WHY CHOOSE FOAM BOARD INSULATION?
Owens Corning® FOAMULAR® NGX® EDGELOCK® is high-strength XPS insulation designed for use in engineered applications requiring additional load-bearing capabilities. FOAMULAR® NGX® EDGELOCK® is a patented XPS design that interlocks boards together, preventing thermal breaks.
| Property | Test Method2 | 250 | 400 | 600 | 1000 |
Thermal Resistance, R-Value (180 days) minimum, hr•ft2•°F/Btu (RSI, °C•m2/W) | ASTM C518 | 5.0 (0.88) | 5.0 (0.88) | 5.0 (0.88) | 5.0 (0.88) |
@ 40°F (4.4°C) mean temperature | 5.4 (0.95) | 5.4 (0.95) | 5.4 (0.95) | 5.4 (0.95) | |
@ 25°F (-3.9°C) mean temperature | 5.6 (0.99) | 5.6 (0.99) | 5.6 (0.99) | 5.6 (0.99) | |
Long Term Thermal Resistance, LTTR-Value3, minimum hr•ft2•°F/Btu (RSI, °C•m2/W) | CAN/ULC S770-03 | 5.0 (0.88) | 5.0 (0.88) | 5.0 (0.88) | 5.0 (0.88) |
Compressive Strength4, minimum psi (kPa) | ASTM D1621 | 25 | 40 (276) | 60 (414) | 100 (689) |
Flexural Strength5, minimum psi (kPa) | ASTM C203 | 50 | 90 (621) | 120 (828) | 150 (1035) |
Water Absorption6, maximum % by volume | ASTM C272 | 0.3 | 0.3 | 0.3 | 0.3 |
Water Vapor Permeance7, maximum perm (ng/Pa•s•m2) | ASTM E96 | 1.5 (86) | 1.1 (63) | 1.1 (63) | 1.1 (63) |
Dimensional Stability, maximum % linear change | ASTM D2126 | 2.0 | 2.0 | 2.0 | 2.0 |
Flame Spread8, 9 | ASTM E84 | 10 | 10 | 10 | 10 |
Smoke Developed8, 9 | ASTM E84 | 175 | 175 | 175 | 175 |
Oxygen Index8, minimum % by volume | ASTM D2863 | 24 | 24 | 24 | 24 |
| Service Temperature, maximum °F (°C) | - | 165 | 165 (74) | 165 (74) | 165 |
Linear Coefficient of Thermal Expansion, | ASTM E228 | 3.5 x 10-5 (6.3 x 10-5) | |||
1. Properties shown are representative values for 1" thick material, unless otherwise specified.
2. Modified as required to meet ASTM C578.
3. R means the resistance to heat flow; the higher the value, the greater the insulation power. This insulation must be installed properly to get the marked R-value. Follow the manufacturer’s instructions carefully. If a manufacturer’s fact sheet is not provided with the material shipment, request this and review it carefully. R-values vary depending on many factors including the mean temperature at which the test is conducted, and the age of the sample at the time of testing. Because rigid foam plastic insulation products are not all aged in accordance with the same standards, it is useful to publish comparison R-value data. The R-value for FOAMULAR® NGX® XPS Insulation is provided from testing at mean temperatures of: -4°C (25oF), 4.4°C (40°F), and 24°C (75°F) and aging techniques of 180-day real time aged (as mandated by ASTM C578) and accelerated aging “Long-Term Thermal Resistance” (LTTR) per CAN/ULC S770-03. The R-value at 180-day real-time age and 75°F mean temperature is commonly used to compare products and is the value printed on the product.
4. Values at yield or 5% deflection, whichever occurs first.
5. Properties shown are representative values for 2" thick material, unless otherwise specified. Value at yield or 5%, whichever occurs first.
6. Data ranges from 0.00 to value shown due to the level of precision of the test method.
7. Water vapor permeance decreases as thickness increases.
8. These laboratory tests are not intended to describe the hazards presented by this material under actual fire conditions.
9. Data from Underwriters Laboratories Inc.® classified. See Classification Certificate U-197.
