The tile roof institute tri concrete and clay tile installation manual for moderate climate regions allows for open flashing exposed and closed tiles meet over flashing valley installations.
How to tile roof valley.
Interleave mitred tiles with metal soakers extending a minimum 150mm to each side of valley.
Cut tile and a half tiles and fix to form a straight weathertight close mitred junction.
This video shows the traditional and best way to repair a lead valley on a roof.
Installers develop a preference based on their experience with the local climate.
A scaffold tower has been used for access in this video.
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Installing a close cut grp valley with redland 49 tiles.
Never try and work on a roof from a ladder as a.
Valley with metal lining.
A minimum of a 3 inch overlap is required for the tiles.
And either an organic or modified underlayment depending on whether tiles or shingles are being installed.
Up next how to tile a roof with clay or concrete tiles new roof duration.
Download dwg file.
This video shows how to repoint a lead roof valley.
Fix soakers by turning down over heads of mitred tiles.
Cover valley with a strip of underlay not less than 600mm wide underlapping general underlay.
Use two tiles to determine the spacing required for the battens.