IREM Certified Property Manager (CPM) Practice Test 2026 – All-in-One Guide to Exam Success!

The selected strategy, which involves installing low-emission (low-E) glass, is particularly effective for improving energy conservation in properties. Low-E glass is designed to reduce the amount of ultraviolet and infrared light that can pass through the glass, while still allowing a high level of visible light to enter. This technology enhances energy efficiency by minimizing heat transfer, meaning that in cold weather, less heat escapes from the interior and, conversely, in hot weather, it helps keep excess heat from entering the living space. As a result, buildings equipped with low-E glass can maintain a more consistent indoor temperature with reduced reliance on heating and cooling systems, leading to lower energy consumption and costs.

Other strategies, while they may contribute to energy efficiency, are not as effective as low-E glass in the context of directly conserving energy associated with heat transfer through windows. For example, double-hung windows may offer improved ventilation options, but they do not inherently improve thermal insulation. Tinted windows can help reduce glare and heat gain from sunlight, yet they might not perform well in terms of energy efficiency when it comes to visible light transmission and overall heat retention. Wooden shutters can provide additional insulation when closed, but their effectiveness is limited compared to the advanced properties of low-E glass.