Listed Building Consent is required for any alterations that would affect the character of the building and it is a criminal offence to carry out these works without consent. If you wish to carry out any work on a Listed building or building within a conservation area you will require Listed Building Consent through your local authority.
There are two types of secondary glazing (vertical and horizontal), both of which, are the solution to wanting effective ‘double’ glazing in a property within the constraints of above and neither require consent from the Local Authority to be installed.
There are many benefits to having secondary glazing installed:
- Easy cleaning with windows that simply lift out – it could not be simpler. Suitable for Georgian, Victorian and Edwardian vertical sash windows.
- Substantial energy savings are achieved and overall efficiency can be doubled by improving the heat-loss coefficients.
- Noise reduction that is typically more than twice as effective as double glazing. With an air-gap of only 40mm and using 4mm toughened glass noise was reduced by 40dBA while retaining normal working of existing internal shutter.
- Ultra-thin lightweight framework means that its visibility is kept to an absolute minimum.