Install j channel along the.
													
																	How to install j channel for metal roof. 
									
	
		
	
																	On corners notch the top and backside of the j channel the width of corner boards and cut the bottom to extend past corner boards the width of the next piece. 
																	To splice the j channel follow these steps. 
																	Here again leave a 1 4 gap between the j channel and the cornerposts. 
																	Drill in a 2 inch screw through the first hole at the top of the j channel. 
															
													
									
	
		
	
																	Nail the j trim horizontally along both sides of any interior corners. 
																	The corner posts are the pieces of siding that will. 
																	J channels are designed to be used in metal roofing applications. 
																	J channel is an accessory to the siding that s used to. 
															
													
									
	
		
	
																	Cut a 45 degree angle on adjoining pieces to give a mock miter appearance to corners. 
																	Insert the screw through the fascia. 
																	Continue down the first piece and insert a screw every 12 inches. 
																	Install inverted j channel along the top of the wall under the eave. 
															
													
									
	
		
	
																	The metal siding will slide into the j trim so. 
																	Move down 12 inches and insert another screw through the hole at the top of the j channel. 
																	Attach the j trim along the line that will form the upper edge of the metal siding. 
																	Install the corner posts that came with your metal siding first. 
															
													
									
	
		
	
																	Nail j channel against the existing soffit into the soffit framing. 
																	Applying the j channel 1. 
																	At an interior corner the siding. 
																	The j channel flashing metal acts as a receiver for metal roof panels ridge caps and headwall flashing it also helps waterproofing a roof since its installation is water directional.