contents July 2015 News europe warns UK over energy certificates Penalties and controls inadequate says European Commission iAQ health fears confirmed Inaugural address from CIBSE President lord debden urges mPs to focus on energy efficiency CIBSE supports event to back Cost Effective Energy Measures Bill More features The essential guide A Whats new in CIBSEs environmental design document. In part one Tim Dwyer looks at use of data and thermal comfort oversizing: escaping the trap The pitfalls of oversizing heating and cooling systems cFd not always the answer Why industry should consider specifying standard fans and controls smoke and rear-view mirrors Exploring car park ventilation systems incorporating fire and smoke control Kick up the arts robert Klaschka Environmental benchmarking cuts resrouce use at cultural events Safeguarding building data Regulars Feedback Election of CIBSE officers, opening doors to polymath students and schools design Act on safety before an inspector calls Hywel Davies on lessons learned after the ceiling collapse at Londons Apollo Theatre cPd Integrating gas-fired and electrical heat pumps with heating and hot-water systems looking ahead Launch of Guide A and heat networks code The power of three Presidents from RIBA, CIBSE and B&ES join forces