K rend problem

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Nickthebuilder

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Hi can anybody help , I am a builder and about 15 mths ago we built an extension ,with k rend Finnish ,it went on concrete block,base coat mesh then top coat
The problems we have are ,
1 still very patchy ,
2 when it rains the rain is driving against the render which is running down the wall
Then his the patio glass. And onto the sill,
My problem is whatever s in the rend its stained the glass and discoloured the alluminum sill !
We can't clean the glass it just won't come off
The grey sill has discoloured so Badley we will have to renew it or re spray if poss
It's as though there s acid forming , when rain hits it
There are 2 sets of doors on same elevation ,the other one is ok ?
Any suggestion ,nick
 
Hi can anybody help , I am a builder and about 15 mths ago we built an extension ,with k rend Finnish ,it went on concrete block,base coat mesh then top coat
The problems we have are ,
1 still very patchy ,
2 when it rains the rain is driving against the render which is running down the wall
Then his the patio glass. And onto the sill,
My problem is whatever s in the rend its stained the glass and discoloured the alluminum sill !
We can't clean the glass it just won't come off
The grey sill has discoloured so Badley we will have to renew it or re spray if poss
It's as though there s acid forming , when rain hits it
There are 2 sets of doors on same elevation ,the other one is ok ?
Any suggestion ,nick
have you any pictures of this bud.
 
Could driving rain be running lime out of it and staining sills and windows? I've never seen it personally but as it's porous it's maybe a possibility?
 
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