sinusoidal corrugated sheet — side laps to incorporate an overlap of at least 1,5 corrugations and end laps to be a minimum of 100 mm;
Sinusoid-laineplekk: servade ülekatted peavad olema vähemalt 1,5 laine ulatuses ning otste ülekatted peavad olema vähemalt 100 mm.