Roof insulation retains heat in the home in winter.

屋顶隔热层可在冬季保持室内温度。

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The heat insulating and reflective film was approved to be a new building material especially suitable for wall and roof insulation by insulation test and actual project application.

本文通过工程实际应用及保温隔热性能测试、比较，证明绝热反射膜是一种特别适于墙体和屋面保温的新型建筑材料。

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Heat insulation. The walls and roof adopts steel sandwich panel that has good heat insulation and fireproof function.

隔热保温。墙面和屋面均采用彩钢夹芯板，具有较好的隔热防火保温功能。

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Standard green features in each home include LED lighting, recycled glass countertops, a high-efficiency water heater, water-conserving fixtures including dual-flush toilets, FSC-certified bamboo flooring, EnergyStar appliances, zero-VOC paints, finishes, and adhesives, a whole-house ventilation system, low-E windows, high levels of insulation, a fully recyclable, heat-deflecting cool roof, exterior wood siding and decking made from FSC-certified cedar, and much more.

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