
How Does GPS Perform Compared to XPS and Poly ISO?
What Is GPS? Graphite Polystyrene (GPS) is a type of polystyrene foam insulation and is the insulation material that forms the core of Halo’s Interra®, Exterra®, and Subterra® panels.

What Is GPS? Graphite Polystyrene (GPS) is a type of polystyrene foam insulation and is the insulation material that forms the core of Halo’s Interra®, Exterra®, and Subterra® panels.

Wondering whether Type 1 GPS or Type 2 Polyiso is the better fit for your next project? Check out this side-by-side comparison between Type 1 Graphite Polystyrene (GPS), and Type 2 Polyiso (Polyisocyanurate).
3. Install Inspection Strips
Inspection strips allow you to visually inspect the home’s sill plate and rim joist for signs of termites or carpenter ants. This way, you can catch an infestation and call in pest control before excessive damage occurs.

Check out the top 5 advantages Halo’s foam board offers compared to other types of rigid insulation, such as XPS, Polyiso, and even EPS.

To take advantage of Exterra’s breathability, you’ll need that poly vapor barrier on the warm side to block vapor and moisture from traveling inside the building. Learn more about this code requirement here.

Interra is a far better bet if you’re looking for overall quality, performance, and stable R-Values. Spray foam, on the other hand, works well if you want to save time on installation, but it can be more costly overall.

Explore the Better Homes Program from
CleanBC and the program’s Energy Step Code pathway. Read the full article for the list of rebates your project may qualify for and outlines of the eligibility criteria.
Do you worry about exposing foam board insulation to the outdoors? Or leaving it uncovered inside a home? Read more to explore the perils of exterior and interior exposure, and how you can get the most of your foam board insulation.

Halo advanced rigid insulation foam boards can come in handy if you want to minimize echo in a room or decouple a partition or exterior wall while adding insulation and a vapor barrier if needed. Halo’s products excel at blocking heat flow and vapor, mitigating Radon ingress, and serving many other functions that improve health, comfort, and energy efficiency.

Adding a layer of R-5 CI to a wall assembly may not seem like a significant upgrade, but the tests prove otherwise — it’s highly consequential. Read this full article to see how you can potentially save 20-40% in energy savings by adding a layer of Halo Exterra!
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