BORGA | Plastic Skylights

Plastic Skylights

To provide light transmission in our halls we use roof or wall translucent panels. Transparent sheets are of the same widths and profiles as Borga steel sheets what not only makes the assembly simple and fast but also ensures high tightness. Using this type of translucent panel is the most economic method of lighting the interiors of halls with natural light.

For not insulated panel trapezoidal and polyester sheet is used (it has the same shape as trapezoidal profile on a roof or walls). Insulated panel (sandwich) is made from double trapezoidal, polyester or PVC profile (outside and inside). In between polyester panel polycarbonate panel is placed to ensure appropriate heat insulation.

Light transmission for insulated (sandwich) panel depends on type of used material. It equals approximately 60% of single, plain and clean glass. For not insulated panel (just translucent panel) light transmission is approximately 85% of single, plain and clean glass.

Pictures

Material

Translucent sheets are produced from glass fibre reinforced polyester. They are covered with Melinex film, which is 20 micron thick. Due to use of melinex films, the translucent sheets are resistant to sunbeams and air pollution. The light transmission of 85% is maintained for many years. Because of lower strength of translucent panels in comparison with steel sheets, the translucents have to be more supported. Distance between supports should not be bigger than 70-80 cm.

Reinforcement

All translucent sheets are manufactured with reinforcement in the form of glass fibre mats. Through the use of glass fibre mats we can always guarantee an even thickness of our products. The glass fibre mats are produced according to the ISO 3374.

Fastening

When translucent sheets are being used together with metal sheeting, the same fasteners used for the steel sheets are recommended.

Temperature

The translucent sheets are resistant to wide range of temperature. The highest temperature without load is +1300 C. The lowest, safe temperature is -400 C. The translucents will not be brittle at low temperatures, thanks to reinforcement. There can occur linear expansion of the translucents of 1 mm per meter sheet, when calculating with a temperature difference of 400 C. Due to temperature movements the sheet length should not exceed 8 meters. Maximum length for the production is 12 meter long sheet. Longer translucents can cause transportation problem.

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