Tyrolene Problem / Advice

[gurdalevran]

I have recently done an exterior rendering job using Tryolene on a cottage. I have done the job before, however this time the render has gone all patchy and in some areas the render looks like it has not dried out - even though it is more than 8 weeks since the job was completed? We used Ivory Tryolene to match the clients previous house colour. Any advice or steer as to why this may have happened would be very helpful?

 

[warriorupnorth]

It's not a good pic to be honest to draw any real conclusions, but some of the main probs associated with patchy Tyrolean are bad site management (water running down elevations and soaking the substrate ie, no temp falls etc) inconsistent background render mix, over application of Tyrolean in places, lime bloom etc etc, and to be honest 8 weeks drying out is probs not enough considering the weather conditions prior to our little hot spell, especially if the substrate was wet through

 

[bubbles65]

Echo the above - especially looking at the closeness of them trees, blocking the sun.

 

[henry]

was it bricks or blocks and was they dry when you started. Sometimes with old bricks they hold a lot of moisture in them and when renderd you seal this in hence damp spots.

 

[Rigsby]

Sounds like lime bloom. Weber tyrolean shows it up. When you use tyrolean the substrate needs to be dry. The render top coat will need to be of high suction and even thickness throughout. Did it rain soon afterwards? This has an effect on the colour. Yellows are the worst for showing it up.

 

[kebab king]

A few years ago i had a white one go like that.I had a Webber rep out and he said it was Lime bloom, a natural product so nothing could be done about it.I ended up painting it out of mt own pocket.The last job i did i used Webber Pral m through a flicker gun, it came out real good, that was on advice from Simply.