Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter 7 - Fire and Smoke Protection Features
Section 717 - CONCEALED SPACES
Subsection 717.5 - Combustible materials in concealed spaces in Type I or II construction
Current through Register 1531, September 27, 2024
Combustible materials shall not be permitted in concealed spaces of buildings of Type I or II construction.
Exceptions:
1. Combustible materials in accordance with Section 603.
2. Combustible materials exposed within plenums complying with Section 602 of the International Mechanical Code.
3. Class A interior finish materials classified in accordance with Section 803.
4. Combustible piping within partitions or shaft enclosures installed in accordance with the provisions of this code.
5. Combustible piping within concealed ceiling spaces installed in accordance with the International Mechanical Code and the International Plumbing Code.
6. Combustible insulation and covering on pipe and tubing, installed in concealed spaces other than plenums, complying with Section 719.7.