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

Frequently Asked Questions (FAQ)

• 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.

• 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.

• 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.

• 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.