Used when positive drainage is required to one side only. This shape is often used for Industrial, Commerical and Farm applications.

For positive roof drainage. Many variations are possible as shown, the selected shape will depend on the particulars of the project. The depth for estimating span to depth ratio is measured at 1/3 span from the smaller end.

For positive roof drainage. Many variations are possible as shown, the selected shape will depend on the particulars of the project. The depth for estimating span to depth ratio is measured at 1/3 span from the smaller end.