Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 390

2. Permanent lumber storage, operating under a permit from appropriate government agencies, shall be surrounded with a suitable fence at least one and eight tenths meters (1.8 m) in height, unless storage is within a building. B. Wood Processing and Woodworking Facilities 1. Building constructions shall be in accordance with the National Building Code (NBC) and other accepted international standards. 2. Processing and wood working facilities shall be properly compartmentalized and protected through fire walls and fire barriers to prevent spread of fire and explosions or both between sections of the facility with different hazards in accordance with Section 10.2.6.8 of this IRR. 3. Fire protection features shall include separation of adjacent building by open space, or separation of adjoining building areas by firewalls and fire partitions, or draft curtain boards as well as elimination of unnecessary opening through floors. 4. Raw material storage, finish product storage, manufacturing areas, non-manufacturing areas and high hazard occupancies shall be considered as different hazards. 5. Walls, floor, doors and openings shall comply with the following: a. If walls are erected as firewalls between adjoining buildings, then they shall be designed for a minimum of four (4)-hour fire resistance rating. b. Interior walls erected as fire barrier between adjoining areas shall be designed for a minimum of one (1)-hour fire resistance rating. c. All penetrations of floors and walls shall be provided with firestopping having a fire resistance rating equal to that of the floor or wall. d. Piping and ductwork shall not be embedded in firewalls. e. Interior walls erected to isolate dust explosion hazards shall be designed for sufficient explosion resistance to preclude damage to these walls before the explosion pressure can be safely vented to the outside. f. Where there are openings in fire-rated assemblies, including conveyor and chute openings, such shall be protected by approved, automatic-closing fire doors or fire dampers that have a fire resistance rating equivalent to the fire-rated assembly. 374