On top of the 2 6 will be 3 4 subfloor thinset cement board redgard thinset tile.
													
																	Do i need cement board under floor tile. 
									
	
		
	
																	If i thinset the cement board down using a 1 4 x 1 4 trowel and screw it every 8 will the thinset end up being 1 8 thick. 
																	This is the industry standard most preferred by construction pros when installing ceramic or porcelain tile backer board comes in four foot by eight foot and three foot by five. 
																	I d like to get as close as possible to matching the height of the existing tile. 
																	Do it yourselfers can use either 1 2 or 1 4 inch cement board in certain applications while other scenarios mandate 1 2 inch board. 
															
													
									
	
		
	
																	Cement board is an easily installed diy tile underlayment providing a stable dependable tile setting substrate while eliminating the complicated lath and mortar floating process. 
																	This is a distinct advantage over plywood and drywall.