Wild high grass as resource for roofing material. In tropical countries one of the best and free or cheap roofing material is high grass. Here a farmer girl from a small farm house nearby cuts the strong grass. Later the grass is bundled and dried in the sun - then either used on own hose or also sold on local market as a source of additional revenue.
Bundles of grass as roofing material offer an excellent isolation from the hot tropical sun. Houses with metal roofing often are like a baking oven, while grass covered houses are comfortably cool.