In addition to affording a safe foothold for the crew in wet weather, it helps to insulate the spaces below them against heat and cold.
Ukonyeza ekukwazini ukubeka inyawo ngekukhuselekileye kwabasebenzi kwimozulu emanzi kuyenceda ukugquma izithuba nyexabhu eziphantsi kwabo ukuze bangabinekutsha okanye bagoddo.