Describir: Simplified design of roof trusses for architects and builders

 _    _    _    _     ______    ______   __   __    _____     _  __    ______  
| \  / || | || | ||  /_   _//  /_   _//  \ \\/ //  |  ___||  | |/ //  /_   _// 
|  \/  || | || | ||  `-| |,-    -| ||-    \   //   | ||__    | ' //    -| ||-  
| .  . || | \\_/ ||    | ||     _| ||_    / . \\   | ||__    | . \\    _| ||_  
|_|\/|_||  \____//     |_||    /_____//  /_//\_\\  |_____||  |_|\_\\  /_____// 
`-`  `-`    `---`      `-`'    `-----`   `-`  --`  `-----`   `-` --`  `-----`