Pailing is more formally know across the world as corrugated sheet metal. It sometimes goes by the alternate name of galvanise. It is used on many islands as roofing materials, but also as fencing for yards or as metal lining for other things such as a barbecue grill or material to cover holes on the ground. This metal is thin, and usually made out of tin or iron it is sometimes prone to rusting exposed to the weather and not properly painted. It easy to spot due to its rippled appearance.