Kuwait International Airport / State of Kuwait in Western Asia
Tracking LEED Gold
Spinnaker Services: Consulting and Energy Modeling
The Spinnaker Group is providing LEED Consulting and Energy Modeling services for the new Kuwait International Airport, which is planned to significantly increase capacity and establish a new regional air hub in the Gulf. The project’s strategic aims will be matched by a state-of-the-art terminal building, which will provide the highest levels of comfort for passengers and will set a new environmental benchmark for airport buildings. Its design is rooted in a sense of place, as well as responsive to the climate -- one of the hottest inhabited environments on earth -- and inspired by local forms and materials.
The terminal has a trefoil plan, comprising three symmetrical wings of departure gates. Each façade spans 1.2 kilometers and all extend from a dramatic 25-metre-high central space. The terminal balances the enclosure of this vast area with a design that is highly legible at a human scale -- for simplicity and ease of use, there are few level changes.
The massive project is targeting LEED Gold, with a goal to be one of the largest passenger terminals in the world to attain this level of environmental accreditation.
The strategy for achieving LEED Certification on Terminal 2 is through a "whole building approach", with the design aiming to maximize energy efficiency, water savings, waste reduction and use of sustainable materials, as well as optimize the health and well-being of the terminal’s occupants and visitors.
The overall project site has been designed to reduce its impact on the environment through minimizing “heat island effect” -- an increase in temperature caused by built-up urban development. This is achieved by providing large areas of natural landscaping planted with native and adaptive plan species suited to the Kuwait desert climate, and incorporating reflective exterior cladding materials.
The terminal building has been designed with an efficient thermal envelope which includes a highly insulated roof structure providing thermal mass and high specification glazed façade shaded by a 60m roof overhang. Natural daylight is maximized through the 8,000 skylights incorporated into the roof design, and energy consumption is optimized through energy efficient building systems from lighting to air conditioning. The concrete structure provides thermal mass and the roof incorporates a large expanse of photovoltaic panels to harvest solar energy. By incorporating this large expanse of photovoltaic panels on the roof, the project aims to generate at least 9% of total energy costs.
Overall potable water consumption will be reduced by 45% through use of low-flow plumbing fixtures and reusing grey water collected from wash hand basins for WC flushing. Additionally, landscaped planting on the terminal site will be irrigated by reclaimed rainwater.
Materials on Terminal 2 have been specified with a focus on sustainable construction practices. Wherever possible, materials have been selected to contain recycled or rapidly renewable materials from regional suppliers, thereby reducing the use of infinite resources and minimizing transportation distances.
To ensure a healthy indoor environment, construction materials such as paints, sealants and adhesives have also been specified to have low level VOCs (volatile organic compounds), whilst the air conditioning systems have been designed for a 30% increase in outdoor air ventilation rates. Lastly, construction sites typically generate large quantities of solid waste, adding to the burden of increasingly scarce landfill sites, and causing soil, water and air pollution. At the Terminal 2 construction site, the goal is to divert at least 75% of waste generated onsite away from the landfill through reusing and recycling construction waste.
The anticipated completion date for this 7.6 million sf project is August 2022.