How to Read and Apply System Listings for Recessed Box Membrane Protection

Whether you’re a plan reviewer, installer, or inspector, in a short and efficient 20 minutes, you will benefit from learning:
- How to make sense of the UL “wall opening protective material” listings that go on for multiple pages long for each manufacturer
- Distinguish between the common information that applies to all installation permutations, and the details for how to protect specific box configurations
- How to relate the information in the listing to your field application
- How to know if the boxes are allowed to be back-to-back
- Details not to miss