 During the repairs in years 1978-81 on the occasion of the 450th anniversary of the lighthouse, it was covered with reinforced concrete shell and perchlorovinyl paint.As there was no white colour available, yellow was used.The paint blocked the way for humidity to escape from the body of the tower and water collecting in the inner surface of the cement mortar, freezing and melting, started do damage the already old and degraded lime mortar.