EPS
Our expanded polystyrene foam products deliver lightweight, durable insulation that improves energy efficiency and reduces heating and cooling costs. Its moisture resistance and structural strength make it ideal for construction, packaging, and protective applications.

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Our EPS product portfolio
We can provide quick delivery on full truckloads of cut blocks in custom dimensions. These items can be
- Offered in densities from .75 lb. PCF up to 3.0 PCF
- Made of up to 40% recycled content
- Grooved for precision fits
- Tapered or square cut.
- Packaged or shipped in bulk
Extremely lightweight and structurally strong, EnviroGreen™ Geofoam has proven to be one of the best and most versatile geosynthetic materials available. Contractors use EnviroGreen™ Geofoam blocks to stabilize slopes and embankments, build retaining walls, insulate pavement, frost-protect shallow foundations, and as a low-cost solution for stadium steps.
EnviroGreen™ Geofoam is an excellent thermal insulator for cold storage warehouses and refrigerated storage tanks.
Unlike other materials, EnviroGreen™ Geofoam is inert: it does not break down or leach into ground water, making it safer for the environment. It also provides a lower carbon footprint than traditional dirt or stone fill, and is more economical than other fills.
Used in both commercial and residential structures, EIFS (Exterior Insulation and Finish Systems) wraps the building in a thermal blanket that reduces air infiltration by as much as 55% when compared to brick and wood construction.
Carpenter Co. is certified for ASTM E2430 by Underwriters Laboratories, and is listed as a third party vendor exterior wall board packaged for Acrocrete, Finestone, Senergy, Sonowall, Dryvit, STO, TEC, Teifs, and Masterwall.
Carpenter Co. expanded polystyrene offers outstanding buoyancy and resistance to harmful UV penetration, with floats in any size and density required.
Our environmentally friendly products are made with recycled material and achieve water absorption levels well below ASTM C578 Standards.
Our energy-saving laminates can be used for non-structural interior and exterior insulation, cavity walls, siding underlayment, roofing recovery board.
Products | Laminate Facers | Densities |
Rigid sheets with double faced laminate 48” width up to 12’ length Thicknesses from ½” to 4” | White or brown kraft Clear poly Poly with grid markings Foil Metalized poly | From .75 PCF to 3.0 PCF |
Fanfold for ease of one person installation Thicknesses of ¼”, ⅜”, ½”, ¾” Lengths up to 60’ |
Protective shapes for glass, chinaware, electronic equipment and other fragile items; corrugated box insulation for temperature sensitive product shipping – whatever you have to ship, you can protect it better with EPS packaging from Carpenter Co.
All our products offer thermal insulation, high compressive strength for stacking, and compatibility with corrugated cardboard, flexible-foam and chipboard composites. Custom cut is available in the most intricate patterns to protect against shock and vibration.
Carpenter EPS Roof Insulation provides an excellent thermal barrier for both new construction and reproofing applications. Our UL certified EPS products offer:
- Permanent R-value
- Inherent water resistance
- Superior thermal efficiency per dollar
- Dimensional stability
- Minimal weight
- Easy handling and installation.
Carpenter EPS Roof Insulation is compatible with a variety of commercial roofing membranes, and is approved for use with CEP, EPDM, CSPE, neoprene, PIB, PVC, modified bitumen, and organic, fiberglass and polyester roofing felts.
We have an EPS Roof Insulation product for almost any application. In our portfolio you can find:
- Flute Fillers (both square and tapered)
- Styrodeck™
- Holey Board (for lightweight concrete decks)
- Recovery Board
We provide custom cut insulation that keeps the spa at the desired temperature while saving energy.
With the tightest of tolerances, we can taper any cover in widths of 48” or less and to any length required for the largest of today’s hot tubs. We can provide densities from 1-lb. up to 3-lb. and take extra steps in our production to prevent any bowing.
As the leader in EPS development, we have an entire research and development center that specializes in finding new uses for expanded polystyrene.
Technical Specifications
Important information
EPS should not come in contact with chimneys, heater vents, steam pipes or other surfaces where temperatures exceed 150 (degrees F). It is not recommended for unballasted applications where sustained roof temperatures exceed 165 (F) or intermittent temperatures exceed 180 (F). Overlayment board, such as wood fiberboard or perlite, must protect EPS before the direct mopping of hot asphalt or torching of modified bitumen. Care should be taken when using solvents, cleaners, cements, adhesives, sealers and hot air welders on or around EPS insulation.
Code compliances
- ASTM C-578-10
- ASTM D6817
- ASTM E2430
- Underwriters Laboratories (UL)
- Factory Mutual (FM)
- Model Building Codes
- ICBO Section 1712
- BOCA Section 2002
- SBCCI Section 717
- StyroDeck
Downloads
Production Locations
Contact Us
Let’s discuss custom polystyrene solutions for your products and applications.