Which component is designed to reduce sound transmission and prevent water leaks on package heat pumps installed on roofs?

The component designed to reduce sound transmission and prevent water leaks on package heat pumps installed on roofs is the curb gasket. The curb gasket serves a dual purpose; it creates a seal between the heat pump and the roof curb, which is essential to maintain the integrity of the installation. By effectively sealing this connection, the curb gasket minimizes the potential for water infiltration that could lead to leaks and water damage.

Additionally, the curb gasket helps to dampen vibrations and noise generated by the operation of the heat pump. This is particularly important in rooftop applications where sound transmission can be a concern for occupants of the building below. The presence of the gasket helps to absorb and mitigate these vibrations and noises, providing a quieter operation compared to a direct metal-to-metal contact that would transmit sound more effectively.

The other choices do not specifically target both reducing sound transmission and preventing leaks in the same way that a curb gasket does. Vibration pads may assist in isolating some vibrations but do not provide a seal against water. Insulation material is primarily focused on thermal performance and does not address sound transmission or water leaks directly. Drain pans are used to collect condensation and direct it away but are not designed for sealing or sound reduction. The curb gasket effectively fulfills the necessary functions for rooftop-mounted