How Does a Heat Reflective Cover Work in Regulating Greenhouse Temperatures?
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The science behind a heat reflective cover lies in its ability to control radiation and thermal transfer. Traditional greenhouse plastics allow sunlight to pass through freely, which warms the air and soil inside. However, during hot afternoons, this can cause overheating, damaging tender crops. A heat reflective cover addresses this problem by incorporating reflective additives within its polyethylene or polycarbonate surface that scatter or bounce back portions of infrared rays before they penetrate the structure. This reduces the overall temperature without blocking the visible light plants need. The result is a more controlled and balanced internal climate that minimizes heat stress, conserves water by reducing transpiration, and enhances plant growth conditions even during periods of intense solar exposure. For growers in Long Beach, California, where sunlight is abundant nearly all year, this type of technology ensures consistent performance and prevents excessive heat accumulation during summer peaks.