Wall Insulation Material

Though a major contribution to heat gain in a building is from walls, wall insulation has been neglected. Some traditional ways of providing thermal insulation to the walls have been in the form of using light coloured stone tiles on exteriors to minimize sunlight, double-wall with air cavity, cavity wall with insulation material as infill, insulating panels on interiors, etc. However, each of these methods has its own disadvantages. Apart from not offering a high thermal insulation, they have the problem of rain water seepage, water filling the cavity, poor indoor air quality and decrease of valuable internal space.