IES-VE User Forum

Hello everybody,
I am trying to run a SBEM compliance.
I have set everything but when I want to run my simulation the button "CO2 Emissions Part L compliance" is grey. So I suppose I have to set the type of building on the left..because its not set (but I have set everything in the room templates). But everytime I do that IES crashes and when I open my project again I have lost all my construction materials and the message "corrupt construction database:construction xxxxxxx refers to missing material xxxxx. please inform IES ltd".
Which is the problem? How can I avoid this. Have I done any mistake?
Thank you

I have not heard of this before. It could be there is a problem with the geometry. Have you performed a check in ModelIT? If not then you can do this by selecting ModelIT > Settings > Tick on Intersections & Surfaces and then select Check which will perform a scan on your model.



At the end a text file will be produced reporting the following.

Intersections
Zero Volume
Scanning Model for openings (>10) (you can ignore this one)
Slivers
Zero Area surfaces
Non-Planar surfaces
External Holes
Unmatched adjacencies

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.