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  • DuPont™ Thermax™ Basic NH Insulation

DuPont™ Thermax™ Basic NH Insulation

Non-Halogenated (NH), High-Performance, Glass-Fiber Reinforced Polyiso Foam Insulation

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DuPont™ Thermax™ Basic NH Insulation

Non-Halogenated (NH), High-Performance, Glass-Fiber Reinforced Polyiso Foam Insulation

<br><b>DuPont™ Thermax™ Basic NH Polyisocyanurate Insulation</b> is a non-structural, rigid board insulation consisting of a glass-fiber-infused, closed-cell polyisocyanurate foam core laminated between 1.0 mil smooth reflective aluminum facers on both sides. As a result, <b>Thermax™ Basic NH Insulation</b> offers high, long term R-value providing continuous, durable insulation within the building envelope. <br><br> <b>Thermax™ Basic NH Insulation</b> is engineered to achieve a Class A fire rating, making it suitable for a variety of concealed and exposed applications. It meets the stringent requirements of a flame-spread index of 25 or less and a smoke-developed index of 450 or less. Additionally, it features NFPA 285 tested assemblies, approved for use in Exterior Walls of Types I, II, III, and IV construction, in accordance with Section 2603.5 of the International Building Code.
 
 
 
 
 
 

Features & Benefits 

 
 
 

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Ease of Installation
  • Installs quickly to walls including girts, steel stud, tilt-up, block and wood.
  • Is lightweight, easy to cut, handle and install.
  • Can be sawed or cut with a knife, small hand saw or circular saw.
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High Performance Durability
  • Class A fire-rated and can be used in both concealed and exposed areas within a building.
  • Offers increased durability on the job site, leading to less damage and less job-site waste.
  • R-Value of 6.6 at 1" thickness.
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Moisture Resistant
  • Helps reduce the potential for condensation within the wall assembly.
  • High R-value can provide enhanced thermal efficiency.
  • Facers help reduce air penetration and water vapor intrusion.
 
 
 

Specifications

 
 
 
 
 
 

Testing

<b>Thermax™ Basic NH Insulation</b> exhibits the properties and characteristics indicated in the table below when tested as represented. Review all instructions and (Material) Safety Data Sheet ((M)SDS) before use. Please contact DuPont at 1-833-338-7668 when additional guidance is required for writing specifications that include this product.

TEST METHOD TEST TITLE PROPERTY RESULTS
FIRE
ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials Surface Burning Characteristics1 Flame Spread ≤ 25
Smoke Developed ≤ 450
Core and Finished Product
UL 1715 Standard for Safety Fire Test of Interior Finish Material Fire Progagation - Interior Pass
NFPA 285 Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components Fire Progagation - Exterior2 Pass
NFPA 286 Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth Fire Progagation - Interior Pass
NFPA 268 Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source Ignitabiilty - Exterior Pass
THERMAL
ASTM C518 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus Thermal Resistance 1 inch @ 75°F mean temp3 6.6 ft2
•h•°F/Btu, R-value, min.
ASTM D2126 Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging Dimensional Stability 0.4% linear (length & width)
STRENGTH
ASTM D1621 Standard Test Method for Compressive Properties of Rigid Cellular Plastics Compressive Strength4 20 psi
ASTM C203 Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation Flexural Strength 50 psi
ASTM D1623 Standard Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular Plastics Tensile Strength 500 psf, min.
AIR
ASTM E2178 Standard Test Method for Determining Air Leakage Rate and Calculation of Air Permeance of Building Materials Leakage rates less than 0.0001 L/s/m2
at a test pressure of 75 Pa. 		Pass
ASTM E2357 Standard Test Method for Determining Air Leakage Rate of Air Barrier Assemblies Air Leakage No Leakage
WATER
ASTM E96 Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials Water Vapor Permeance. 0.01 perm
ASTM C209 Standard Test Methods for Cellulosic Fiber Insulating Board Water Absorption 0.1% volume, max.
ASTM E331 Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference Water Penetration Pass

1Calculated flammability values for this or any other material are not intended to represent hazards that may be present under actual fire conditions.

2See Jensen Hughes engineering judgement

3R-value of 1.0-inch of foam measured @ 75°F mean temperature, determined in accordance with ASTM C518 after aging for 90 days @ 140°F.

4Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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