal buildings, basement rim joists, anything exposed to bulk water or vapor drive.
Cost: 2–3× per board-foot vs. open-cell. Higher upfront. Higher R-per-inch reduces depth needed.
Trade-offs: Rigid (no give for settling). Premium price. Requires more skill to apply evenly.
Two installers, same product, same house, wildly different results. Spray foam is unforgiving: temperature, ratio, pass technique, and depth all have to be right.
Walk-through with blower door and thermal imaging. Identify where foam belongs and what gauge.
Cover floors, mask penetrations, protect HVAC and electrical. Plywood walkways in attics.
Two-component proportioner heated to spec. Even passes, controlled depth, no missed bays.
Post-install thermal scan to confirm coverage. Trim, vacuum, walk you through the result.
We install fiberglass too, so we have no incentive to push you toward one product. When foam is the answer, it's because the conditions actually justify it.
What we typically measure on a correctly-spec'd North Texas spray foam project.
Properly mixed and applied foam fully cures within 24 hours and is inert. The smell some homeowners report is from off-ratio installs, the result of inexperienced crews who don't monitor proportioner temperatures and ratios in real time. We do.
In most cases, no, we'd remove existing fiberglass first to expose the substrate and ensure adhesion. We'll diagnose case-by-case.
An attic is typically one day. A whole-home retrofit is two to three. We coordinate around your schedule and your HVAC.
In the right application, yes, typical bill drops of 20–40% on properly diagnosed homes. We'll show you the math during the audit before you commit a dollar.
Our workmanship is warrantied for the lifetime you own the home. Manufacturer warranties on the foam itself are typically 25 years. Properly installed, it lasts indefinitely.
We'll diagnose your home first, then recommend honestly, even if it means a smaller job than you expected.
