TRENDRAY polycarbonate panels give roofs and curtain walls the feel of a lightweight glass ribbon without the weight. Long spans are achieved with fewer beams, while generous daylight penetrates deep into interiors, keeping electric lighting off for most of the day. A concealed locking system lets the sheets float within their frames, quietly absorbing seasonal movement and removing the need for sealant-heavy expansion joints. The result is a fast-install, low-leak roof that stays visually clean and performs year after year, even in polluted or coastal air.