Weight: 3,5 kg. / 7,72 lb. Dimensions: 43,5 x 26 x 10 cm. / 17,13 x 10 x 4 in.
Essential for the ventilation of the space between the TB-4 Quattro® roof tiles and deck support, to avoid any possible formation of water condensation, drying the underside of the roof tiles and evaporating interstitial moisture.