该地区窗膜需求的驱动因素
6月至9月间南加州下午的太阳角度足够低，可以将直射太阳辐射深入朝西的房间。标准窗帘遮挡视野；膜阻挡热量。
加州内陆城市经历了全国最高的太阳辐照度之一。加上较旧的单层玻璃窗存量，这创造了对低辐射改装膜和太阳能控制膜的强烈需求。
太阳能控制窗膜 的工作原理
住宅窗膜是解决太阳热量增益最有针对性的方案：它在源头——玻璃——解决问题，而不是通过更多制冷来补偿。
低辐射改装膜专为旧式单层玻璃窗设计。它增加了一层低辐射率，显著提高隔热性能——是1980年前加州住宅最具成本效益的升级。
为什么窗膜是您家的最佳选择
County of San Bernardino Transitional Assistance Department in San Bernardino has a combination of high solar intensity, energy-efficient windows, and premium residential construction. 太阳能控制窗膜 is one of the most effective solutions for this climate profile.
Effective against San Bernardino's high solar irradiance
Compatible with double-pane low-e glass
Professional installers available in your area
10–15 year manufacturer warranty
安装与费用
合格的安装人员在推荐膜等级之前会评估您的窗户朝向和玻璃类型。他们将识别您热量增益最高的方向，并为每扇窗户匹配正确的膜。
Install time
30–45 min per window
Typical cost
$150–$400 per window
Cure time
30 days full cure
窗膜类型对比
Burn pattern appears in a defined stripe or patch near a window
Damage is worst between 1pm and 5pm on sunny afternoons
The affected window is double-pane or energy-efficient
The burn pattern has shifted slightly over the past year
Turf replacement hasn't solved the problem — it keeps coming back