Start at the second tile at one end of the ridge.
How to fit roof tiles.
Subtract 16 inches and divide the result by 8 to determine the number of tiles to install.
Secure the underlayment with nails that are at least 2 inches from the edge of the roof.
Roofing batten common sizes of tile lath slate lath or tile batten.
If your roof has a steep slope install the battens next which are thin strips of material that run horizontally along the roof.
In fact tile roofing costs can vary from as low as 400 to as much as 1 100 or more per square depending on factors such as roof pitch custom tiles and size.
Measure the distance across the ridge from the outer ends of the first tiles at each end of the ridge.
An awful lot of people including builders and roofers get the layout of a new roof wrong right from the start subsequently they end up with a leaking roof or one that just looks awful.
How to space roof tiles and space roof battens or laths.