Envelope

Control heat flow and light energy

When designing new facilities or renovations, select strategies to control heat flow and light energy to minimize energy costs. Light energy can be controlled using overhangs to shade windows, shading glass surfaces, and using glazing material for exposed window surfaces. Other methods for controlling heat flow include selecting the correct materials for the walls and roof and using natural ventilation and landscaping. Your utility company can help you select those strategies which provide enough savings to justify their expense.