Greenhouse Covers Following many years of successfully using bubble polythene for solar pool covers to heat swimming pools by solar radiation, an improved version of this material was developed for the use as a greenhouse cover. Read about the successful application of bubble greenhouses in Antarctica.

TRANSPARENCY:
UV400 has a high degree of transparency. Tests conducted indicate a light transmission of 80%. This is a guide only as the angle of incidence affects these findings. The material has the advantage of eliminating shadows as light is evenly defused through the bubble, creating an even light distribution.

WEIGHT:
UV400 is light weight as compared with other covering / glazing materials.

INSULATION:
UV400 is a triple laminate honeycomb flexible sheet, with cells of trapped static air creating a highly efficient barrier against conductive heat loss. Thermal conductance values measured in ‘Watts per meter squared per degrees Kelvin (Celsius)’ indicate a heat loss of 3.9, thermal conductance values for some other greenhouse materials are set out in table below. Structures in a commercial situation with a complete covering of UV400, indicate a potential saving in the vicinity of 40%.