Abrantes V., Fernandes E de O.
Bibliographic info:
2nd International PLEA Conference, Crete, 28 June-1 July 1983. Passive and Low Energy Architecture, edited by Simos Yannas. Oxford:Pergamon

The heating and cooling loads due to air infiltration may be estimated by a mathematical model that requires knowledge of the leakage characteristics of each component of the envelope. To extend the modelisation to the pitched roofs common in Portugal, characteristics of roofs were determined by a differential pressure method.