Get weighted score for data coverage

I have data on buildings and their systems.

In addition, I created a "dictionary" of systems with their score.
I would like to calculate using DAX or M script the total weighted score of a building.
Example of the data and the result I want.

DAX I already made:

Total Score = (COUNT(Buildings[Elevator])*LOOKUPVALUE(DictionaryTable[Weight (Score)],DictionaryTable[Field name], "Elevator"))

The issue with this DAX is that I only calculated "Elevator", I would like to calculate all the fields on the dictionary Dynamically. 
If there's an option to write DAX like this, it would be great.

Total Score = (COUNT(Buildings[$(Field Name)])*LOOKUPVALUE(DictionaryTable[Weight (Score)],DictionaryTable[Field name], $(Field Name)))

 Thanks, Itay.