can anyone tell me if the roof membrane lips over the lead or goes underneath it?
lead valleys
- Thread starter karlosmaximos
- Start date
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It goes over it. If it went under it and water got through a broken slate or tile and ran downwards towards the valley it would run off the membrane and under the lead rendering it useless so it lays over the lead and water will then run onto the lead and away.
Lead is used where a tile can not be bent or shaped.
Felt is fitted under the tiles.
WE would normally fit a strip of felt up the valley first. then site the valley, then slightly lap the horizontal felt runs onto the valley.
So, a bit of both really.
Felt is fitted under the tiles.
WE would normally fit a strip of felt up the valley first. then site the valley, then slightly lap the horizontal felt runs onto the valley.
So, a bit of both really.
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ive read somewhere that the lead should sit directly onto the valley board with no felt under it?
someone also suggested nailing a cement board on top of the lead valley to help when bedding the tiles,but this seems to defeat the object as you would be nailing through the lead?
someone also suggested nailing a cement board on top of the lead valley to help when bedding the tiles,but this seems to defeat the object as you would be nailing through the lead?
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