Owens Corning® R-1 (25 PSI) FOAMULAR® Extruded Polystyrene Foam Fanfold Underlayment Insulation
Product Overview The Owens Corning® R-1 (25 PSI) FOAMULAR® Extruded Polystyrene Foam Fanfold Underlayment Insulation is expertly engineered to improve your home’s energy efficiency while offering strong thermal resistance and durability. This 1/4″ x 48″ x 50′ square edge insulation is ideal for lowering heating and cooling costs. It provides a smooth, even surface for siding installation and is perforated to allow moisture to escape, ensuring long-lasting protection and performance against environmental factors.
Key Features
- High Thermal Resistance: Constructed from R-1 FOAMULAR® extruded polystyrene foam, it provides effective thermal insulation.
- Moisture Management: The perforated design facilitates the escape of excess moisture, helping to prevent mold and mildew.
- Ease of Installation: The fanfold configuration with folded hinges at 24″ intervals simplifies the on-site application process.
- Strength and Reliability: Built to last with a minimum compressive strength of 25 PSI.
- Smooth Nailing Surface: Offers a flat surface for quick and efficient siding installation.
- Warranty: Backed by a limited lifetime warranty, ensuring long-term reliability.
Please check the Product Data Sheet Here
Specifications
| Specification | Details |
|---|---|
| Product Type | Extruded Polystyrene Insulation |
| Insulation Material | Extruded Polystyrene |
| Overall Width | 3.99 feet |
| Overall Length | 50 feet |
| R-Value | 1.0 |
| Thickness | 1/4 inch |
| Coverage Area | 200 square feet |
| Minimum Compressive Strength | 25 PSI |
| Listing Agency Standards | ASTM C272, ASTM C518, ASTM D1621 (Modified), ASTM E84, ASTM E96, UL 723 |
| Shipping Dimensions | 48.00 H x 24.00 W x 6.00 D |
| Shipping Weight | 9.0 lbs |
Frequently Asked Questions (FAQ)
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What is the primary function of this underlayment insulation?
- This product is designed to provide a smooth nailing surface for siding installation while delivering excellent thermal resistance and moisture management for exterior walls.
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How does the perforated design enhance the insulation?
- The perforations allow excess moisture to escape, reducing the likelihood of mold and mildew, thus extending the insulation’s lifespan.
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Can this insulation be used for interior applications?
- While primarily intended for exterior use, it can be employed in interior applications where additional thermal resistance is needed, as long as it complies with building code requirements.
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What does the R-1 value indicate?
- The R-value measures the insulation’s resistance to heat flow. An R-1 value represents basic thermal resistance, suitable for situations where additional insulation layers are used or not necessary.
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Is this product environmentally friendly?
- Yes, FOAMULAR® XPS insulation contains a minimum of 20% recycled content and is GREENGUARD Gold certified, underscoring its commitment to sustainability while maintaining high performance.
