日常小贴士

• In the winter, open curtains to allow sunlight to warm your home. 在夏天, close curtains (especially on the west-facing windows) in the afternoon to keep the house cool.
• 完全关闭外部门. If it’s closed but not latched, it can let heat inside during the summer and outside in the winter.

改善现有的门窗

• Install exterior overhangs or awnings in order to keep the strongest rays of the hot summer sun from entering.
• Use your landscaping to keep your home warm in the winter and cool in the summer. Well-placed deciduous trees on the west and northwest side of the house can reduce cooling costs in the summer. Planting trees on the south side can block warming rays that would help heat your home in the winter.
• Seal air leaks around windows using either rope caulk or a caulking gun.
• 安装防风窗. Options include vinyl film, rigid plastic or combination storm windows. Consult your local hardware store or window dealer for the best option.
• Install weather stripping around exterior door frames to ensure a tight seal when the door is closed.
• Install door sweeps at the bottom of the door to reduce airflow.
• Consider installing a storm door in addition to your exterior doors.

选择/安装

• 购买能源之星^® 窗户、门和天窗. If your home has only single-pane windows, new ENERGY STAR windows will provide a noticeable difference in comfort and heat loss or gain.
• Look for double-pane windows with a low-e (low emissivity) coating, 绝缘腰带, spectrally selective coatings and an inert gas filling. 寻找u值为0的情况.30人或以下 and a 太阳能 Heat Gain Coefficient (SHGC) of 0.30人或以下. 数字越低越好. Consult the National Fenestration Rating Council label (NFRC) to understand the performance features of windows and skylights.