You can generate timber structure for walls and roofs in Autodesk Revit.
Ernst Schweizer AG
Designs roofs and calculate their rezistance to wind, snow and others.
Schletter Configurator is a tool designed for structural calculations.
Displays several design modules for each design issue, and helps fixing them.
Wood-E® Design Software is a convenient structural design program.
AppliCad Australia Pty Ltd
No restriction on number of roof elements, roof shape or type.
View the roof model and navigate the roof design in 3D.
SI Tools for Revit Structure is a Revit Structure add-in.
Roof COST Estimator contains industry standard user-modifiable unit cost data.
UCLA Dept. of Architecture and Urban Design
Draws a detail of wall or roof sections calculates U-value.
Hilti PROFIS DF Diaphragm can design steel deck roof and floor systems.
Thornberry Consulting, LLC
Geo estimator is a program which measures the roof areea of houses.
Takes the time and effort out of compiling roof cost estimates for customers.
TRI-DESIGN allows you to design the system optimally for the individual roof.
Itis a roof survey system that unites adjusters on a shared platform.