You swing your pack on to your back and set off across the rough ground. After a few days you notice the pools of bitumen again and as you approach the nearest houses you see people scooping up the black sticky material. It is put into bowls over a fire. When the bitumen has melted and it is thick and sticky, sand or chopped up pieces of plants are added to make it stronger. It is then poured onto the floor or into moulds where it hardens again. Melted bitumen is used to make boats or houses waterproof.

Do you help with waterproofing a boat or a house?

boat house