Describir: Simplified design of roof trusses for architects and builders

  _____     ______              _____     _____     _____      _____  
 / ____||  /_   _//   ____     |  ___||  /  ___||  |  ___||   / ___// 
/ //---`'   -| ||-   |    \\   | ||__   | // __    | ||__     \___ \\ 
\ \\___     _| ||_   | [] ||   | ||__   | \\_\ ||  | ||__     /    // 
 \_____||  /_____//  |  __//   |_____||  \____//   |_____||  /____//  
  `----`   `-----`   |_|`-`    `-----`    `---`    `-----`  `-----`   
                     `-`                                              
  ______  
 /_   _// 
  -| ||-  
  _| ||_  
 /_____// 
 `-----`