Spray foam is not a product you buy off a shelf. It is made on your wall, in your weather, by whoever is holding the gun, from whatever two drums are on the rig. So the drum matters. This is the one on ours.
The specification
| Property | Heatlok HFO High Lift |
|---|---|
| Type | Closed-cell spray polyurethane foam, ~2 lb/ft³ |
| R-value | R-7.4 per inch (aged R-26 at 3.5 in., ASTM C518) |
| Maximum single lift | 6.5 inches, enough to reach R-49 in one pass |
| Blowing agent | Honeywell Solstice liquid HFO, global warming potential of 1 (99.9% lower than the previous generation) |
| Flame spread index | ASTM E-84 = 1 |
| Application temperature | 15°F to 100°F substrate range, which is why we spray through Pennsylvania winters |
| Indoor air quality | GREENGUARD Gold certified; low-VOC emission meets school and healthcare requirements |
| Codes | IBC, IRC and IECC compliant |
| Origin | Manufactured in the United States; every set serialized and traceable by lot number |
What “high lift” changes on your job
Older closed-cell foams had to be applied in thin lifts, typically two inches, with a cooling pause between passes because the reaction generates heat. High Lift is formulated to be applied thick in one pass without scorching or shrinking. On a pole barn roof deck that means fewer passes, fewer seams between lifts, and a more uniform finished surface. On an attic roof deck that needs R-49, it means reaching it in a single pass instead of three.
What HFO changes for the planet, and for you
The gas that expands the foam also stays trapped in the cells and does most of the insulating. Previous generations used blowing agents with global warming potentials in the hundreds or thousands. Solstice has a GWP of 1, on par with carbon dioxide, which is why HFO foams are the only closed-cell products still compliant in states that have regulated the old chemistry. It is also a better insulator per cell, which is where the R-7.4 comes from.
Two warranties, from two different companies
Because we are a Huntsman Certified Installer, every FoamGuard project is eligible for the Huntsman Building Solutions Limited Lifetime Product Warranty on the foam itself, registered within 90 days of application. Separately, FoamGuard warrants its own workmanship for five years under A Craftsman’s Promise, our written craftsmanship warranty. Most contractors can offer neither: uncertified applicators generally cannot register the product warranty, and few are willing to put their install in writing.