The attic and ceiling are very important structural elements for vertical ventilation operations and often overlooked during training.
The Attic / Ceiling System adjusts with the roof pitch, so that you have a flat ceiling below the roof.
Firefighters can use tools to reach down through the attic space and breach or simulate breaching the ceiling.
You can place sheetrock on the ceiling joists or OSB sheeting. When using OSB, firefighters can simulate breaking sheetrock by striking the OSB sheeting.
The Safety chains provide perimeter fall protection. The Attic / Ceiling System offers fall protection if someone were to accidentally step through a cut vent hole.
You can use OSB to keep the debris from falling onto the unit below and make clean up easier when training is completed.
The ceiling also provides a platform to stand on when stripping and re-sheeting roof, when you use OSB.
The Attic / Ceiling option can be added to a mobile unit at a later date, if desired, and is standard on a stationary unit.