A comprehensive approach to water management prevents
water from reaching the sheathing or framing.á Primary water management strategies include
water-shedding characteristics that include overhangs and exterior cladding.á Secondary (redundant) water management
usually employs a weather
resistive barrier to protect the sheathing and framing from moisture
damage.
A weather resistive barrier is a drainage plane that
allows water that has penetrated past the cladding to drain away from the wall system.