Firstly get two of your roof tiles and either two full battens or two offcuts of batten and place them onto the roof one above the other.
First row of roof tiles.
The exposure on the first course of slates may be reduced by dropping the chalk line for the top of the second course of slates in order to increase the headlap on the starter course.
Set out the first second and all the rest of slates on a pitched roof.
Position the first roll of underlayment at one side of the roof perpendicular to the lower edge the eave of the roof.
The top row of tiles at the ridge is also made up of half tiles to give the next row down a double lap.
The height distance up the roof of the starter slate must be at least 3 inches greater than the vertical exposure on the first course of slate.
Underlay and tile battens.
Just short of the centre of the gutter.
Lay the first row of shingles directly covering the narrow starter row.
The lowest row of tiles at the fascia board is made up of shorter tiles to provide the double lap for the first row of full ones the lower edges of these short tiles and the first row of full tiles should be the same.
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.
Although house models from indus valley civilization show that the houses were flat roofed harappan sites such as alamgirpur dated 2600 2200 bce provide evidence of roof tiles.
Tiled roofs first replaced thatched roofs in ancient mesopotamia.
Snap a horizontal chalk line over the starting row to use as a guide.
Cut six inches off the length of the first starter shingle nailed on then use the rest of them full size.
Guidance on the installation of underlay and tile battens is given in section 7.
See below for a shopping list tools and steps subscr.
As you roll out the underlay keep the bottom edge of the material aligned with the edge of the eave but above any metal or synthetic edging that may cover the borders of the eave.
Make sure the tile lugs are seated snuggly onto the top edges of the battens.
Shifting them in this way will join the ends of the first regular row of shingles placed over the starter shingles.