Alpine Chalet Retrofit

Alpine Chalet Retrofit

Located in the French Alps, this 1950’s chalet is an example of modular housing built for the laborers involved in the construction of a nearby new dam.

To bring the chalet up to passive house standard, we needed to address the exterior wall construction and provide adequate insulating properties suitable for this alpine region. To create an insulating skin, we will begin with the removal the existing wood siding.  We will then add a new layer of insulation that will help bring this more-than 60 year old house up to Enerphit* standards. New wood siding will then be constructed around the perimeter of the insulation both preserving and respectfully updating the alpine chalet’s original local character.

[* – Enerphit standard is an energy standard derived from the passive house guidelines specifically for existing building retrofits.]


  1. 10 Frequently Asked Questions About Passive House Design
  2. Meet Itzy & Bo, Passive House Owners from Brooklyn, New York
  3. The Ethical Case For Cross-Laminate Timber Construction in Passive House Design
  4. Is CLT the Architectural Solution to the Building Demands of the 21st Century?
  5. From XS to XXL: How We See the Future of Passive House Design