What were the original materials used for water resistive barriers?

The correct choice reflects the historical use of asphalt-saturated Kraft paper and asphalt felt as initial materials for water resistive barriers. These materials were chosen for their properties that help prevent water intrusion while allowing moisture vapor within the wall assembly to escape, thus maintaining the integrity of the building envelope.

Asphalt-saturated Kraft paper provides a good balance of moisture resistance and breathability. It has the ability to adhere well to surfaces and creates a continuous layer when properly installed, serving as an effective barrier against water. Asphalt felt, similarly, has been used in roofing and wall applications due to its durability and resistance to water damage.

The other options consist of materials that may not have been traditionally used as water resistive barriers. For instance, fiberglass mesh and plastic sheeting tend to be more modern adaptations that came into play later, often in conjunction with other systems. Wood fiberboard and polyethylene, while having specific applications, do not share the same historical significance in the context of water resistive barriers. Lastly, vinyl sheets and tar paper may have been utilized in other applications, but they don't represent the foundational materials used for water resistive barriers originally. Hence, asphalt-saturated Kraft paper and asphalt felt stand out as the correct historical choice.