What may be necessary when positioning the aerial apparatus on thin-skinned paved surfaces?

When positioning the aerial apparatus on thin-skinned paved surfaces, using additional cribbing is often necessary to distribute the weight of the apparatus and prevent damage to the pavement. Thin-skinned surfaces can lack the strength to support heavy vehicles, especially under the concentrated load of an aerial device. By employing cribbing, the weight is spread over a larger area, which reduces the risk of causing cracks or failure in the pavement beneath the tires.

This practice not only aids in maintaining the integrity of the surface but also enhances the overall stability of the apparatus during operation. Proper stabilization is critical to ensure the safety of both the crew and the equipment when working at heights or performing dynamic operations with the aerial device.