The Minnesota State Fire Marshal division’s (SFM) Fire Protection Team has been asked to consider using the Tyco Specific Application Attic® Sprinkler in applications other than attic spaces. Specifically, the application would use Model BB (Back-to-Back) Attic® sprinklers under a “cathedral” ceiling open to the area below, which is classified as a light hazard occupancy. The sprinklers would be installed exposed below the vaulted ceiling.

The specific question involved the proposed installation in a church sanctuary. Although not specifically listed for this type of installation, the manufacturer had suggested in the past that this might be an appropriate “alternate use.” The manufacturer has since reconsidered its “alternate use” position.