Why are Polycarbonate roofs noisy?
Polycarbonate roof panels are manufactured by extruding melted polycarbonate at 300° C through a shaped former to make the cellular roof structure. This is cooled rapidly causing stresses at the outer surface which acts like a drum-skin when the roof is impacted by a raindrop to produces an annoying high frequency tinkling noise.
HTG’s noise reducing sheets are effective because they take the impact of the rain, and modify the resonant frequency of the roof panel, reducing the sound to that of a glass roof.
Because the noise reducing sheet becomes the new outer weather surface of the roof the roof’s life is extended by up to twenty years. Solar control options cut 85% of solar heat and glare for cool and comfortable summer temperatures and One way vision grades are available for safety and security.