DuPont™ Thermax™ Heavy Duty Foam Insulation
Commercial | Residential | Multifamily | Wall
Made for high durability in difficult conditions
As an insulation and interior finish system for walls and ceilings, Thermax™ Heavy Duty Insulation stands up to the elements with a fiberglass core and thermoset-coated aluminum facing.
DuPont™ Thermax™ Heavy Duty Foam Insulation
Thermax™ Heavy Duty Insulation is designed as an insulation and interior finish system for walls and ceilings in metal, wood post frame, and concrete or masonry buildings, as governed by building codes. Thermax™ Heavy Duty consists of a glass-fiber-reinforced polyisocyanurate foam core faced with nominal 4 mil embossed white thermoset-coated aluminum on one side and 1.25 mil embossed aluminum on the other. The tough 4 mil white embossed aluminum surface makes it a durable insulation/finish choice for use in moderate-impact areas, and it can be pressure washed up to 2,000 psi with a 15-degree or greater spray tip (at 3’ minimum distance). Thermax™ Heavy Duty also offers high, long-term thermal resistance, with facers that help prevent water and water vapor intrusion into the insulation foam allowing it to stabilize at a higher R-value. Used in conjunction with the appropriate joint closure system for the application, Thermax™ Heavy Duty – with its low perm rating – can help to reduce moisture condensation within and behind the insulation.
Features & benefits
| Feature | Benefit |
|---|---|
| Easy to cut, handle, and install |
|
| Moisture Resistant |
|
Physical properties
| Method | Unit | Value | |
|---|---|---|---|
| Compressive Strength1 | ASTM D1621 | psi, min. | 25 |
| Water Absorption | ASTM C209 | % by volume, max. | 0.1 |
| Water Vapor Permeance | ASTM E96 | perm, max | <0.03 |
| Maximum Use Temperature | - | °F | 250 |
| Flexural Strength | ASTM C203 | psi, min. | 55 |
| Light Reflectance, Visual Light Spectrophotometer | - | % | 65 |
1 Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first
Available sizes
U.S.
| Thickness (in.) | R-Value | Board Size (ft.) | Edge Treatment | |
|---|---|---|---|---|
| 0.625 | 4.1 | 4 x 8, 4 x 12 | Square Edge | |
| 1.0 | 6.5 | 4 x 8, 4 x 12 | Square Edge | |
| 1.55 | 10.1 | 4 x 8, 4 x 12 | Shiplap | |
| 2.0 | 13.0 | 4 x 8, 4 x 12 | Shiplap |
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