This will bring up the following dialog. Select Intersection & Surfaces and then ‘Check’
and the scan will start.
At the end a text file will be produced reporting the following.
Zero Area surfaces
If you have the time then we would advise fixing all reported problems but for speed you can focus more serious problems like Non Planer Surfaces, Zero Volume and Zero Surface Area first and then think about fixing Intersecting spaces and Unmatched Adjacencies.
Non Planer Surfaces: These are usually caused by vertices being moved around to invalid areas causing the surface to warp, you need to delete these zones and redraw.
Zero Volume: The zero volume report indicates problem zones that contain a volume of 0m³ (or ft³ in IP) or negative volume. This is caused by invalid geometry (usually import from Revit/SketchUp)... The solution is to redraw the space within ModelIT.
Zero Surface Area: Zero surface area highlights zones that have surfaces of area 0m² or less.. Again, re-drawing the zone is the solution to fix this problem.
Ideally you want the geometry to be as perfect as possible; you may not get any errors but even minor geometry problems can affect the accuracy of the thermal simulation.