How to disguise this cracked render?

[WabbitPoo]

I have been asked if I can help tidy up a bodged crack repair to someone's rendered house.

Untitled

• WabbitPoo
• 21 Mar 2014
• 1

The crack itself I can scrape out and fill as required - but the render has a horrid ridged pattern, presumably made by swirling the cement render at the time.

Any tips on how to get a good finish? Is more cement render the way forward, or a bucketload of ext. filler...?

I was thinking of scraping off that smeared cement knobbliness and then two or three good coats of paint (am painting the whole wall anyway).

Help!

 

[ree]

No matter what you do that crack will re-appear after a time.

Given the horizontal length of the crack, and then its angle to the window opening, its obviously the masonry background thats at fault.

If it was a cavity wall i'd say its swelling/rusted cavity ties.

Plus that swirling business seems to be a cement heavy mix - that alone will condemn the render to failure: it cant expand and shrink. Unless they've used some kind of finish thats new to me, which is quite possible.

 

[WabbitPoo]

They just want it to look nicer while they try to sell the place. I told them it'd always be visible though..........