Case study: ASHRAE aims for net zero at HQ retrofit

Turning a leaky old office building into an exemplar net-zero headquarters for a high-profile organisation is always challenging – but even more so when that organisation is ASHRAE. Andy Pearson explains the approach Integral took to deliver for its knowledgeable client

Building resilience into net-zero schools

Schools designed today must withstand future climate change. Tim Taylor, Joe Jack Williams and Paula Morgenstern, from CIBSE School Design Group, look at the likelihood of them overheating

Net gains – retrofitting scenarios for net zero carbon

Retrofitting homes to be net-zero carbon is one of the great challenges of the new decade. Radwa Salem applies the existing nZEB standard to two dwelling types to assess its suitability and predict the overheating risk of targeting net zero

What is the most efficient system for heating zero carbon homes?

What is the most effective way of heating our future zero carbon homes? Chris Twinn has been researching the issue for five years and has found that standalone ‘autonomous’ heat recovery systems offer the most benefits when considering high-density homes