We have lived in our house for around 18 months now. When we first moved in we noticed a small damp patch under the carpet to the lounge. Noticed this due to the Sky cable coming through the wall. Anyway we left this and have had no issues. Recently there has been a strong smell to the lounge. I decided to lift the carpet and found the timber to be rotten in sections.
From the photos attached you can see there is a small channel which runs under the timber which I believe could possible be causing the issue.
The floor construction is a solid concrete floor with timber over the top then carpet finish. We have no other areas in the lounge which struggle with damp/rot. Not really sure what this channel was for, possible a supply for something.
What would you suggest is the best cure? I was thinking of removing all damaged timber, in filling channel with concrete and then fitting new timber to affected area.
Any comments would be appreciated.