LUXÁN GARCÍA DE DIEGO, M.; VÁZQUEZ ESPÍ, M.; BARBERO BARRERA, M. M.;GÓMEZ MUÑOZ, G.; ROMÁN LÓPEZ, E.
Universidad Politécnica de Madrid
In this research, thermophysical properties of façades and dividing walls of buildings dating from XVII to XIX century in the centre of Madrid have been investigated in order to propose an “energy” renovation of building envelopes.
A review of classical authors dealing with materials, composition and characteristics of historical walls as well as a complete field study on more than 100 buildings analyzed in the studied area, allowed us to characterize existing buildings and their facade thickness. Likewise, thermophysical properties such as thermal resistance as well as thermal inertia, decrement factor, time lag, from steady-state and time dependent models, have been studied.
On this basis, useful recommendations arise. They are related to the function of wall: façade or dividing walls, insulation thickness and position in order to achieve acceptable standards and take advantages of the thermal inertia of elements.
Thermophysical properties, Energy conservation, Thermal resistance, Insulation, Decrement factor, Time lag