New build, water in corners of bay windows

[freddiemercurystwin]

If it is condensation causing the damp walls then maybe it is trickling down the upvc and is being absorbed by the wall. Note earlier in the thread I said the ventilation should be addressed in order top eliminate it as an issue. Once you leave the windows ajar if there is no improvement then there will be something else causing the problem. But the lack of trickle vents issue does need addressing.

 

[freddiemercurystwin]

Noise may also be an issue with vents. You could try a dehumidifier or look at some kind of alternative more complex ventilation. I just saw an estate thrown up next to the m1 and doubt that ventilation has even been considered, just noise!

The point is the house should have adequate ventilation be it natural, passive or mechanical. And this OP appears to have none.

 

[orchard222]

Last i heard ALL new builds require trickle vents under building regs.....?

 

[freddiemercurystwin]

As mentioned there are other ways to achieve adequate ventilation but trickle vents is by far the most common/easiest.

 

[rjm2k]

Last i heard ALL new builds require trickle vents under building regs.....?

I have a feeling that part closing handles count .

 

[freddiemercurystwin]

No night locks do not count.

 

[Gazman16]

As freddymercurystwin says night latch's defiantly don't count as proper ventilation and if not trickle vents there should defiantly be some other form of ventilation. You could always ask your local building control about this if the builder is unwilling to help as it is a regulation.

Although I can see a little bit of condensation on the glass the wet patches at the plaster corners like that more often points incorrect/missing sealant between the window frame and the PVC cill that it sits on. Unfortunately the only way to tell it to take a window out.

 

[s60tsy]

Could it be the the ends of the cill isnt sealed to the frame, if the cill falls back to the house slightly then drained water could be sent to those areas (or some of it)

 

[DHFrames]

This is a common issue where sealant hasn't been applied along the seal before the window sits on top. See the picture attached, the rain drives in hits the lip at the back of the seal and makes it way to the ends penetrating through, a bead of silicone stops this from happening. A 3 second task that often fitters don't do, they don't know about or the sealant gets smudge when the window goes in causing gaps! Either try to pump sealant into the corners or deglaze take screws out and move bottom of frame out slightly to get some in from the inside.
Depending on your building control the windows won't get passed without trickle vents!!

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• DHFrames
• 30 Oct 2013
• 4