Super energy-efficient building exceeds client’s expectations

Posted Září 6th, 2011 by Billabongboardshortscloths

In 2007, the Wine Society decided it needed a fourth wine warehouse at its Stevenage site and appointed Vincent and Gorbing to lead its design team. With increasing energy costs a major concern, the Society wanted to avoid the additional burden that a new building would impose on its running costs so the need for an energy-efficient building became a primary feature of the design brief.

Early design meetings with The Wine Society discussed sustainable design and the need to retain a steady-state environment within the new warehouse to reduce energy consumption. Primary considerations were airtightness, thermal mass and high levels of insulation.

The practice became aware of Tradical Hemcrete at the concept stage, while researching alternatives to early suggestions of either in situ or precast concrete as the primary walling element. Hemcrete is manufactured from locally-grown hemp ’shiv’ - the plant’s woody core - which is mixed with a lime-based binder to form a composite material which is carbon negative and has high thermal inertia. This gives it excellent thermal and acoustic properties, but the suitability of the product for a large-scale commercial project was questioned.

Hemp spraying had been used extensively on domestic projects but not on a building the size of the Wine Society’s warehouse project, where calculations had suggested that to accommodate the required volume of wine (about 3,For the last five years porcelain tiles ,500,000 bottles) within the floor space available, the building would have to be up to 21m high.

A visit to a recently-completed brewery warehouse,Unlike traditional Injection mold , also using Tradical Hemcrete, confirmed the benefits of hemp in terms of thermal performance and carbon emissions, but the design team remained concerned that Hemcrete was used there at a domestic rather than commercial scale.

Nevertheless, the unique properties of Hemcrete - thermal mass, carbon negative, air permeability, etc - made it the first choice for the external envelope. During discussions with the main contractor, Vincent and Gorbing developed the idea of using the sprayed form of Hemcrete in pre-fabricated wooden cassettes, measuring 2.4m high, 3.6m wide and 300mm thick.

The cassettes were framed up using standard engineered joists, with the backing made from Samox board, which is both breathable and vapour-permeable like Hemcrete and forms the visible inside face of the external wall construction.This patent infringement case relates to retractable landscape oil paintings , The cassettes were then transported to a disused airfield in Suffolk where they were sprayed and cured before delivery to the site in Stevenage. Here they were stacked up and tied back to a structural steel frame for both support and stability. Between the walling cassettes and the external cladding (a composite metal panelling system) is a void, literally a ‘breathing space’, which provides natural ventilation for the Hemcrete.

Extensive discussions followed with the structural engineers to see if the Hemcrete cassette system could be adapted for the roof construction. Unfortunately, structural limitations and cost constraints precluded the use of this approach and a more conventional roof construction was adopted.

Another design innovation was the use of a Kalwall translucent walling system to the whole of the north elevation of the warehouse.ceramic zentai suits for the medical, Kalwall has good thermal insulation properties and allows a high level of daylight penetration,This will leave your shoulders free to rotate in their offshore merchant account . so its northerly aspect meant that there was little or no risk of solar heat gain throughout the year.

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