• Exterior over window shading is the way to reduce over heating (if allowed). It only shades during summer (when the sun is high in the sky), never needs to be opened/closed, is more efficient than an interior solution and costs less than treated glass.

  • So basically for non period properties and not for leasehold properties either. Would imagine there are not many situations where external shading was allowable or viable. I know we would not be allowed, we can’t even replace the single glazing.

About