For years, builders have defaulted to XPS for insulating above-grade walls—but things have changed. Thanks to advancements in graphite foam technology, a better option is here. If you’re still reaching for foam panels that are pink or blue, it’s time to take another look.
We’re putting Chrome GPS and Halo Exterra head-to-head against the well-known Foamular 150. The results speak volumes.
Please note: For the purposes of this comparison, we’re referencing the classic pink Foamular 150 that’s still widely stocked across the U.S.
Chrome GPS vs Foamular 150
Back to Basics: Raw Graphite Power
This is a straightforward comparison—Chrome GPS does not have any facers. So, this comparison is foam vs. foam: Type 2 GPS against Type 2 XPS
How Does Chrome GPS Stack Up?
Higher Long-Term R-Value
Chrome GPS delivers an R-4.7 per inch that stays consistent over the life of the structure—unlike Foamular 150, which starts and stays lower at R-4.46/inch.
Lower Cost at the Yard
On average, Chrome GPS comes in about 5% cheaper than Foamular 150 at retail. That’s savings from day one.
Smaller Environmental Footprint
Manufactured with 74% less fresh water and 92% less total GWP than XPS, Chrome GPS is the greener, more sustainable option.*
Fire-Tested and Code-Ready
Although Chrome GPS is defined as combustible as per Canadian and American building codes, there are provisions within the codes that allow Chrome GPS to be used in fire rated wall assemblies such as UL Design No. V306 and V332.
Halo Exterra vs Foamular 150
Graphite—Smarter, Sharper, and Built to Work
If Chrome GPS is all about raw performance, Exterra turns up the volume. With a built-in precision-perforated laminate facer and a Type 1 foam core, Exterra brings more than just insulation to the table—it simplifies the whole wall system.
What makes Exterra stand out?
Higher Long-Term R-value
With its graphite core, Exterra delivers a dependable R-4.7 per inch—and maintains that performance long-term, ultimately outperforming XPS as it ages.
Built-In WRB Functionality
Exterra’s precision-perforated laminate facer acts as a code-compliant water-resistive barrier (WRB) when taped, eliminating the need for separate building wrap. That means fewer steps and faster builds.
Lower Installed Cost
More flexible panels mean fewer breaks. Faster installs mean less labor. And built-in WRB means fewer materials. Altogether, you’re saving time and money on the job.
Type 1 Core = More with Less
Exterra’s lower-density Type 1 foam achieves superior performance with less material—making it more efficient and more sustainable.
Substantial Environmental Gains
Compared to Foamular 150, Exterra’s manufacturing process uses 83% less fresh water and has 95% less Global Warming Potential (GWP).**
Same Price, Better Value
Exterra goes head-to-head with Foamular 150 on cost—but delivers more across the board.
Wrapping it Up
When you compare Foamular 150 side-by-side with modern graphite options, it’s clear the game has changed.
Chrome GPS offers higher performance at a lower price with a smaller environmental footprint.
Halo Exterra adds smart features that save time, money, and resources—without a premium price tag.
Foamular 150? It’s outmatched.
Chrome and Exterra? They’re the new standard.
Build smarter and more sustainably. Go Graphite.
Source:
* Environmental Product Declaration – Halo Chrome, Type 2 EPS (GPS), ASTM C578, Type II EPD published by BASF.
Neopor GPS: Neopor-GPS-BMB-Insulation-IEPD10842.pdf
** Environmental Product Declaration – Halo Exterra, Type 1 EPS (GPS), ASTM C578, Type I EPD published by BASF
Foamular 150 NGX: SCS-EPD-09753_OwensCorning_FOAMULAR-NGX_101624.pdf
