Sheep Wool Loft Insulation Installation in Enfield This Enfield property was built pre-1920, making it suitable for Sheep Wool insulation. The customer had a large amount of misplaced fibreglass strewn about his loft. With the debris removed and disposed of via a skip, we cleaned the loft and began installation of 240mm Sheep Wool insulation, with eaves for ventilation.Since the customer wanted storage space in his loft, we also installed a storefloor, which is a raised loft boarding system approved by the BBA (British Board of Agreement). This raised flooring prevents the insulation beneath from being squished or misplaced. It also leaves a gap underneath for the insulation to ventilate. OSB boards were installed as a finishing touch, resulting in a renewed multi-purpose loft space.