Spotty Render

[CrackOn]

Hi All

Once you've all picked yourselves off the floor at the arrival of the good weather, perhaps you let me have your thoughts on the images below.

I've just had a 15mm application of Monorex through colour render over new block work and old brick.

The application has taken place within the last 4 weeks, so is still relatively fresh. The finish looks 1st class, however whenever the render gets wet in the rain and subsequently dries off the pattern of the brickwork appears. This does not happen where the render has been applied over the new block work.

The pattern is very pronounced and last for a couple of days after the render has dried out.

Do we have a problem here, or can I expect this to disappear with time?

Thoughts please.

Thanks.

Untitled

• CrackOn
• 7 May 2008
• 1

Untitled

• CrackOn
• 7 May 2008
• 1

Untitled

• CrackOn
• 7 May 2008
• 1

 

[^woody^]

Its pattern staining due to differential moisture absorption of the wall bricks or condensation.

I'm not familiar with this particular system, but with normal renders it occurs due to insufficient thickness of the render. Again with traditional render it may disappear when painted, bit yours seems to be already coloured?