A NetZero Solution to Extensive Laundry Ducts

During construction phase 2, the team faced a challenge with lengthy laundry exhaust lines. Per building code M1502.4.5.1, exhaust ducts for clothes dryers should not exceed 35 feet from the dryer connection to the outlet terminal, excluding the transition duct. To comply, ducts from the 2nd, 3rd, and 4th floors needed a helpful 'boost' to meet this standard and avoid fines.

A DBF 4XL in each of the 68 laundry lines was installed. Otherwise known as a duct-boosting fan for 4-inch-diameter ductwork, this product was perfect to help boost the exhaust air from the dryers to the exterior roof of the building. Additionally, the DBF 4XL helps keep the laundry lines free of lint—avoiding clogs and the build-up of lint, which is the most common factor of residential dryer fires.