DuPont™ Thermax™ Metal Building Board
Commercial | Residential | Multifamily | Wall
Easy installation in walls and ceilings
Ideal for metal structures as well as standing seam metal roofs, Thermax™ Metal Building Boards deliver long-term R-value and are listed in 1-, 2-, 3- and 4-hour UL fire rated wall assemblies.
DuPont™ Thermax™ Metal Building Board
Thermax™ Metal Building Board* provides both insulation value and an interior finish system for walls in metal buildings as well as in standing seam metal roofs. It consists of a polyisocyanurate foam core with 1.25 mil embossed aluminum facers on both sides and a Sound Transmission Classification (STC) of 15. Thermax™ Metal Building Board 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™ Metal Building Board – with its low perm rating – can help to reduce moisture condensation within and behind the insulation
* Thermax™ Metal Building Board is a former product of The Dow Chemical Company
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 |
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 (feet) | Edge Treatment | |
|---|---|---|---|---|
| 0.5 | 3.3 | 4 x 8, 4 x 12 | Square Edge | |
| .75 | 5.0 | 4 x 8, 4 x 12 | Square Edge | |
| 1.0 | 6.5 | 4 x 8, 4 x 12 | Square Edge | |
| 1.55 | 9.8 | 4 x 8, 4 x 12 | Square Edge, Shiplap | |
| 2.0 | 13.0 | 4 x 8, 4 x 12 | Square Edge, Shiplap |
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