Do this using two pieces of timber to hold them up.
How to replace a tile on a tile roof.
Roof tiles these come in many variations of manufacturer shape size and colour the make and model of which can usually be found on the underneath of the tile when it has been removed.
3 pull off any broken.
To begin replacing the broken tile dab a small amount of silicone at the top of the empty space where the new tile will be placed slightly underneath the underlap of the top right adjoining tile that is still propped up.
Do the same with the tile located directly to the left of the loose tile and the second pry bar.
Here are a selection of common roof tiles for identification approximate sizes and anatomy.
Also dab a small amount of silicone on the top left corner of the new tile.
Repeat along the entire length of both diagonals until you re able to remove all of the tile pieces.
Put a cold chisel on the diagonal near the center and strike it with a hammer.
Set the bend end of the pry bar gently down on the roof to prop the tile up.
Often roof tiles from different manufacturers may be a direct replacement or an as near as dammit option if.
Put on your safety glasses and strike the center of the tile with a center punch.