Large duct penetration

Concrete or masonry walls with a minimum thickness less than or equal to 8 in. Continuing training and educational efforts are leading to a heightened awareness of the importance of proper firestopping and its impact on improving both safety and property protection. Many HVAC ducts penetrating fire-rated walls are externally insulated with light-density glass fiber duct wrap, whether for energy conservation, efficiency increases, condensation control, or even sound attenuation. The alpha components identify the type of assembly being penetrated and the numeric component identifies the type of penetrating item. The annular space between multiple penetrating items within a rectangular opening is determined by measuring the closest point of one penetrating item to the closest point of the adjacent penetrating item. Another contractor then adds equipment to the support and fastens it down with screws or lag bolts, penetrating the top of the cap. Also, many of the larger firestopping manufacturers have highly qualified technical personnel who can explain the subtle nuances of firestopping, as well as skilled field personnel who can conduct more specific training.
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Pipe Portal Systems

Caulking is applied around the top of the flashing above the clamp. Groupings of penetrations, including any combination of items listed above. The development of building code alternative means and methods or working with a manufacturer for an engineered firestop solution takes time and planning. Another major concern is weight. Please contact your Metraflex representatives. Table 1 shows a list of common electrical penetrations along with a list of typical firestopping types. The firestop manufacturer may do its own testing to provide data showing that the engineered solution is viable.
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USG Design Studio | Shaft Wall - Wall Penetration - Download Details

The development of building code alternative means and methods or working with a manufacturer for an engineered firestop solution takes time and planning. Products Product Range Why fabric ducts? But roofers are not miracle workers. Before any work takes place, all proposed roof penetration details should be submitted to the manufacturer for approval. The specifications for materials in a firestop system and the assembly of the materials are details that directly relate to the established ratings. Pipe penetration seal is a reusable, permanent, water-tight rubber seal The MetraSeal Pipe Wall Penetration Seal quickly creates a mechanical water-tight seal, filling the space around any round pipe including:
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When installed in conjunction with restraining steel, SSW Wrap Strips are able to collapse non-metallic piping of up to 12 in. As shown in Table 1, the available firestop systems for cable tray differ from those for conduit in that cable tray allows for the use of firestopping pillows. FP Intumescent Firestop Plug. On larger ducts, even the most aggressive intumescent firestop products are incapable of completely filling the gaps that result from deflection of the metal if retaining angles are not used. Microelectronic manufacturing plants use a variety of hazardous production materials to which the firestop could be exposed.
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