The Use of an Aerial Infrared Survey in Identifying Roof Structures of High “U” Value in an Extensive Building Complex

Abstract

In the past few years increasing use has been made of aerial infrared surveys by various organisations in an attempt to identify areas of high heat loss where remedial action might prove cost-effective. There is little doubt that the resulting “quick-look” imagery does show up such areas, provided a knowledge of the materials making up the roof structures is available. When the attempt is made to quantify these losses, however, difficulties do arise and it is one of the purposes of this paper to illustrate these difficulties with special reference to a local survey commissioned by the University of Dundee.