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Envelope by Loft and Bunk

envelope modular house concept by loft and bunk rooms -  high end house concept environmentally friendly design

A home designed around the way you live.

A new approach to high performance residential spaces, combining custom design, local manufacturing, and flexible modular construction.

Envelope is a modular building system developed by Loft & Bunk. Individual rooms are designed and manufactured as transportable modules, then combined on site to create a home that is larger, more comfortable, and entirely customizable.

envelope design
envelope drawing 2

Designed for energy efficiency

  • locally available materials
  • high performance insulation
  • Solar-ready
  • Climate-specific envelope design
  • Wildfire-conscious material/design choices
  • Prefabricated exterior insulation modules that attach to the outside of the main structural module after transport to site.
  • Each panel is approximately 2 ft wide, allowing for standardized manufacturing, handling, and replacement.
  • The main structural module remains compact for transportation, while the panels are attached around the exterior to create a continuous, high-performance thermal envelope.
  • Panels are designed to integrate around windows, doors, corners, and other openings.
  • Joints are carefully detailed to minimize thermal bridging and maintain continuous weather and air barriers.
  • Different insulation thicknesses can be used depending on climate and performance requirements, while keeping the basic structural module standardized.
envelope insulation panels
envelope modular house concept by loft and bunk rooms - high end house concept environmentally friendly design

Contact us with your individual layouts and we will design the rest