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Damp/condensation solutions

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Author Topic: Damp/condensation solutions  (Read 80 times)
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« on: January 07, 2022, 11:47:35 AM »

Hi All,
   As landlord I'm currently dealing with the perennial problem of damp/condensation in a victorian terrace bedrooms. I will be furnishing the tenants with a dehumidifier and hydrometer to help them understand and manage humidity, but as is life this is not straight forward. I have been doing some reading about adding a positive pressure vent fan in the loft (https://www.extractorfanworld.co.uk/positive-pressure-units-68-c.asp) or heat/air exchanges in bedrooms (https://www.blauberg.co.uk) to really sort this issue.

I've given previous advice about how to better manage the issue but it only goes so far in practice!!! I'm sure I will continue 'advising' but with limited affect. The bottom line is the victorian solid brick house isn't fully compatible with modern living. Trickle vents, bath fans etc are all in place but all have their limitations.

Both vent solutions obviously come at some cost, so I'm asking if any landlords have tried such systems and are they really any good?

Thanks
Steve

 
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« Reply #1 on: January 07, 2022, 06:40:12 PM »

I've no personal experience but I don't think you'd gain much. Heat exchange systems only really make sense in a well insulated, airtight property ... which doesn't particularly sound like the average Victorian terrace. If the problem is condensation from moist air against a cold wall, then all you can do is make the air less moist or the wall less cold. A dehumidifier or two will definitely help, as will doing all you can to make the bathroom extractor fan quiet (so the tenants don't override it) and setting the run-on time for a good 15 minutes or more. I take it you're not currently in a position to do anything about wall insulation?
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« Reply #2 on: January 09, 2022, 12:22:57 PM »

Hi, Thanks for the response. As you say the current answer really lies with practical house management. The house is an end terrace so the back 2 bedrooms are out of sun (what sun!) until afternoon. Additional wall insulation fitted on the outside might be a longer term option. Guess that would be a cost v benefit consideration. Any idea of costs involved?
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« Reply #3 on: January 09, 2022, 03:22:05 PM »

My own house is end of terrace,late Victorian.I have never had problems with mould.Mind you,it is rather draughty and I open windows daily.My previous house was a new build,very well-insulated and cheap to heat,but I had to keep tea towels on the window sills,and mould  formed around the windows The few tenants I have had with mould have been those on low incomes,refusing to have the heating on and keeping the windows shut.I have had people turning off the extractor fans to save on electricity
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