NEWS | DIGEST New overheating reg makes compliance hard to achieve Concerns have been raised about the effectiveness and usability of new Approved Document O, which sets standards for overheating in new homes. Susie Diamond, founding partner at buildings physics consultancy Inkling, said the document, published in December as part of the update to Building Regulations, could make reporting harder and compliance difficult to achieve. The two routes to compliance are: a simplified method based on checking glazing areas and window opening areas against fixed limits, based on the unit and room floor area; or a dynamic thermal modelling method following CIBSE TM59 with some minor changes. Diamond highlighted problems with the calculation methodology that make it difficult to pass, particularly in low-risk areas. To see Inklings appraisal of AD O, visit bit.ly/CJMar22NewsADO Gove admits taxpayers may pay more for cladding x Michael Gove Secretary of State said industry would originally pay 4bn cladding bill Michael Gove has admitted that taxpayers may have to pay more than anticipated to make thousands of buildings safe. The Secretary of State of Levelling Up, Housing and Communities (LUHC) gave evidence to a parliamentary select committee on his proposals to force industry to pay to remove cladding and to protect leaseholders from exorbitant costs. In his evidence to the Commons LUHC Committee on 21 February, Gove told MPs that it was proving hard to get companies that made combustible materials for the buildings in question to pay for the remedial work. The committees inquiry on Building Safety: Remediation and Funding is principally examining the announcements Gove made in the House of Commons and his department on the proposals to demand industry pays for the work, which includes 4bn to cover the cost of xing combustible cladding on residential tower blocks above 11 metres. The Home Builders Federation said that only a small proportion of the total number of buildings that the Government estimates are in need of remediation have been built by UK home builders. This valve was developed by world class engineers. Just like all our others. Complete valve solutions take engineering prowess, rigorous testing and operational excellence, oh yes, and an exhaustive selection of valves. So, when you need the complete valve solution none of the others will do. Find out more at hattersley.com/justlike Trevor, Senior Design Engineer 21400_CRANE_HATTERSLEY_AD_133X186.indd 1 14/02/2022 17:31 10 March 2022 www.cibsejournal.com CIBSE March 22 pp10 News.indd 10 25/02/2022 15:07