1. Carefully protect all nearby surfaces not intended for treatment. Immediately clean up incidental contact using mineral spirits or similar solvent. 
  2. Always use Joint & Seam Filler, FastFlash and AirDam where required. Do not substitute. 
  3. Prepare all rough openings with Joint & Seam Filler and/or FastFlash. Allow to skin over. Overlap Cat 5 onto FastFlash by 2 inches or more. A slightly diagonal vertical application stroke provides best coverage. 
  4. If errant nails or fasteners that do not engage with studs are removed, fill the holes with additional Joint & Seam Filler to ensure the continuity of the air and water-resistive barrier.

Got more questions about our R-Guard Cat 5 primary air barrier? Visit the Cat 5 product page, see the Product Data Sheet, or give us a call at 1-800-255-4255. We're real people who answer the phone from Monday-Friday, 8 a.m.-5 p.m., Central Standard Time.  

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