A thatch capsheaf of a building.
The capsheaf on a traditional house, baluy, consists of ten to fifteen bundles of cogon grass, gūlun, laid around the roof peak, buttends down, tied to the roof-bearing post, binnūlon, twisted, bent over to one side, and tied again. On a two-pitch roof as, e.g., on a hut, ābung, a temporary shelter, allung, etc., the capsheaf extends the full length of the ridge.