07/19/2026
Before the exterior finish goes on, vertical furring strips—also called rainscreen strapping—are installed over the weather-resistive barrier. These strips create a small ventilated cavity behind the exterior wall, giving any moisture that gets past the finish a path to drain and allowing the assembly to dry. They also provide a straight, secure fastening surface for a range of finishes, including vinyl or composite siding, wood siding, fibre-cement panels or lap siding, engineered wood, metal cladding, and certain panel-style cladding systems. The result is a cleaner installation with better airflow, moisture management, and long-term protection for the home.