Vent-Axia has introduced a new, stepby- step ventilation guide designed to help explain recent Building Regulation changes to private and social housing new-build specifiers. <br> <br> “Amendments to Part L and Part F of the Building Regulations issued in October 2010 have effectively re-written the rules for domestic ventilation,” says Lee Nurse, Vent-Axia’s marketing director. “The drive to reduce carbon emissions places much greater emphasis on correctly designed and specified ventilation systems, competent installation and verified performance. This new guide looks in detail at these three key areas and explains how specifiers can achieve compliance.” <br> <br> The guide provides an overview of new Building Regulations Part L, the document covering fuel and power, and Part F, means of ventilation, with a summary of the implications for ventilation. These cover airflows, background ventilators and noise (Part F) and minimum efficiencies of motors and heat exchangers (Part L).<br> <br>