Damp Proofing Question

How to cure bathroom mould?

Hi, I have a property that is tenanted and there is mould consistently growing in the ensuite bathroom.

This has never happened before and seems to have started after having a pump added to the shower to increase power.

Since then mould is forming outside above the shower and around the window.

they are leaving the window open when they are showering and there is a small fan in there that they have on as well

They are great tenants so I have no reason to doubt this

Could you advise what should/ can be done and could this be down to the power shower?

3 Answers

Hi, you could try uprating your fan to take away more steam and with a timer to run on after the shower has been used. Hope this is helpful. Adrian

Answered 11th Jan 2013


Member since 28 Jun 2008

Hi, The power shower has increased the amount of warm water vapour within that area , As A D Johnson advises an upgrade to the electric fan would help .
The mould should be treated with a mould cure solution and any painted surfaces painted with bathroom paint with an anti mould additive . If there is an external wall available it would be beneficial to install a pssifying humidity vent (check on internet for info )
also when they come out of the ensuite get them to leave doors open to continue air circulation . advise them not to leave soaking towels to dry in that area .

Answered 11th Jan 2013


Member since 25 Nov 2009

Upgrade your extract fan, as previously suggested, but ensure the fan has a humidistat control which you can set to say 60% RH (relative humidity). This will mean that the fan will "kick in" when required and is not reliant on the tenants or "over runs"

Answered 13th Jan 2013

JW Surveys

Member since 11 Jan 2013

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