EXPERT ADVICE
In a typical home, around a quarter of the building’s total heat leakage escapes through the roof. So by insulating your roof as part of the loft conversion process, the benefit should be felt around the whole house, making it feel warmer and saving energy. But there’s a lot more to transforming your old roof space into a comfortable new living area than simply unfurling a few rolls of loft quilt. Once lofts are converted, the ‘thermal envelope’ of the house will shift upwards from the bedroom ceilings to the previously uninsulated roof slopes. This is why the predominant method of insulating loft conversions involves fitting insulation between the rafters to create a ‘warm roof’ as the building’s
