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Brick wall cleaning

Hello. Currently I am engaged in the construction of an extension to the house. The house was bought very old (19th century). It is necessary to ennoble the pediment. The pediment is lined with brick and whitewashed countless times with lime (probably?) Whitewash. You can, of course, apply a bonding layer of deep-penetrating soil with pulverizer, followed by painting. But I want to wash to a "native" brick - the brick is interesting, with stigmas .... The problem is that access to it is only from the roof of the existing extension. The house, as I said, is old - ceilings 4.20. I have my own Karcher, but so far I can’t get a quick try - I need to get water there (but for now there are not enough hoses), and I need to build some scaffolds. And the decision must be taken now - the choice of the rest style of decoration depends on it ....
.... Here, in fact, is the question: does anyone have such an experience? Will Karcher wash away such a wall? How "hemorrhoid" is it? After all, you will need to work on the forests, or on a 5-meter staircase ....
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6 comments
Author
In short, as the respected Delausam used to say, in addition to theory, there is also practice! ))))
"Rake" lay where he did not wait - Karcher (household. 145bar) easily breaks the whitewash, only now .... In defiance of all the conversations on the topic: they used to lay on a strong solution, but now there is only sand, "in practice it’s on the contrary it looks: they used to lay lime, without cement! ... Accordingly, Karcher, along with whitewash, gnaws a seam 3-4 cm !!! And even breaks off the edges of the brick!
.... I thought ... Well, what the hell! Passed at less pressure, so that the seams would not be pulled out, beat everything that flew off, then washed with chemistry.Tomorrow I will grunt from the spray gun, I will paint and that's it ....
Author
In real time, I am loading a retractable ladder, a Karcher and 30 m of hose into the car. I'll try to go .... If only the rain did not start ....
It is necessary to rummage on the sites for restoration, maybe there they will tell you what you can clean up.
Author
I have a sandblast ... The Bulgarian also has a dime a dozen ...)))) ...... Only now ... Imagine an isosceles triangle with exactly 10 (!) Meters side. It is located vertically and its base is at a height of five meters! (Accordingly, to the top - also 10).
.... Here it also needs to be cleaned!
... You can take Kamaz sand and a few dozen nozzles for sandblasting .... Or a few grinders .... And a couple of weeks time + forests ....
sandblasting would be) And in general, a Bulgarian plus a grinding wheel and a brick will be better than new.
Author
Yes ... I’ll supplement the question. How can you refine the brickwork on the street? On sale there are many different varnishes for mineral surfaces, but they cost a little not humanely)))))). And the width of the pediment is 10 meters (45 degrees), so treating such an area with varnish will fly into a pretty penny.
.... Maybe someone tried to use for this purpose any primers diluted, or home-made solutions?

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