989 6th Avenue Manhattan

Located midtown in the Garment district between the Empire State Building and Bryant Park, 989 6^th Avenue is a 240m tall tower designed by C3D Architecture for residential and commercial use. The cast concrete super-structure is predominately wrapped within a sleek glass curtain wall façade and features staggered levels, open terraces and an eye-catching multi-cylindrical podium that provides an ultra-modern contrast to the Classical Revival design of the neighbouring Haier Building.

Siderise CW-FS120 Firestop was specified to provide floor-to-floor compartmentation, protecting the void space at the perimeter joint between the edge of the floor slab and the internal surface of the external wall assembly. It offers a third-party certified FT rating of up to three hours (resistance to fire spread and temperature rise on the non-fire side) when tested to ASTM E2307 as part of the CW Perimeter Barrier System. It has also been independently tested to ensure L-rating compliance with the International Building Code (IBC). Additionally, its unique vertical-fibre stonewool Lamella core was specifically engineered to stand up to the demands of building and curtain wall movement on high rise towers, boasting a 60-year design life.

This project is ongoing, therefore the case study will be updated at project completion.