One of the forward-looking features that Jestico & Whiles designed into its 'House for the Future' at the Museum of Welsh Life was a green roof. This is a Kalzip Nature Roof which consists of a sedumbased plant layer on top of a Kalzip aluminium standing-seam roof. In addition to the fact that aluminium is recycled, and recyclable, and that it offers a long corrosion-free life, the roof, which is fitted with rainwater tanks, offers a number of benefits and functions. These include: electrical energy (photovoltaics); reduced rainwater run-off; rainwater collection to supply WCs; summer cooling; winter insulation; high acoustic performance;
improved air quality; reduction of impact on the site's biodiversity; and reduced visual impact.