Great Glass House Holds Mediterranean Treasures at the National Botanic Garden of Wales

by , 08/25/14
filed under: Architecture, Gallery

great glass house, glass house, greenhouse, foster + partners, foster and partners, green architecture, sustainable architecture, england, garden of wales, energy reduction, green design, glass hill

Located in the hills overlooking Tywi Valley, the Glass House is part of the Garden of Wales Botanical Gardens in the UK. Despite being made of glass, the elliptical building blends into the surrounding grassy landscape quite nicely. Equipped with an aluminium glazing system and tubular-steel supporting structure that minimize materials while maximizing light transmission, the clear roof measures 99 by 55 meters and rests on twenty-four arches. Since the area can be quite cold in the winter, the building’s concrete substructure is banked to the north to provide protection from northerly winds. It’s also partially hidden by a blanket of turf so that three of the entrances appear to be cut discreetly into the hillside.

The Glass House has been fitted with an intelligent computer-controlled system that optimizes energy usage by monitoring outside and inside conditions closely. The system can open glazing panels in the roof to achieve the best levels of temperature, humidity and air movement. Most of the heat needed for the greenhouse comes from a biomass boiler which is a lot cleaner compared to fossil fuels. And because the plants that are burnt absorb as much carbon dioxide during their lifetime as they release during combustion, the carbon dioxide cycle is broadly neutral. The Glass House also collects rainwater as grey water for irrigation and toilet flushing.

+ Foster + Partners

+ The Great Glass House

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