Residential Buildings

Chalet Chantemerle

Saint-Chaffrey, France

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An alliance of traditional times and the modern age for optimal comfort – a refined and cozy vision of building in the mountains.
Design: The chalet is a realization of a series offered by a French wood construction company, customized by an architect. The traditional roof truss with distinct lines and a modern floor plan is a trademark of the series. The chalets primarily serve as vacation homes rented by tourists.

Wood: The wood frame walls are completely airtight. Oversized girder diameters were used for the visible structural system, showing hand-made details in some parts. Some beams consist of old massive timber. The construction company only uses local, PEFC-certified wood, primarily larch. Larch is a typical kind of timber for the Hautes-Alpes region, seeing that the wood is robust and resistant to rot. Larch is used for a variety of purposes: as massive beams with traditional surface treatment for the visible structural system, as untreated slats for the facade, as brushed slats for the interior walls, or as the base material for the interior finishing.

Energy: The excellent energy-related qualities of wood help the chalets to meet the standards of the French Thermal Regulation RT 2012 (upper limit of 50 kWh/m²a) and certificates such as BBC-Effinergie®.
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Basic information
Year of Completion |  2015
Investor |  SCI IMMOPLUS, Rennes (FR)
Architecture |  Philippe Gauthier, Marseille (FR)
Structural Engineering |  BET Patrick Millet, Gap (FR)
Construction Time |  14 months
Number of floors |  3 + underground parking
Plot size |  815 m²
Gross floor area |  299.6 m²
Construction Costs (netto) |  3 750 €/m²
Photography |  Pictures 1-5: Pierre Masclaux, La Roche de Rame (FR)

Technical aspects
Concept |  Timber frame construction, wooden beam cealing; roof: traditional timber frame with roofing underlay
Woodworking |  Chalets Bayrou, Puy-Saint-André (FR)
Origin of Timber, Certification |  PEFC-certified regional wood (larch) (FR)
Traceability of Timber |  Guaranteed by certification
Forestry Value Chain |  All involved companies are from within 40 kilometers (Gap, Briançon)
Energy Systems |  Floor heating
Energy Consumption  |  84,1 kWhep m2/a (Cep RT 2012; primary energy demand); Bbio 64,3 / bbiomax 98 points

Energy Efficiency

Floor Plan Floor Plan Axonometry Axonometry