The Greenhouse effect. The major cause of excessive heat build up in conservatories is the roof. Clear polycarbonate allows 80% of the suns solar energy to pass directly into the conservatory. As a result, the air temperature rises in the enclosed space making occupation uncomfortable. This effect is often referred to as "The Greenhouse effect"

A common sense solution Tec-Sun Solar Inserts act as a solar shield preventing the suns solar energy passing through the roof whilst at the same time allowing high levels of natural light into the conservatory. The bright airy feel is maintained. UV, the principle cause of fading is virtually eliminated and glare dramatically reduced.

Winter heat loss In winter, generated heat rises and escapes through the roof. Polycarbonate, with a typical u-value of between 2. 0 and 3.0 whilst generally having better insulation than glass is still the principle cause of heat loss. Tec-Sun solar inserts help to slow the rate at which heat escapes by re-radiating heat back into your conservatory. Our customers tell us the cold bite sometimes found in winter is reduced and energy cost reduced.