Water from behind Mastic

[Tripster]

Hard to explain but had Mastic replaced around windows by site last summer (new build). Noticed today water dripping from behind and white residue on frame. Wondered where the water would be collecting and how it’s behind the render. Any ideas ?

 

[Slick]

Hard to tell by the pictures but are you sure it's not supposed to be like that?

 

[Slick]

If it is behind the render you would here it if you tapped it.

 

[Tripster]

If it is behind the render you would here it if you tapped it.

If I push the mastic gently, more holes open and water poles out then stops.
Tapping the render does nothing

 

[TissoT]

The frame has weep holes in they should show on the out side of the frame or they are underneath

Water builds up inside the frame so they water needs to come out its normal.


View: https://www.youtube.com/watch?v=KZvPXNfafTM

 

[Slick]

If I push the mastic gently, more holes open and water poles out then stops.
Tapping the render does nothing

If the render is solid then there is no water behind it.

 

[Tripster]

The frame has weep holes in they should show on the out side of the frame or they are underneath

Water builds up inside the frame so they water needs to come out its normal.


View: https://www.youtube.com/watch?v=KZvPXNfafTM

Yep I see this on the rear door but the water is not in the frame it’s from holes in the mastic around edges and dripping out from top above window where it seals to render. Render is crumbly in places and when I pushed the mastic in one point it had a gap to render and water poured out. It’s the front room window and above the frame

 

[Tripster]

If the render is solid then there is no water behind it.

Will go check all around above window. Thank you for the tip Hope it’s all solid

 

[TissoT]

Yep I see this on the rear door but the water is not in the frame it’s from holes in the mastic around edges and dripping out from top above window where it seals to render. Render is crumbly in places and when I pushed the mastic in one point it had a gap to render and water poured out. It’s the front room window and above the frame

I would need to see a picture of the above window.

Is there a sill (External) on the window above ?

The water could be collecting in the frame above a passing through.

 

[Tripster]

If the render is solid then there is no water behind it.

Render solid, just mastic not sealed to render and holes all over. Water running from behind

 

[Tripster]

I would need to see a picture of the above window.

Is there a sill (External) on the window above ?

The water could be collecting in the frame above a passing through.

 

[TissoT]

Is there a window on the first floor above the down stairs window.

 

[Tripster]

Is there a window on the first floor above the down stairs window.

Yes, a bedroom window directly above like below

 

[TissoT]

I would be inclined to be looking at the window above the water is passing through from above.

The K rend rendering looks fresh so it not passing through there

They look like a timber frame building.

 

[Tripster]

I would be inclined to be looking at the window above the water is passing through from above.

The K rend rendering looks fresh so it not passing through there

They look like a timber frame building.

Yes timber frame building. Will check upstairs window. Thank you for help, appreciated it