If you re installing a vent in a location in which there was no vent previously you ll have to cut an opening between roof joists to install the new unit.
													
																	How to replace a roof vent. 
									
	
		
	
																	Measure roof vent opening measure the opening for your roof vent on your camper. 
																	Remove any roofing nails and slide out the shingles. 
																	To replace a damaged roof vent jack on your home. 
																	Luckily these vents are easy to find at your local home improvement store and easy to install using just a few tools. 
															
													
									
	
		
	
																	How to replace the box vent on your roof. 
																	Standard roof vent openings are 14 1 4 x 14 1 4 inches. 
																	Here our roofing repair experts share the steps for how to install a roof vent.