One yEar into our new build and we have staining on the render - due to what I suspect is poor flashing. The flat roof angles towards the wall instead of away - the builder is saying there is nothing wrong with the flashing but the render is always patchy even in dry weather. - Your thoughts would be appreciated as we have reached a deadlock with the builder. 

Edited December 4, 20214 yr by DeeCeeaitch
SPELLING

That looks like damp to me, render experts will be along shortly.

Poor detailing means water is soaking the render.  Nothing at the top of the render to stop it and there is nowhere for the water from the roof to go.

57 minutes ago, joe90 said:

That looks like damp to me, render experts will be along shortly.

Plus 1

Plus another 1

in the absence of any gutters where are you expecting the water to go ? Waterfall off front of window or dribbling down the render ?

 

First job is to get water away from the structure as you don't want permanently soaked walls/render. 

 

Pointless worrying about any staining/damp until you have that sorted.

Edited December 7, 20214 yr by Dave Jones

Flat roof needs to slope away from the wall!

I would tip the lead up, undo the fixings, lift off the roof panel, add thin ply sheet on firing pieces to give a 1:40 fall away from the house , then replace panel. Likely have to trim the upstand 

 

 

4 hours ago, tonyshouse said:

I would tip the lead up, undo the fixings, lift off the roof panel, add thin ply sheet on firing pieces to give a 1:40 fall away from the house , then replace panel. Likely have to trim the upstand 

 

 

 

so the rain would dribble down the front of the window.

 

Better option would be to do it properly and fit a gutter and downpipe.

I think that it would drip clear of the sill