The slope of a roof.
													
																	Roof terminology construction. 
									
	
		
	
																	Cupola a structure rising above the main roof. 
																	A low wall that projects beyond the eves at the edge of a roof. 
																	4 in a membrane roof system. 
																	Pitched or sloping roofs. 
															
													
									
	
		
	
																	The terms pitch and slope are simply two different ways of expressing the same measurement. 
																	A low slope is when a roof pitch is less than 30 degrees and less than 4 12. 
																	The process of creating a asphalt shingle. 
																	Dead level a roof or section of roof without any pitch. 
															
													
									
	
		
	
																	A narrow plastic wood or metal bar which is used to fasten or hold the roof membrane and or base flashing in place. 
																	The same roof has a 4 12 or 1 3 pitch. 
																	A roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run. 
																	There are two main types of roof construction. 
															
													
									
	
		
	
																	2 in a metal roof. 
																	A roof that has two pitches on each slope. 
																	4 12 to 6 12 steep slope. 
																	A horizontal timber beam providing intermediate. 
															
													
									
	
		
	
																	As the name suggests a flat roof is specially designed to sit as flat as possible on the top of a property typically having a pitch no greater than 15. 
																	A cricket is generally not required. 
																	A roof pitch that is between 30 to 45 degrees. 
																	This is the. 
															
													
									
	
		
	
																	Cricket a small peaked saddle constructed on the top of the basic roof and behind the chimney. 
																	These roofs often include living accommodation in the roof void. 
																	A purlin normally supports the rafters where the two pitches on the same elevation meet. 
																	It is usually ornamental but may be used for ventilation. 
															
													
									
	
		
	
																	A flat roof is made of six basic components. 
																	The first material is the fiberglass mat which get loaded into a roofing machine. 
																	A strip of wood usually set in or over the structural deck used to elevate and or attach a primary roof covering such as tile. 
																	A metal closure set over or covering the joint between adjacent metal panels.