1225 Lofts is an eight story midrise residential building located in the Logan Circle neighborhood in NW, Washington, DC. The building is constructed of conventionally reinforced concrete slabs supported by conventionally reinforced beams, columns and perimeter foundation walls. The sub-grade portions of the building contain various utility rooms, laundry rooms, storage and parking garage and were subject to water intrusion.
TCE & Associates performed a condition assessment of the subgrade rooms to determine the extent of structural damage and to determine the sources of water intrusion. The survey revealed prolonged water leakage into the subgrade pump room and oil tank room at the south side of the building causing deterioration of the vaulted elevated concrete slab, reinforced concrete beams and water damage to sensitive equipment. TCE developed a repair program to address water intrusion and repair structural members. The scope of work included shoring and protection, removing concrete topping slab and existing membrane, perform repairs to the structural concrete slab, install new hot applied rubberized waterproofing system, install through-wall flashings at base of the facade, apply urethane deck coating on the elevated landing and stairs, inject leaking foundation wall cracks and place new topping components on the new membrane. Repairs were completed in fall of 2016.
