I know this is an old post but just want to share my experience for those considering Jotashield. Late last year (around December), I repainted my house with Jotashield Colour Extreme. Over 13 years ago I had used Jotun Jotashield as well and was satisfied with it.

Thinking that Colour Extreme was an upgrade since it came with 12 years warranty, I was silly enough to spend extra money to buy and use it.

Two months later my exterior walls of my house was covered with water streaking marks. Complained to Jotun and they had the cheek to tell me to use soap and clean the walls. WTF.

After several complaints and follow-ups, they finally agreed to replace the paint with Jotashield Anti-Fade, which supposedly comes with anti-watermark technology (which surprisingly the more expensive Colour Extreme did not have). So now, I have to pay someone to repaint my house again and hope that the water marks don't come back.

In my opinion, Jotun shouldn't have put Colour Extreme in the market as it is so prone to water marks. As Malaysia is a temperate country with a lot of rainfall, the black water marks can appear very quickly, and looks very obvious especially if you are using a light coloured paint. 

I hope Anti-Fade is better. Will update this thread 6 months down the road. I don't know why Jotun changed their Jotashield paint formula. The Jotashield I used 13 years ago had zero issues.