Needing to paint a 2 bed semi house . Gable end wall gets a lot of weather, so needing something to help with that. Being done by a painter , but us to supply materials. What would you recommend please
Assuming the area to paint is a previously painted cement based render, that is clean, dry, sound and prepared as detailed in the technical data sheet you could consider Rust-Oleum Mathys Murfill Waterproofing Coating.
This can be mixed to many RAL, NCS or BS colours in a matt finish.