It is also important aesthetically so that the tiles on the finished roof are equally spaced.
Setting out rosemary roof tiles.
How to slate a roof http www fixmyroof co uk videos and guides pitched roof slate a roof this video shows you the basics of how to set out a roof for slat.
How to tile a roof if you would prefer to read how to tile a roof and see more help please visit this link unless you found this video via my website.
Laying the tiles plain tiles are laid on the battens in a brick bond pattern i e.
Tiles must be laid broken bond in a half bond pattern but the side lap may be reduced to a minimum of a third of the width of the tile 55 mm in some circumstances e g.
Just short of the centre of the gutter.
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Tiles must be hung on their nibs.
This is a survey of a traditional roof with a covering of clay rosemary roof tiles and clay ridge tiles.
These tiling guides were produced by the technical committee of what used to be the clay roofing tile council crtc.
Set the last batten at the ridge so that the ridge tiles will overlap the top course of tiles by at least 75mm.
To ensure this the battens should be at least 1 2m long.
With the joints between them aligned with the centre of the tiles above and below and with about 3mm between the sides.
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.