Operable Elements

Elements which can be installed and removed or opened and closed allow the building to respond and adapt to varying weather and climatic conditions. Significant energy savings can be achieved by using such strategies to take advantage of passive energy flows thereby reducing demand from mechanical systems.

Related Components

Component-Specific Considerations

  • Operable transoms in entrance assemblies that promote cross ventilation;
  • Porches and balconies with removable screens or glazed panels that accommodate seasonal changes.

  • Glazed partitions with operable transom panels.

  • Skylights complete with base venting or operable panels, which encourage stack effect in order to circulate air.

  • Operable windows and individually controlled heating/cooling registers;
  • Storm windows, operable window shutters, and awnings, allowing temporary building system adjustment to optimize performance.

  • Interior storm windows that are removable, improve window performance based on heating or cooling requirements;
  • Awnings, horizontal projections, and screens that can respond to sun exposure, glare, and solar gains and that can mitigate extremes. These are especially useful where they are adjustable to accommodate seasonal or sun-movement differences.