Industrial Hemp Build ( UK )
Marks & Spencer : Cheshire Oaks Retail Store
Hembuild , part of the Limetec Group , was asked to supply a 198,000sqft retail store near Chester built to M & S Plan A requirements , for optimal sustainability and energy efficiency . UK ’ s largest retail store and largest M & S store in Europe , taking seven years to build .
Hemclad was selected for all non-glazed areas of the envelope . As its thermal mass and inertia properties were calculated , by extensive thermal modelling , to provide savings to the M & E plant ( heating & cooling ) at construction stage , plus reduced energy when in-use .
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2600m2 of Hemclad “ infill ” panels applied into a primary / secondary frame by others . This frame was a mix of steel and glulam elements . Hemclad panels made at approx . 3.8m x 2.4m complete with pockets for installation by telehandler , as crane installation was not possible due to eaves overhang already in place . Panels have 0.12U-value using a twin-stud arrangement to minimise thermal bridging – overall 400mm deep with 200mm Hemcrete factory-cast and 200mm Breathable hemp-fibre quilt . Specification chosen after extensive thermal modelling to provide the best balance of thermal mass to suit retail store thermal dynamics and optimisation of heating / cooling plant .
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