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Enclosing crawl spaces and insulating basements are growing trends. If done properly by a professional, you can fix mold and moisture issues and reduce your carbon footprint—not to mention your heating and cooling bill.

Bora-Foam is the first termite-resistant, expanded polystyrene insulation designed for basements and enclosed crawl spaces.


Resistant to termite damage
Vapor permeance ≤0.08
Provides R-11 insulation
Safe for handling and noncorrosive
Puncture resistant
Easy cut lines
3 mil poly on each side of board
3/4 cut & snap can create inspection flap
Won’t cut your hands like foil products
No itch from fiberglass
Meets ICC ES AC239 requirements for termite resistance foam plastic
Is suitable for use in all areas of termite risk
100% recyclable and made using 10%-15% recycled content
Meets requirements of IBC Section 2603.8
Meets requirements of IRC Section 320.5


Insulation helps keep basements and crawl spaces dry, clean and comfortable. Unfortunately, insulations are susceptible to termite infestation and can trap moisture.

Termites love to live, work and eat in comfortable and protected surroundings. All untreated insulations can potentially provide this environment. Most of the U.S. is susceptible to termite activity. It is important that insulation products and systems account for the potential of termite infestation.

Termites reduce insulation & system performance.
Termites cause problems for structural systems.
Costs to control termites can continue indefinitely.

Bora-Foam is an important component in preventing these problems. It’s made using the same active ingredient – disodium octaborate – as Bora-Care, our EPA-registered borate-based termite deterrent. The disodium octaborate is incorporated into the insulation during the manufacturing process.Bora-Foam has been thoroughly tested, is safe for handling and is noncorrosive. And termites hate it.

Termite-Damaged Untreated Foams Bora-Foam Shows No Termite Damage


Bora-Foam is manufactured to Quality Control Program standards monitored by Underwriters Laboratories Inc. and recognized by national building codes.

Bora-Foam manufacturers offer product warranties that ensure thermal performance, physical properties and termite resistance.

Bora-Foam has been evaluated for below-grade use by the ICC ES and meets ICC ES AC239 requirements. Please see ICC ES ESR-1006. Bora-Foam can stand up to all industry tests—and has. No other EPS can say that.


Bora-Foam™ at 2.5″ = R-11 and at 3.75″ = R-16

Core made from ICC-ES recognized EPS* see ESR-1006

UL Classified for Surface Burning Characteristic see Cert. AFM 7

UL Classified to meet ASTM C578 see Cert. AFM 1

Termite resistant and meets ICC-ES AC239 see ESR-1006

Bora-Foam Water Vapor Transmission not greater than 0.08 perm at 2.5″ thickness

Install per manufacturers specifications & Building Code requirements

* Flame retardants are used in the manufacture of EPS and provide an important margin of safety.  However, EPS products must be considered combustible and not exposed to sources of ignition.


Bora-Foam Technical Data Flyer  (Acrobat PDF)