kasaw1ncross boards on rafters, where tin roof is nailed on or sheaves are attachedkasau, kayu yg melintang pd atap (bumbung) rumah dll (utk memasang atap)kasaw2KASAWnrafter cross boardskasauKayu tolomi poma ot onuwon do kasaw nga awasi-i.Even soft wood will work fine for cross-boards.Kayu lembut juga baik digunakan kasau.

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