Insulation Board

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Insulation Board

What is Insulation Board?

Rigid panels made from various insulating materials such as foam, fiberglass, or mineral wool, designed to provide continuous thermal protection, reduce thermal bridging, and improve energy efficiency in walls, roofs, and foundations while offering structural support and moisture resistance.

Description

Insulation board is rigid panels made from various insulating materials such as foam, fiberglass, or mineral wool, designed to provide continuous thermal protection, reduce thermal bridging, and improve energy efficiency in walls, roofs, and foundations while offering structural support and moisture resistance. These versatile building components offer superior thermal performance compared to cavity insulation alone, creating continuous insulation layers that eliminate thermal bridges and improve overall building envelope performance. Insulation boards are essential for meeting modern energy codes and achieving high-performance building standards.

The primary purposes include providing continuous insulation to eliminate thermal bridging, improving overall building thermal performance and energy efficiency, offering structural support and dimensional stability, providing moisture resistance and vapor control, simplifying installation compared to multiple insulation layers, meeting building code requirements for continuous insulation, and contributing to sustainable building practices.

Types of insulation boards encompass expanded polystyrene (EPS) boards for cost-effective applications, extruded polystyrene (XPS) boards for moisture resistance, polyisocyanurate (polyiso) boards for high R-values, mineral wool boards for fire resistance, fiberglass boards f

FAQs

  • What is insulation board?

    Insulation board is rigid panels made from various insulating materials like foam, fiberglass, or mineral wool, designed to provide continuous thermal protection and reduce thermal bridging in building envelopes.

  • What are the main types of insulation boards?

    Main types include expanded polystyrene (EPS), extruded polystyrene (XPS), polyisocyanurate (polyiso), mineral wool, fiberglass, and composite boards, each with specific performance characteristics.

  • What R-values do insulation boards provide?

    R-values vary by type: EPS (R-3.6–4.2 per inch), XPS (R-5.0 per inch), polyiso (R-6.0–8.0 per inch), mineral wool (R-3.7–4.2 per inch), and fiberglass (R-3.8–4.3 per inch).

  • Where are insulation boards typically used?

    They’re used for exterior wall sheathing, roof insulation, foundation walls, interior thermal bridging reduction, and specialty applications requiring continuous insulation.

  • How are insulation boards installed?

    Installation methods include mechanical fastening with screws and plates, adhesive attachment, integrated systems, proper joint sealing, and coordination with air and vapor barriers.

  • What are the benefits of continuous insulation?

    Benefits include thermal bridge elimination, improved overall R-values, reduced energy consumption, enhanced comfort, and compliance with modern energy codes.

  • Do insulation boards provide structural support?

    Some insulation boards provide structural support and dimensional stability, but load-bearing capacity varies by type and application, requiring proper engineering evaluation.

Fun Fact

Fun Fact: The first rigid insulation boards were made from cork in the early 1900s and were used primarily in cold storage facilities! Modern polyiso insulation boards can achieve R-values up to R-8 per inch, making them among the most efficient insulation materials available. Some insulation boards are now made with recycled content, with EPS boards containing up to 15% recycled material. Interestingly, continuous insulation with rigid boards can improve a wall’s thermal performance by 20-40% compared to cavity insulation alone!

CSI Code

07 21 13

NAHB Code

720