Can anyone advise the best course of action to get rid of mould growth
beneath a bay window?
Not sure whether it's caused by penetration (outside of the house is
rendered), or whether condensation is the culprit (although there's no
conspicuous sign of condensation elsewhere.

Can be seen he http://allegoric.us/1b5hDWP

On Tuesday 19 November 2013 11:19 Apellation Controlee wrote in uk.d-i-y:


Can anyone advise the best course of action to get rid of mould growth
beneath a bay window?
Not sure whether it's caused by penetration (outside of the house is
rendered), or whether condensation is the culprit (although there's no
conspicuous sign of condensation elsewhere.

Can be seen he http://allegoric.us/1b5hDWP

First a wipe down with bleach.

Second - that's a bedroom? Stick a humidity meter in there.

My ali windows need a bleach once a year due to condensation - a sleeping
body or two emits a *lot* of water vapour and if that wayy is solid brick,
so cold, it will get condensation on a regular basis that may not fully dry.

My walls are cavity and are fine - just the bay windows...

If a humidy meter is reading high all the time, a dehumidifier might be one
solution (run in the day for a while) or opening a window a crack.

You may find that next time you paint, using a more wipeable paint like
Dulux Endurance (what I have) means that any off bits of mould might wipe
off better than a matt paint.


--
Tim Watts Personal Blog: http://squiddy.blog.dionic.net/

http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage

On Tuesday 19 November 2013 11:52 Tim Watts wrote in uk.d-i-y:

On Tuesday 19 November 2013 11:19 Apellation Controlee wrote in uk.d-i-y:


Can anyone advise the best course of action to get rid of mould growth
beneath a bay window?
Not sure whether it's caused by penetration (outside of the house is
rendered), or whether condensation is the culprit (although there's no
conspicuous sign of condensation elsewhere.

Can be seen he http://allegoric.us/1b5hDWP

First a wipe down with bleach.

Second - that's a bedroom? Stick a humidity meter in there.

My ali windows need a bleach once a year due to condensation - a sleeping
body or two emits a *lot* of water vapour and if that wayy is solid brick,
^ wall
so cold, it will get condensation on a regular basis that may not fully
dry.

My walls are cavity and are fine - just the bay windows...

If a humidy meter is reading high all the time, a dehumidifier might be
one solution (run in the day for a while) or opening a window a crack.

You may find that next time you paint, using a more wipeable paint like
Dulux Endurance (what I have) means that any off bits of mould might wipe
off better than a matt paint.


--
Tim Watts Personal Blog: http://squiddy.blog.dionic.net/

http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage

On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:
Can anyone advise the best course of action to get rid of mould growth

beneath a bay window?

Not sure whether it's caused by penetration (outside of the house is

rendered), or whether condensation is the culprit (although there's no

conspicuous sign of condensation elsewhere.



Can be seen he http://allegoric.us/1b5hDWP

It could be condensation. Under a bay window it's not uncommon to find an extra thin wall, single brick even, especially in lower spec period houses.

Yes, solid wals on north facing sides of houses are a pain. I have one of
these, no matter what the outside finish, short of lots of insulation would
fix it.
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Tim Watts" wrote in message
...
On Tuesday 19 November 2013 11:19 Apellation Controlee wrote in uk.d-i-y:


Can anyone advise the best course of action to get rid of mould growth
beneath a bay window?
Not sure whether it's caused by penetration (outside of the house is
rendered), or whether condensation is the culprit (although there's no
conspicuous sign of condensation elsewhere.

Can be seen he http://allegoric.us/1b5hDWP

First a wipe down with bleach.

Second - that's a bedroom? Stick a humidity meter in there.

My ali windows need a bleach once a year due to condensation - a sleeping
body or two emits a *lot* of water vapour and if that wayy is solid brick,
so cold, it will get condensation on a regular basis that may not fully
dry.

My walls are cavity and are fine - just the bay windows...

If a humidy meter is reading high all the time, a dehumidifier might be
one
solution (run in the day for a while) or opening a window a crack.

You may find that next time you paint, using a more wipeable paint like
Dulux Endurance (what I have) means that any off bits of mould might wipe
off better than a matt paint.


--
Tim Watts Personal Blog: http://squiddy.blog.dionic.net/

http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal coverage

On 19/11/2013 12:42, wrote:
On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:
Can anyone advise the best course of action to get rid of mould growth

beneath a bay window?

Not sure whether it's caused by penetration (outside of the house is

rendered), or whether condensation is the culprit (although there's no

conspicuous sign of condensation elsewhere.



Can be seen he http://allegoric.us/1b5hDWP

It could be condensation. Under a bay window it's not uncommon to find an extra thin wall, single brick even, especially in lower spec period houses.

There appears to be more at the lower levels, any chance it could be
rising damp? Just a thought.

On Tuesday, November 19, 2013 7:26:17 PM UTC, ss wrote:
On 19/11/2013 12:42, wrote:

On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:

Can anyone advise the best course of action to get rid of mould growth



beneath a bay window?



Not sure whether it's caused by penetration (outside of the house is



rendered), or whether condensation is the culprit (although there's no



conspicuous sign of condensation elsewhere.







Can be seen he http://allegoric.us/1b5hDWP



It could be condensation. Under a bay window it's not uncommon to find an extra thin wall, single brick even, especially in lower spec period houses.



There appears to be more at the lower levels, any chance it could be

rising damp? Just a thought.

9 feet high and rising...?

Jim K

Apellation Controlee wrote:

Can anyone advise the best course of action to get rid of mould growth
beneath a bay window?
Not sure whether it's caused by penetration (outside of the house is
rendered), or whether condensation is the culprit (although there's no
conspicuous sign of condensation elsewhere.

There seems to be quite a lot of condesnation on the bottom of the
window pane ...

On 19/11/2013 19:35, Jim K wrote:
On Tuesday, November 19, 2013 7:26:17 PM UTC, ss wrote:
On 19/11/2013 12:42, wrote:

On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:

Can anyone advise the best course of action to get rid of mould growth



beneath a bay window?



Not sure whether it's caused by penetration (outside of the house is



rendered), or whether condensation is the culprit (although there's no



conspicuous sign of condensation elsewhere.







Can be seen he http://allegoric.us/1b5hDWP



It could be condensation. Under a bay window it's not uncommon to find an extra thin wall, single brick even, especially in lower spec period houses.



There appears to be more at the lower levels, any chance it could be

rising damp? Just a thought.

9 feet high and rising...?

Jim K
Fair comment. Looking at the condensation on the bottom of the
aluminium frame it does appear to be dripping off it and also the wood
appears to be marked by water stains...could this be the source? Maybe
running on to the sill then dripping off the sill and onto the wall.

On Tuesday, November 19, 2013 7:26:17 PM UTC, ss wrote:
On 19/11/2013 12:42, wrote:

On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:

Can anyone advise the best course of action to get rid of mould growth



beneath a bay window?



Not sure whether it's caused by penetration (outside of the house is



rendered), or whether condensation is the culprit (although there's no



conspicuous sign of condensation elsewhere.







Can be seen he http://allegoric.us/1b5hDWP



It could be condensation. Under a bay window it's not uncommon to find an extra thin wall, single brick even, especially in lower spec period houses.



There appears to be more at the lower levels, any chance it could be

rising damp? Just a thought.

Its a first floor window with a window below it. RD rarely goes above 1.5 m and normally below 1m
This is condensation where there is a cold bridge and the mould pattern is a classic condensation one

On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:
Can anyone advise the best course of action to get rid of mould growth

beneath a bay window?

Not sure whether it's caused by penetration (outside of the house is

rendered), or whether condensation is the culprit (although there's no

conspicuous sign of condensation elsewhere.



Can be seen he http://allegoric.us/1b5hDWP

yes in addition to those who correctly say use bleach etc
you can do any of the following
a) get rid of the plaster and put in PU foam backed plaster board from floor to window (best job) fixing with mechanical fixings (2" plastic washers with SS nails as per external insulation fixings plus plasterboard adhesive)
b) put on 3 mm or similar wallpaper polysyrene (Yuk!) but it will work a bit
c) anti condensation paint
d) heat up the wall with a skirting rad

On Wed, 20 Nov 2013 02:36:49 -0800 (PST), wrote:

On Tuesday, November 19, 2013 11:19:41 AM UTC, Apellation Controlee wrote:
Can anyone advise the best course of action to get rid of mould growth

beneath a bay window?

Not sure whether it's caused by penetration (outside of the house is

rendered), or whether condensation is the culprit (although there's no

conspicuous sign of condensation elsewhere.



Can be seen he http://allegoric.us/1b5hDWP

yes in addition to those who correctly say use bleach etc
you can do any of the following
a) get rid of the plaster and put in PU foam backed plaster board from floor to window (best job) fixing with mechanical fixings (2" plastic washers with SS nails as per external insulation fixings plus plasterboard adhesive)
b) put on 3 mm or similar wallpaper polysyrene (Yuk!) but it will work a bit
c) anti condensation paint
d) heat up the wall with a skirting rad

Thanks to all for the excellent responses. :-)