TERMO CAPPOTTO CALCE-CANAPA A KM ZERO: MATERIALI TRADIZIONALI APPLICATI AL RESTAURO IN FUNZIONE DELLE ATTUALI ESIGENZE ABITATIVE E NORMATIVE

Marina Locandieri1, Maria Albonico2, Giorgio Garabelli2, Maria Rita Minciardi3, Angelo Albonico4,

Paolo Deaglio4

1 (progettista e direttore dei lavori, Torino, marina@rict.it)

2 (Consorzio San Luca per la cultura l’arte ed il restauro, Torino,

info@consorziosanluca.eu)

3 (ENEA -UTTS Laboratorio di Ecologia. Centro Ricerche ENEA di Saluggia, mariarita.minciardi@enea.it)

4 (Calce Piasco spa, Piasco CN, info@calcepiasco.it)

Abstract

This paper illustrates the restoration and the increase of energy efficiency of a mountain chalet located in Soucheres Basses (hamlet of the town of Pragelato, in Piedmont), whose project was designed with the aims of restoration, preservation and environmental sustainability. Among the works performed here we place particular attention to the use of a natural insulator with some highly eco-friendly properties. The product used is a biological compound with high thermal inertia, dehumidifying and sound-absorbing qualities and low environmental impact. It is made of lime, pozzolans and hemp: these construction materials are quite similar to the originals, plus their origins are of the area. This biological compound was laid with the use of formworks executed locally in order to follow as much as possible the different inclinations of the masonry. This work allowed on the one hand to save the historical specificity of the building and on the other to achieve an improvement in energy efficiency using sustainable materials with a low environmental impact during their whole life-cycle.

Parole chiave/Key-words: Lime, Hemp, External Insulation, Building Conservation, Alpine Architecture