Product Overview
Johns Manville R-14.4 (20 PSI) Fiberglass Face Polyiso Roof Decking Insulation
Discover the Johns Manville ValuTherm™ roof insulation board, designed to offer superior thermal performance, light-weight handling, and excellent moisture resistance. This 2-1/2 inch thick insulation board measures 4 feet by 8 feet, ensuring easy installation and improved energy efficiency for various roofing applications. Featuring a closed-cell polyisocyanurate foam core bonded to universal fiberglass-reinforced facers, it’s perfect for metal, nailable, and non-nailable roof decks, and is compatible with built-up, modified bitumen, and single-ply membrane roofing systems.
Key Features
- High Thermal Performance: Utilizes an eco-friendly pentane hydrocarbon blowing agent to enhance insulation efficiency.
- Universal Compatibility: Equipped with a universal facer that is compatible with BUR, modified bitumen, and single-ply membrane systems.
- Regulatory Compliance: Meets the standards of the EPA, CEPA, and Montreal Protocol, and complies with the Clean Air Act Amendments of 1990.
- Precision Dimensions: Offers nominal dimensions ranging from 47.75″ to 48.25″ wide and 95.75″ to 96.25″ long.
- Durability and Resistance: Resistant to moisture, temperature, and rot, and certified by FM™ Standards 4450/4470 and UL™ Standards 790, 263, and 1256.
Please check the Product Data Sheet Here
Specifications
| Specification | Details |
|---|---|
| Product Type | Polyisocyanurate Insulation |
| Overall Width | 4 feet |
| Insulation Material | Polyisocyanurate |
| Overall Length | 8 feet |
| R-Value | 14.4 |
| Thickness | 2-1/2 inches |
| Coverage Area | 32 square feet |
| Minimum Compressive Strength | 20 PSI |
| Special Features | Moisture, Temperature, Rot Resistant, Various Standards Approvals |
| Recommended Environment | Interior & Exterior |
| Listing Agency Standards | Energy Star Qualified |
| Shipping Weight | 14.0 lbs |
Frequently Asked Questions (FAQ)
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What are the benefits of using this insulation for roofing?
- This insulation excels in providing high thermal efficiency, is lightweight for easier installation, and boasts excellent moisture resistance, making it a versatile choice for various roofing systems.
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Is this product environmentally friendly?
- Yes, the insulation employs an environmentally compliant pentane hydrocarbon blowing agent and adheres to environmental standards set by the EPA, CEPA, and Montreal Protocol.
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Can this insulation be utilized in both interior and exterior settings?
- Absolutely, it is engineered for use across both interior and exterior applications, offering flexible installation options.
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What are the approval and compliance standards for this insulation?
- The product is certified under FM™ Standards 4450/4470, UL™ Standards 790, 263, and 1256, and meets CAN/ULC S704, Type 2 & 3, Class 3 specifications.
