Drawing of two types of brick wall?
Why wasn’t my house built with cavity wall insulation and the right amount of loft insulation? Houses are built to comply with the Building Regulations that apply at the time the property is built. Since the oil crisis in the early 1970s, the insulation standards in the Building Regulations have been progressively upgraded a. click here to view . Then the Government planned to increase insulation standards again in 2005, and this is unlikely to be the last change. So, most homes need extra insulation to keep up with current insulation standards. How much will cavity wall insulation cost? The cost depends on the size of your house, however, with subsidies, it will usually cost between £120 and £260 – which can pay for itself in approximately 1 year. How is cavity wall insulation installed? Small holes of about 20mm (3/4″) in diameter are drilled about 2 metres apart (7″) in the external brick wall where the horizontal and vertical mortar joints meet. Insulation is then blown along a fle
