Protec uses 1.81mm thick, black powder coated, perforated aluminium sheet. With perforation diameters of just 2.5mm, the holes in the perforated aluminium sheet are too small to get through – even for mosquitoes, and with an open area of 39.2% Protec is still easy to see through and allows the breeze in for ventilation. Protec security doors and windows will also help keep solar heat and UV light out during summer – and reduce heat loss in winter.
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