External laying: Prepare ground and Screed area to be tiled
Interior laying: Terracotta tiles can be used with the following surfaces;
Concrete floors
Floor screed
Fleximat
18mm WBP Plywood
Tile backer board
Shower liner
Under floor heating
Useful links;
Paving Expert - AJ McCormack & Son - Paving and Drainage Advice - Home Page
A comprehensive guide to paving, residential and garden drainage, other hard-landscaping materials, and methods commonly used in the UK