Method for preventing the formation of the sound of rainfall in a metal downspout system and for muffling the sound of the pipe system on the walls of buildings

摘要

the invention is the subject of rainwater putoamisu00e4u00e4nen vaimennusmenetelmu00e4 buildings ulkoseinustojen of round and metallisiin syu00f6ksyputkistoihin (2), and their kulmakappaleisiin (3).essential invention is that it muodollaan,material elastisuudellaan and vaimennusosan (l) and kulmakappaleen (3) between lepokitkalla attaches to, and relies on kulmakappaleen (3) sisu00e4puolisiin poimuihin (5).