We use 2 clips per 12 of tile.
First row of tile roof.
The two pieces should meet neatly at the corners.
Just short of the centre of the gutter.
The usual way to position the first rows of tile is to snap chalk lines.
Working with roof tiles is a lot easier when you know a couple of basic tricks.
This is because tile roofs tend to fail around the perimeter where wind uplift is more severe.
If you are transitioning from a light roof to a tile roof the weight difference will be substantial.
While wind resistance is improved using foam it is a more expensive alternative to screws and nails and some building codes do require that the first row of tiles is mechanically fastened as well.
Setting out up the roof gauge set the first batten at eaves to allow the tails of the eaves course tiles to overhang the fascia by 40 to 45mm ie.
This video from bunnings shows you how to take a tile off and replace it prop.
If it is a hip roof allow about a tab width to overhang onto the next section of roof at the hip to help strengthen the joint there.
But there are two problems with that method.
Increasingly popular with designers architects and home buyers a flat tile roof offers a crisp clean appearance that perfectly complements both traditional and modern architecture.
Install the eave piece first then the rake piece over it.
Underlay and tile battens.
Guide boards solve both problems.
For a relatively average house with a 1 500 square foot roof the total of underlayment and tiles will equal something approaching 8 tons in weight.
Second the first row of tile can move as you set the next row.
First chalk lines are hard to see if you ve slopped thin set over them.
Repeat all of the way to the ridge.
Set out the first second and all the rest of slates on a pitched roof.
The fairly cheap and common shingle roofs that many people have are quite light.
Continue this process to the 5th row then begin the same process as the first row beginning with a full shingle and a chalk mark.
Apply thin set to next row on the wall and again backbutter the tiles to ensure 90 100 coverage.
Drive nails at high points on the underlying roof the bottoms of the shingles.
At the eave and the rake install u shape drip edge flashing made for reroof jobs.
Scrape out excess thin set between tiles with the carpet knife but be careful not to puncture your waterproofing.
Set out the first second and all the rest of slates on a pitched roof.
Guidance on the installation of underlay and tile battens is given in section 7.