Leaking slate roof

[AndersonC]

Morning.

Due to this fantastic bout of late spring weather I have a couple of water marks on a ceiling below slate-tiled roof. I've noticed that in the region near the water marks the tiles do not look as if they are seated properly.

As far as I can make out in areas where the tiles are seated right there is no water marking.

The real problem is that the water marks are on part of the kitchen ceiling but the "dry" bit is covering an outbuilding.

My proposed solutions are:-

1. Try to re-seat the slates above the area where the water marks are and hope (naively I suppose) that it goes away,

2. Remove all the slates and battens, felt the roof, re-batten and then put the slates back on and re-point the ridge tiles (on a dry weekend!).

Is Option 2 as simple as it sounds? I have read in another thread something about slate and felt not "working" together - is this right?

Thanks for any advice

 

[JohnD]

you say slates and you say tiles, which is it? How old is the roof and how damaged are the slates/tiles? Are they natural or synthetic? Are the nails rusty?

How dark it the loft?

 

[AndersonC]

Sorry they are slates.

There is no real loft in this circumstance as it is a roof over a single storey outbuilding which also covers part of the kitchen. There is a fairly simple wooden "ceiling" lining inside the outbuilding ceiling which I have considered ripping out for ventilation purposes.

I have not been able to establish the condition of the nails yet.

Thanks for your questions