If you aren t sure which pipe collars or pipe.
													
																	Soil pipe through conservatory roof. 
									
	
		
	
																	Soil piping pipe supported on firm bed for entire length cpc 313 5 clean earth or granular fill for the first 12 of backfill above pipe in 6 layers cpc 314 4 four inches granular fill bed minimum for abs drain pipe per cpc 314 4 1. 
																	Roof pipe flashing is designed to create a watertight and weatherproof seal around the pipe ensuring there are no potential gaps for water ingress which can lead to roof damage. 
																	After climbing into the loft to install a tv ariel i ve noticed that the soil stack from the ensuite vents through the tiled roof but the main bathroom pipe stops about 2 feet above the joists insulation in the loft space with some sort of polystyrene cap on it. 
																	This video shows a quick and simpl. 
															
													
									
	
		
	
																	Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing. 
																	Use a pair of pliers to make a 1 2 upstand all round each hole so that the hole is now the same diameter of the soil pipe. 
																	Of cast iron soil pipe and fittings and through a program of research and the cooperative effort of soil pipe manufacturers it strives to improve the industry s products achieve standardization of cast iron soil pipe. 
																	This video illustrates a simple fix to extending the soil pipe on a roof. 
															
													
									
	
		
	
																	Cut two squares of lead flashing about 12 square but to suit your dimensions. 
																	Cut a circular hole in each about an inch less than the diameter of the soil pipe. 
																	Most building codes require a minimum clearance. 
																	From seldek s excellent pipe flashing to flatseal s superb black epdm flashing you ll find it all below. 
															
													
									
	
		
	
																	It will be necessary to insert a flat upvc panel into the polycarbonate or glazed roof then cut a hole in it to place the soil pipe through. 
																	For pricing and availability.