I have had a major leak on my 6 month old roof today. working in the room below and started to hear dripping during a heavy rain shower. Water then started to leak in quite a bit and then eased off even though it was still raining.
View media item 18125Rung the builder who constructed the roof to let him know and he is basically denying any responsibility for the problem saying that water is leaking through the pebbledash wall above and running down inside that.
This is the second time that the roof has leaked in the same place, previously happened 2 weeks after it was constructed and the problem was a gap in the mortar joint between the ridge tile and the wall. Have not had any leaks since until today.
I have been looking at the pebbledash wall and flashing tonight. The flashing has a 180mm coverage over the tiles with a 40mm upstand with probably 20mm going into the pebbledash wall taking into account the bend radius and probably 250mm width of flashing. I know that the slot for this had been cut with a grinder and pushed in and sealed with lead mastic.
There was previously a plastic roof with flashing and we never had any leaks. Previous flashing is still there but pushed against the wall and can still be seen above the plasterboard ceiling. Existing flashing shown here during construction
View media item 18126Should the new flashing have been inserted further into the wall (brick and stone wall behind the pebbledash) and a renderstop bead fitted as shown here
http://www.leadsheetassociation.org.uk/html/1398.html?
It might be a leak somewhere else, just want to get all angles covered .
cheers
View media item 18125Rung the builder who constructed the roof to let him know and he is basically denying any responsibility for the problem saying that water is leaking through the pebbledash wall above and running down inside that.
This is the second time that the roof has leaked in the same place, previously happened 2 weeks after it was constructed and the problem was a gap in the mortar joint between the ridge tile and the wall. Have not had any leaks since until today.
I have been looking at the pebbledash wall and flashing tonight. The flashing has a 180mm coverage over the tiles with a 40mm upstand with probably 20mm going into the pebbledash wall taking into account the bend radius and probably 250mm width of flashing. I know that the slot for this had been cut with a grinder and pushed in and sealed with lead mastic.
There was previously a plastic roof with flashing and we never had any leaks. Previous flashing is still there but pushed against the wall and can still be seen above the plasterboard ceiling. Existing flashing shown here during construction
View media item 18126Should the new flashing have been inserted further into the wall (brick and stone wall behind the pebbledash) and a renderstop bead fitted as shown here
http://www.leadsheetassociation.org.uk/html/1398.html?
It might be a leak somewhere else, just want to get all angles covered .
cheers