Cupola a relatively small roofed structure generally set on the ridge or peak of a main roof area.
													
																	Pitched roof roof structure terminology. 
									
	
		
	
																	The slope of a roof. 
																	Easily identified by their triangular shape gable roofs are generally two sided with a peak formed at the top hip. 
																	All four sides slope downwards and are all equal in length to form a ridge at the top of the roof. 
																	A horizontal timber beam providing intermediate. 
															
													
									
	
		
	
																	This is the most common roof shape with equal pitches on either side i e. 
																	The butt of a shingle is the end that faces down roof. 
																	Collar tie also collar beam in profile the framing of a conventional pitched roof forms a triangle. 
																	A roof that has two pitches on each slope. 
															
													
									
	
		
	
																	A low wall that projects beyond the eves at the edge of a roof. 
																	Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist. 
																	The inherent strength and integrity of the triangular form makes the roof a sound structure. 
																	These roofs often include living accommodation in the roof void. 
															
													
									
	
		
	
																	Angle f equals angle g. 
																	This truss form is often introduced into domestic housing in conjunction with the conventional duo pitched roof to form an interesting roof line. 
																	A purlin normally supports the rafters where the two pitches on the same elevation meet. 
																	2 1 duo pitched roof. 
															
													
									
	
		
	
																	The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness. 
																	Angle a equals angle b. 
																	A pitched roof is a roof that slopes downwards typically in two parts at an angle from a central ridge but sometimes in one part from one edge to another. 
																	Part of roof construction. 
															
													
									
	
		
	
																	2 4 truncated duo pitched roof.