Poverty is the main cause of hunger in the world. This is true in rich and poor countries alike. It is true no matter whether people live in urban or rural areas. Most people who are hungry are living in extreme poverty, defined as income of $1.25 per day or less. The largest group of people in the world in extreme poverty are smallholder farmers in developing countries.
1 Many of the houses had OSB sheathing Material, usually plywood or oriented strand board (OSB), but sometimes wooden boards, installed on the exterior of wall studs, rafters, or roof trusses; siding or roofing installed on the sheathingâsometimes over strapping to create a rainscreen.
Metal is one of the few materials that can be used for both pitched roofs and flat roofs. Flat or low-slope roofs can be covered with steel, aluminum, zinc, or copper just like pitched roofs. However, metal shingles are not practical for flat roofing and so roofers recommend standing-seam and screw-down metal panels.