There are lots of different ways to make a roof.
Follow your construction plans carefully. The most common roof type extends the concrete frame of the bottle school and lays corrugated metal sheets across metal beams. As with the metal work for the doors and windows, you must have a skilled welder to do this who has years of experience creating roofs with metal sheeting.

The roof must be a secure structure that will not collapse from heavy rains, wind or falling objects, therefore it must be constructed properly by a skilled technician. Roofing materials and design vary based on climate. Consult local customs and plan your building to accommodate the style. Hug It Forward uses metal sheeting for its Bottle Schools.