A reliable roof membrane and details that minimize any damage to the.
													
																	Building deck over garage roof. 
									
	
		
	
																	If your garage has a flat roof or if you re planning to build a garage that s next to your home but below the level of the main floor it s entirely possible to build a deck on your garage roof. 
																	I am working on a roof deck. 
																	What s even better is the fact that building a deck over the roof could save you money as opposed to building one that s separate from. 
																	You can build a deck on a garage provided you have a garage with a flat roof or if you plan to build a garage that will be adjacent to the house but below the level of the main floor. 
															
													
									
	
		
	
																	Consult with a qualified contractor to see whether your roof is right for a deck. 
																	Updated december 11 2017. 
																	I repair replace and build decks i do not notch my 4x post but when it is there already i like to use metal bracket on the two sides and if possible go underneath the deck and beef up the framework and add more support were i can the main idea in my opinion on rail system and support depends on how high the deck is. 
																	Most elevators cannot handle a 12 long 2 x 8 deck joist. 
															
													
									
	
		
	
																	There are tons of reasons to build a deck over a roof from creating a romantic outdoor breakfast nook off a second floor master bedroom to providing a second floor porch on a city house. 
																	It is possible to build using shorter lengths of lumber but working with long lengths makes deck building much quicker and easier. 
																	A deck atop your garage may well save money compared to a deck build separate from your garage. 
																	Building a deck over a flat roof is very similar to building a deck over a concrete patio. 
															
													
									
	
		
	
																	These decks are often referred to as floating as they are not secured in place as a stand alone structure.