When talking of older buildings, we are referring to ‘Period Properties’ – generally speaking, the properties built pre World War one (Georgian, Victorian, Edwardian etc.). Listed Buildings also form a large part of what makes up, but are not limited to, pre-war built properties – buildings which carry a special historical or architectural significance.
Structural characteristics of older buildings include: solid walls, lack of damp proof courses and no felt under tiles or slates. Traditional building materials such as stone, soft brick, lime based mortars and plasters etc are more porous than modern day building materials. All of these combined factors mean that penetrating and rising dampness is more likely to occur in older buildings.