The Hyatt Hotel – Aerocity is built using a fully unitized façade design, drained and pressure-equalized curtain wall system. Its close proximity to the airport requires runway facing facades to achieve an acoustic rating of 52dB STC. The solution required a vision panel composed of an external DGU, 150m airgap and internal laminated glass. Acoustic test to ASTM E90 and classification according to ASTM E413 confirmed a sound attenuation of 54 dB STC. The Unitized Curtain Wall panels fabricated at a maximum size of 4.4m wide and 3.7m weighing over a ton were fabricated in UAE and shipped to India. Design was a key challenge amongst other major considerations such as logistics and installation.
Background
This luxury 7-storey hotel is the premier property in the Aerocity development located near New Delhi’s Indira Gandhi International Airport. The project sits on a 1.2-million-square-foot development and boasts a total 585 guest rooms, serviced apartments and townhouses, a large central courtyard, and banquet and meeting rooms. The project has sought India Green Building Council (IGBC) Leadership in Energy and Environmental Design (LEED) certification.
Solution
nCLO3URE’s Engineers were involved with Belgium Aluminium – Al Fara’a Group based in Al Ain and Abu Dhabi Office. The team led the structural, thermal engineering and performance compliance efforts for all the façade systems.
Hotel and Apartment Towers
The typical floors of the hotel and serviced apartments are enclosed by a unitized male-female system with conventional structural silicone glazed heat- treated glass with specified acoustic performance. Double glazing vision units have clear substrates coated with sputtered vacuum deposition (soft-coat) low-e. Ventilated spandrel panels are conventional structural glazed monolithic heat-treated spandrel glass matching the appearance of the vision glass, with sealed and stiffened 3mm thick aluminium backpan coated with PVF2 2-coat system and foiled mineral wool thermal insulation. An overall panel U-value of 2.5 W/m2-K was specified. Static and dynamic water infiltration tests to ASTM E 331 and AAMA 501.1 were set to meet 1,000 Pa.
Atrium and Podium
Long-span semi-unitized curtain wall system at Atrium Lobby/Entrances, Podium, Ballroom Entrance at Courtyard, supported by aluminium-cladded steel mullions.
Glass Canopy at Hotel Lobby
Reversed point supported glass canopy with laminated opaque interlayer glass panels supported by cantilever AESS.
