Use 1 2 in 1 3 cm plywood to cover the entire surface of your roof.
													
																	Roof construction plans. 
									
	
		
	
																	Flat roofs are always built at a slight incline at least 1 8 inch per foot. 
																	Use construction nails 6 in 15 cm apart to secure the plywood around the outer perimeter and along each support. 
																	A roof provides protection from the elements and precipitation helps drain water away from a structure and provides insulation that helps keep the interior of a building warm or cool depending on the season. 
																	It is the form most commonly used by. 
															
													
									
	
		
	
																	Construction plans blueprints are scaled down representations of the final project at a ratio of the actual size. 
																	A roof is much more than just the decorative top of a building. 
																	When construction plans are scaled it helps to put the part into a print size drawing that is easily read by the crew. 
																	An example of each is shown in figure 2 1. 
															
													
									
	
		
	
																	When framing a flat roof you will need to create a slight incline. 
																	This will help you create a flat roof framing plan. 
																	Also different architectural styles will use the same type of roof. 
																	You can do this with a foam layer that exactly fits your roof. 
															
													
									
	
		
	
																	Place a piece of the plywood on the bottom corner of your roof making sure the edges are on a rafter beam. 
																	Another common design in the northeast is the saltbox which is a gable roof with one longer side. 
																	For example 1 8 1 one eighth inch equals one foot. 
																	Put roof sheathing on top of your roof. 
															
													
									
	
		
	
																	Intricate roofs have many parts that incorporate several of the basic roof designs such as a gable roof sitting atop a gambrel or variations of the gable valley roof design using one or a variety of different types of roof trusses also see our very detailed diagrams showing the different parts of a roof truss. 
																	In many cases with purchased house plans the details of the roof construction including rafter design are included. 
																	Gable a gable roof has a ridge at the center and slopes in two directions.