Window mould

[Arthurss]

Hi, we recently bought house and previous owner installed new windows in two rooms.

After couple of months we started to notice that all corners are completely wet and there are no window boxes, seals etc. He said he was going to do frame so there are some metal beads. Any recommendations what could we do to fix this?

 

 

[Russell griffiths]

The last thing I would do is use that steel framing. 
i would strip the plaster from the reveal and add a strip of pir insulation with the plasterboard bonded onto it. 
glue it to the brick work to insulate those reveals, then re plaster. 
 

many ways to do it, but you need to isolate the cold outside from the warm inside 

metal will transfer the cold through which is what you want to avoid. 

[Mike]

1 hour ago, Russell griffiths said:

The last thing I would do is use that steel framing. 
many ways to do it, but you need to isolate the cold outside from the warm inside 

metal will transfer the cold through which is what you want to avoid. 

This.

[MikeGrahamT21]

Are you sure that’s just condensation? What material is the painted bit to the left of the window made of? And what’s on the outside?

 

Looks a bit like water ingress as well as condensation to my untrained eye

[Arthurss]

13 hours ago, MikeGrahamT21 said:

Are you sure that’s just condensation? What material is the painted bit to the left of the window made of? And what’s on the outside?

 

Looks a bit like water ingress as well as condensation to my untrained eye

Thats single brick and plaster with some filler. There is literally nothing else. Other windows are lined with internal bricks

[Arthurss]

15 hours ago, Russell griffiths said:

The last thing I would do is use that steel framing. 
i would strip the plaster from the reveal and add a strip of pir insulation with the plasterboard bonded onto it. 
glue it to the brick work to insulate those reveals, then re plaster. 
 

many ways to do it, but you need to isolate the cold outside from the warm inside 

metal will transfer the cold through which is what you want to avoid. 

Thank you. I will have to take it off then. He done one frame only.

[MikeGrahamT21]

2 hours ago, Arthurss said:

Thats single brick and plaster with some filler. There is literally nothing else. Other windows are lined with internal bricks

 

Yeah thats your issue, i'd say its definitely a mixture of both ingress and condensation. Externally, make sure that any pointing is good, no gaps in it, and you could apply a water repellant to the masonry to help further. Inside you are going to need to create an insulation filled cavity, and then an internal wall, with the metal frame. 

If it were me i'd do the following:

 

Remove the red, keep the green.

 

In between the metal frame kept, and the wall, fill with insulation, PIR will likely be the best choice here, and use some adhesive expanding foam to 'glue' it to the reveal. Then go over with your plasterboard. I would considering using metal frame wider than that too, if possible, or add some timber spacer to it, so your insulation and PB overlap the window.

 

And ensure that the outside is fully sound, and water repellant applied. Make sure to treat any internal mould with either proprietry mould killer, or white vinegar before covering it up too.

 

See what others think of this plan?

[Iceverge]

Any pics of the outside? 

 

Don't drop your phone!!!!!

[Marvin]

I would chip off the angle bead, fit insulation board and plasterboard the hole and replaster (a few fixings through the plasterboard and celotex)