Painting an exterior one coat rendered front of house.

[aspley]

Hi Guys, I’m being asked to apply a coat (or two) of an exterior paint to the front of a house where new windows are being fitted.
The existing finish is a one coat render finish (Webber Pral) has not been previously painted.
Best recommendation on which is best masonry paint to use and any issues to look out for.

Thanks

 

[Wayners]

Is that silicone render?

 

[Koolpc]

https://www.uk.weber/weberpral-m#tab-about_this_product

 

[aspley]

Thanks both, the render was applied 20 years ago, unfortunately I have no idea which monocouche was used.

 

[Wayners]

I'd phone the technical helpline or read the data sheet online.
I've had a quick look and can't see anything about painting but I know there are specific paints for silicone which can be used over most renders including cement