Hi I'm looking for advice on some wet patches underneath the front window sill. I had the k rend installed six months ago during the summer months and it dried out leaving no marks. Since we have had rain these marks have appeared and hasn't gone away during dry spells any advice would be helpful. Thank you
New k rend
- Thread starter Zeotec
- Start date
Monkey Boy
Well-Known Member
Cut drip groove in cill?
As the monkey says, but also worth checking is the window, which is a problem encountered before.
Your damp spots look like they might be coming through, (hard to say with 1 image 1 time) as well as possibly cascading water down the front.
Them window casements need to let water drain out (the front), 3 or 4 times I've seen them fully siliconed in and water channelling out to where it shouldn't be. check that aswell.
Monkey Boy
Well-Known Member
initially I thought diesel exhaust splatter but is very high
Dollar
Well-Known Member
Water has got behind render you have bleed of sorts from brickwork bed joints ...
So in your opinion is this a fault with the render company
There is no cars that go anywhere near the windows
No cars park anywhere near here. The windows were installed weeks before the render and seem to drain fine from the front into the stone sill. It seems strange that it looks in the shape of a brick and only occurs under this window and nowhere else right round the side and back if the property
It's probably running down under the cill and getting behind
Monkey Boy
Well-Known Member
Try diy remedies then if not Hack it off and see what’s going on
It’s only a small patch to re do
It’s only a small patch to re do
Thanks for your help would you recommend running a sealant under the window sill
Monkey Boy
Well-Known Member
No would rather create a drip stop somehow
Grind one in which will be a mess or attach something to it
Better off putting a neat bead of charcoal coloured silicone under the cill to prevent water getting back to the wall that way you can see if it shows up that to be the underlying cause and it will not catch your eye if done neat.
Still would not think that to be a satisfying solution just a temporary test.
Has the cill got a drip groove?
Those cills were designed comfortably for brickwork and not planned for render to be added to wall thickness negating the drip groove. Look how the render sticks out around the lintel - house was well thought out when built and not designed to be rendered.
If the drip groove is working satisfactorily then ignore everything I said
and anuver fing,… is it to do with that co ax cable nailed in under cill carrying water along BT SKY engineers plant cables and run with no regard to property.
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Elite exteriors
Well-Known Member
It's either dripping off the sill or getting in behind somewhere It's not the renderers fault
Thank you appreciate your help