Roof repair advice

[acanthophippium]

Sorry if posted this question on the wrong forums. I have recently moved into a 100yo house. The felted slate tile roof seems in very good nick and the survey at time of purchase found no problems. Recently we developed dampness in a bathroom and a roofer had a look and did some repairs to pointing around a chimney at a corner of the house and adjusted the lead in some way. There was exceptionally heavy rain for days before the damp appeared in the bathroom and he said he thought rain was getting in under the tiles at the edges when it was very windy. He said he was 95% sure this would solve the problem which was obviously chronic as there was some damage (rot) to some of the wooden beams in the roof space, just at the corner of the house, but 'nothing serious'. The latter has alarmed me somewhat and I went up to roof space for a closer look. The main beams seem fine and are obviously treated, but there is some rotten wood right at the corner, underneath where bricks from an unused chimney begin and also behind an adjacent gutter. I suspect the fascia board is rotten and can see the white gutter through a small hole in it, again confined to this corner of the roof. One foot away from this area, the wood seems sound. Apologies firstly for my somehwat vague and ill-informed description of the problem. I have no expertise or experience in this field (or diy in general!) and hence am looking for some advice and hopefully reassurance. Does this sound like a major problem which I need someone else to look at for a second opinion, or does a little rotten wood under an otherwise very stable-seeming chimney require no intervention at this stage other than to fix the leaking roof causing it? I am awaiting rain to see if the latter has been successful but regardless have concerns about the wood damage. Roofer seemed knowledgeable and trustworthy but I have no idea about these things.

[acanthophippium]

Just now, acanthophippium said:

Sorry if posted this question on the wrong forums. I have recently moved into a 100yo house. The felted slate tile roof seems in very good nick and the survey at time of purchase found no problems. Recently we developed dampness in a bathroom and a roofer had a look and did some repairs to pointing around a chimney at a corner of the house and adjusted the lead in some way. There was exceptionally heavy rain for days before the damp appeared in the bathroom and he said he thought rain was getting in under the tiles at the edges when it was very windy. He said he was 95% sure this would solve the problem which was obviously chronic as there was some damage (rot) to some of the wooden beams in the roof space, just at the corner of the house, but 'nothing serious'. The latter has alarmed me somewhat and I went up to roof space for a closer look. The main beams seem fine and are obviously treated, but there is some rotten wood right at the corner, underneath where bricks from an unused chimney begin and also behind an adjacent gutter. I suspect the fascia board is rotten and can see the white gutter through a small hole in it, again confined to this corner of the roof. One foot away from this area, the wood seems sound. Apologies firstly for my somehwat vague and ill-informed description of the problem. I have no expertise or experience in this field (or diy in general!) and hence am looking for some advice and hopefully reassurance. Does this sound like a major problem which I need someone else to look at for a second opinion, or does a little rotten wood under an otherwise very stable-seeming chimney require no intervention at this stage other than to fix the leaking roof causing it? I am awaiting rain to see https://www.roofersofarlington.com/ if the latter has been successful but regardless have concerns about the wood damage. Roofer seemed knowledgeable and trustworthy but I have no idea about these things.

thanks in advance for any help

Edited February 10 by acanthophippium

[Harnser]

https://www.roofersofarlington.com/ are a company in Arlington, Virginia, USA

Why would you be posting on a forum aimed at British expats living in France?

Unless it's for the purpose of spamming!