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Exposed Roofs
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Exposed Roof Applications in Metal Buildings with Low Humidity (99KB PDF)
Metal Building Exposed Interior Roof - Application Information Sheet (98KB PDF)
THERMAX™ polyisocyanurate insulation/finish boards used in exposed applications help safeguard metal building systems that have low humidity** against thermal loss, moisture buildup and even fire damage. Use THERMAX insulation/ finish board products for exposed roof insulation applications in agricultural, commercial and industrial buildings such as factories, warehouses, agricultural structures, cold storage structures and similar facilities. THERMAX insulation/finish boards and THERMAX Metal Building Board provide exceptional thermal protection installed outside the metal roof framing - "C" purlin, "Z" purlin, bar joist or other frame - with the specified joint treatment to make a total insulation system.
**Buildings in which humidity is less than 50 percent
There is a Dow insulation product that is right for every Exposed Roof application:
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| Features & Benefits |
Recommended Product Solution |
Product Information Sheet |
Guide Specs |
CAD Details |
| Exceptional fire performance allows product to be installed without a separate thermal barrier (except air plenum areas). 4.0 mil white embossed aluminum finish surface provides a tough durable product with moderate impact resistance. Product can be power washed to a maximum spray pressure of 1000 psi any spray tip (3' away) or 2000 psi for spray tip greater than 15 degrees (3' away) (see Dow representative for specific instructions). Highest R-value per inch for foam plastic insulation (6.5 per inch). Best high temperature stability (250"°F) |
THERMAX Heavy Duty |
English (51KB PDF) |
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| Exceptional fire performance allows product to be installed without a separate thermal barrier (except air plenum areas). 1.25 mil white embossed aluminum finish provide a tough durable product with light impact resistance. Product can be power washed to a maximum spray pressure of 1000 psi (see Dow representative for specific instructions). Highest R-value per inch for foam plastic insulation (6.5 per inch). Best high temperature stability (250"°F). |
THERMAX Light Duty |
English (50.7KB PDF) |
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| Exceptional fire performance allows product to be installed without a separate thermal barrier (except air plenum areas)1.25 mil embossed aluminum facers provide a tough durable product that can be power washed to a maximum spray pressure of 1000 psi (see Dow representative for specific instructions). Highest R-value per inch for foam plastic Insulation (6.5 per inch). Best high temperature stability (250"°F) |
THERMAX Metal Building Board |
English (54.6KB PDF) |
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| Exceptional fire performance allows product to be installed without a separate thermal barrier (except air plenum areas).1.0 mil radiant quality aluminum facers provide a tough durable product. Highest R-value per inch for foam plastic insulation (6.5 per inch).Best high temperature stability (250"°F) |
THERMAX Sheathing |
English (50.6KB PDF) |
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