I have a slowly worsening leak on the top room in my house. The house was built in 2003 with a study in roof space of the house. Several years ago a faint mark appeared on the inside slope of the roof(highlighted blue). A year or so later, marks appeared above the 2 windows and then more recently significant shadow marks appeared near the chimney (highlighted red). This has spread further and damp readings continue to show figures of between 15% and 23%.
I have called out some roofing guys and they have taken a look and applied some sealant in a few places but this has not helped at all. I have used a drone to take further pictures as attached but these don't really seem to show a clear cause. There does seem to be some faint cracks on the chimney and a few marks but I'm not convinced these would explain marks of this extent.
Any suggestions of what to do next or possible causes would be very gratefully appreciated.
roof leak cause?
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roof leak cause?
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roof leak cause?
I must admit my first thought was the lead flashing was allowing a steady drip in, or the chimney flaunching is cracked, but looking closely at the photos it is not obvious at all. The water stains would suggest a lead flashing crack in the fold where it tucks under the tile and as water always finds the easiest way down a crack will let in a lot of moisture over time. It is difficult to tell from your photos alone and it really needs hands on, close inspection by a proper roofer who does lead work. Sorry, this is not much help.
DWD
DWD
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- yawnbros (Tue Dec 03, 2019 8:22 pm)
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