My façade was old & cracking. Chunks looked like they were close to falling. I removed all the loose bits and re-rendered with new concrete. I did the proper bonding steps with polyvinylacetate (#PVA). That previously cracked part of the #façade seems relatively strong and water resistent now (i.e. the color remains light...
When it rains sometimes it drips water along the top interior window frame. One one occasion water collected behind the interior wall paint and formed a water balloon. I took a guess at how the water was entering and corrected it. But even after that I still have water dripping from the top window frame.
I like the lime idea. Lime comes in many forms (e.g. quicklime, hydraulic lime). I’m not sure I’d be keen to work with the stuff that needs a complex number of steps with a mixer that can withstand heat. Suppose I buy “white lime” (which is marketed as a whitewash for trees as an anti-pest control, and for cosmetic changes on brick walls). Will that do the job? I think I simply mix it with water. How do I bond it? With PVA?
(edit) Since I guess you speak French, perhaps you can tell me if this stuff is right for the job:
^ I have some of that stuff already on-hand but it was opened ~14 months ago, so it might be oxidized into chalk. I’m not sure how to test to see if it’s still usable.
It appears the #Cantillana varieties of lime render are simply rendered on with no bonding steps or additives.
Façade absorbs water in some areas. Is paint a decent solution? (update: no it is not)
My façade was old & cracking. Chunks looked like they were close to falling. I removed all the loose bits and re-rendered with new concrete. I did the proper bonding steps with polyvinylacetate (#PVA). That previously cracked part of the #façade seems relatively strong and water resistent now (i.e. the color remains light...