Chris61 Posted October 31 Share Posted October 31 (edited) hi , I hope someone can help me quickly with my problem. The house was built in 1977 and after a few years I have noticed that some areas inside the old roof membrane have fallen down and I have replaced some parts from the inside with CROMAR Vent 3 pro breathable membrane and applied 2 layer. I cut off the sides of the first layer and held them to the wooden fixing legs to allow the water to drain away. I attached the second layer of membrane to the sides and the support legs underneath with staples to make sure it was strong enough and the first layer would not fall off. I am sure this is not a permanent solution, but I'd like to know if it's ok to proceed like this so I can plan the replacement in the longer term. I did check no water coming inside or damp exists at the moment since 6-7 months the replacement.. And if you could tell me that this is something I can get an estimate for instead of replacing the whole roof, as it is a part that is only a problem, whereas other areas of the roof are not. Edited October 31 by Chris61 Link to comment Share on other sites More sharing options...
Redbeard Posted October 31 Share Posted October 31 (edited) Welcome! Frankly I'd have done nothing. 'Underfelt' (or, now, 'breather membrane') is a nice-to-have belt-and-braces luxury. My 130-year-old roof has no membrane. As long as the slates or tiles are in good order I would argue that you need do nothing. The membrane is there to catch the water if the tiles or slates fall off. Arguably, no slates falling off, less need for membrane. If the felt is crumbly it would, I suspect, be worth getting an asbestos test done since, if I remember correctly, some felts at some time were reinforced with asbestos fibres (hse.gov.uk's asbestos essentials section will tell if my memory is wrong). A bit more detail will allow us to give a more informed opinion. With the exception of the asbestos issue referred to above, no need to worry much (if at all) unless the external pics you haven't shown us yet show areas of slipped or damaged slates/tiles. Edited October 31 by Redbeard Link to comment Share on other sites More sharing options...
Chris61 Posted October 31 Author Share Posted October 31 hi thanks for your quick reply , the house ex-council built at 1975 (as per mortgage deed) , and its concrete tiles that I was taken some picture from outside after cleaning the area before applied the membrane from inside , hope this give more idea. Also an picture from inside before replacing old membrane that shows the water flowing hole Link to comment Share on other sites More sharing options...
Redbeard Posted October 31 Share Posted October 31 5 hours ago, Chris61 said: water flowing hole Tell us more about that. Where is it on the pics from outside? In general the tiles don't look too bad, although the bottom row LHS looks a little 'unhappy'. Link to comment Share on other sites More sharing options...
dpmiller Posted October 31 Share Posted October 31 has the flashing behind the vent stack just drooped a bit? Link to comment Share on other sites More sharing options...
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