Type-55 FR vs. Type-1200 FR vs. Type-90 FR: Choosing the Best Griffolyn® Vapor Retarder
Choosing the right fire-retardant vapor retarder is crucial for building safety and efficiency. This guide compares three popular Griffolyn® options: Type-55 FR, Type-1200 FR, and Type-90 FR.

Here's a breakdown of where each product excels:
- Griffolyn® Type-55 FR: This is your go-to option for general fire safety needs in walls, ceilings, and other standard applications. It offers a good balance of affordability, strength, and fire retardancy. Consider it for:
- Basements
- Interior partitions
- Griffolyn® Type-1200 FR: For superior strength and fire safety in demanding locations, choose Type-1200 FR. It's ideal for under slab applications or roofs where additional strength is required. This product goes beyond fire retardancy and qualifies as a Class 1 building product, potentially impacting building code compliance. It's also suitable for:
- Foundations
- Tunnels
- Parking garages
- Griffolyn® Type-90 FR: When dealing with extreme temperature fluctuations or requiring the absolute lowest moisture permeability, select Type-90 FR. This 5-ply reinforced option offers the best performance in these specific scenarios, making it suitable for cold storage facilities or metal buildings. Additional applications include:
- HVAC systems
- Cathedral ceilings
- Controlled environments (e.g., grow rooms)
Remember: Consider your specific needs when choosing a vapor retarder. If you prioritize affordability and basic fire safety for standard applications, Type-55 FR is a solid choice. For superior strength, fire safety compliance, or extreme temperature variations, consider Type-1200 FR or Type-90 FR respectively.
