Roderic Bunn
TechnicalNew ways to catch some rays
Photovoltaics may generate clean electricity, but they’re expensive and difficult to integrate with a building’s fabric. Will the next generation of PV technologies tackle these problems?
TechnicalAdding biofuel to the fire
The government says biomass could provide a sustainable means of heating UK homes, but is this remotely practical?
TechnicalGrow your own insulation
In the search for zero-carbon construction, architects are rediscovering the virtues of natural fibre insulation. An emerging favourite is hemp, a material not only able to match synthetic fibres, but also believed to absorb CO2 during its life.
TechnicalFriends of the earth
Rammed earth is going mainstream as a result of its insulation and sustainability properties
TechnicalTubes with a twist
A technical breakthrough makes earth tubes a more viable method of heating.
TechnicalDeep impact
Roderic Bunn explains the benefits of using borehole cooling at the refurbished Royal Festival Hall
TechnicalTermite tutors
Insect ingenuity and the power of the earth have inspired low-energy ventilation







