Both meanings date from the mid twentieth century the first slightly antedating the second.
													
																	Through the roof meaning. 
									
	
		
	
																	To get very angry. 
																	It probably is related to a literal roof of a house. 
																	A covering structure of any of various parts of the body roof of the skull. 
																	A canopy of leaves and branches. 
															
													
									
	
		
	
																	To rise to a very high level. 
																	To get very angry. 
																	To rise to a very high level. 
																	In 1946 eric hodgins in his popular novel mr. 
															
													
									
	
		
	
																	Also to lose one s temper. 
																	To reach extreme heights. 
																	The top over the passenger section of a vehicle. 
																	Origin of through the roof this expression originated in the first half of the 1900s. 
															
													
									
	
		
	
																	To rise to a very high level. 
																	Go through the roof meaning. 
																	Fuel prices have gone through the roof since last fall. 
																	Go through the roof definition. 
															
													
									
	
		
	
																	Something suggesting a roof. 
																	Blandings builds his dream house wrote the knapp sales curves were going through the roof.