Exception: Replacement glazing in hazardous locations shall comply with 302.2.
Exception: In buildings of Group R-2, where the egress system is fully sprinklered, existing transoms in corridors and other fire rated walls may be maintained if fixed in the closed position. A sprinkler head shall be installed on each side of the transom. If the above sprinkler system is not otherwise required, it may be domestically supplied provided that it is properly engineered to the satisfaction of the authority having jurisdiction.
Exceptions:
Where existing dead-end corridors of greater length are permitted by NFPA 101, Life Safety Code, for existing buildings.
In other than Group A, the maximum length of an existing dead-end corridor shall be 50 feet in buildings equipped throughout with an automatic sprinkler system installed in accordance with Fire Safety Code.
Exception: Finishes in exit ways shall have a flame-spread classification of Class C or better in accordance with NFPA 101, Life Safety Code for new construction. Existing nonconforming materials shall be surfaced with an approved fire-retardant paint or finish unless the building is equipped throughout with an automatic fire sprinkler system installed in accordance with NFPA 13, Standard for Installation of Sprinkler Systems.
Exception: Transoms conforming to 904.4.2 shall be accepted.
Exception: Existing nonconforming materials need not be surfaced with an approved fire-retardant paint or finish when the building is equipped throughout with an automatic fire suppression system installed in accordance with NFPA 13, and the nonconforming materials can be substantiated as historical in character.
NOTE: Where the section is followed by the letter "B", "F", or "O", the following meaning shall apply:
"B" This means that the Building Official or the Plumbing, Mechanical or Electrical Inspector shall review the plans, issue the permit, inspect the installation, and approve the final certificate.
"F" This means that the Fire Official shall review the plans for approval, the Fire Official and/or the Building Official inspects the installation, and the Fire Official observes the final test and approves the final installation. The Building Official shall issue the permits.
"O" This would indicate another State agency approval and inspection is needed. An explanation will indicate the agency and approvals needed.
510 R.I. Code R. 510-RICR-00-00-20.9