Firestopping & Fireblocking Product Guidance

Use the red-to-green product guidance below to select safer product types by avoiding those in red and preferring yellow and green, which are safer for occupants, fenceline communities, and workers.

When choosing firestopping systems:

• Prefer assemblies that allow for the use of mineral-based caulks, mortars, and pillows.
• Prefer products, like firestop pillows, that do not need to be replaced when accessing through penetrations.
• Where joint sealants are necessary, prefer acrylic products over silicones and polyurethanes.