Exterior Insulation Air Barrier System (EIABS)

Illustration Source: CHBA Manual, Fig. 8.10, Pg.120

House Wrap Air Barrier System (HWABS)

Illustration Source: CHBA Manual, Fig. 8.11, Pg.125

Exterior air barrier systems can be made of rigid or flexible materials, depending on the system used.

Rigid: Exterior Insulation Air Barrier System (EIABS)

Flexible: House Wrap Air Barrier System (HWABS)