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How to Install CedAir-Mat® for Optimal Roof Ventilation: A Step-by-Step Guide

Posted by Spycor Building on Aug 4th 2025

When it comes to protecting your roof from moisture damage, proper ventilation and drainage are critical. CedAir-Mat®, manufactured by Advanced Building Products, is a high-performance ventilation mat designed specifically for cedar and metal roof construction. Its 90% open mesh structure creates an airspace that promotes multidirectional airflow, preventing moisture buildup that can lead to mold, mildew, corrosion, and roofing material deterioration.

In this comprehensive guide, we’ll walk you through the CedAir-Mat® installation process, highlight its key benefits, and provide resources to help you achieve a durable, long-lasting roof. Whether you’re a contractor or a homeowner, this guide is your go-to resource for mastering roof ventilation with CedAir-Mat®.

Why Choose CedAir-Mat® for Your Roofing Project?

CedAir-Mat® stands out as a premier choice for residential and commercial roofing applications due to its unique design and performance. Here’s why it’s a must-have for your next project:

  • Superior Ventilation: The 90% open mesh creates an airspace that allows moisture to drain and promotes airflow in all directions, reducing the risk of mold, mildew, and corrosion.
  • Durability: Made from a thin nylon matrix, CedAir-Mat® is lightweight yet boasts the best compression strength in the market.
  • Flexibility: Conforms to any contoured roof surface, making it ideal for cedar, metal, tile, and other roofing materials.
  • Enhanced Roof Longevity: Prolongs the life of your roof structure and membrane by mitigating moisture-related damage.
  • Thermal Break: Maintains a thermal barrier between roofing and sheathing, improving energy efficiency.
  • Class A Fire Rating: Meets ASTM E84 standards for fire safety.
  • UV Exposure: Can withstand up to 60 days of UV exposure during installation.

Step-by-Step Guide to Installing CedAir-Mat®

Step-by-Step Guide to Installing CedAir-Mat®

Follow these detailed instructions to ensure a proper installation of CedAir-Mat® for optimal roof ventilation and drainage. 

Materials Needed

  • CedAir-Mat® (0.40” thickness, 39” x 61.5’ roll, 200 sq. ft. per roll)
  • Plywood roof sheathing
  • Roofing felt or ice and water shield membrane
  • Metal edge flashing or drip edge
  • Utility knife or scissors
  • Fasteners (nails or tacks)
  • Cedar shingles, metal panels, or other roofing materials

For a detailed contractor guide, download the Roof Drainage & Ventilation Mat
Installation Guide.
DOWNLOAD HERE

Download the CedAir-Mat® Brochure
DOWNLOAD HERE

Why CedAir-Mat® is a Game-Changer for Roof Ventilation

CedAir-Mat® offers unmatched performance in roof ventilation, making it a top choice for contractors and homeowners alike. Its ability to reduce sound transmission, conform to complex roof shapes, and provide 75% more airflow than competing products sets it apart. By incorporating CedAir-Mat® into your roofing project, you’re investing in a solution that enhances durability, energy efficiency, and long-term protection.

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