What is the best way to make a paved surface with 10cm of spaces between each 30cmx30xm paving block?
Also, part of this floor construction needs to be sloped.
You will need to create a custom model fill pattern that can be applied to a floor object. The floor objects in Revit can be sloped. You can also use the shape editing tool to give a floor object slope.
If this is an ourdoor space like a pation you may also consider using a sub-region on a toposurface object to define the patio. This will retain the slope of the toposurface. One drawback with this method is the fact toposurface object can'tr display surface patterns.
A landscaper will be able to evaluate the slope of your land and make recommendations for improvement. Draining water from your home includes a quality gutter system, sloping of your yard and installing a drainage system underground. A landscaper can help you complete many of these tasks so that you are able to limit the amount of exposure your home has to standing water.