Can you jetwash soft Edwardian brick?
Discussion
it takes years to mellow so if its not something disgusting I should leave well alone.If it is to get moss off Suffolk reds (soft as s
te) i have used a blow torch to dry out the moss and then a few hours later(it was in the summer) when it was all dried off a dust pan brush. If you can see red sand coming off in anything other than the odd speck you are brushing too hard.
A jet wash will see you through a course of these in 30 seconds flat, don't even think about it!!!
te) i have used a blow torch to dry out the moss and then a few hours later(it was in the summer) when it was all dried off a dust pan brush. If you can see red sand coming off in anything other than the odd speck you are brushing too hard.A jet wash will see you through a course of these in 30 seconds flat, don't even think about it!!!
Better to get the opinion of someone who knows what they are talking about but I would still say that the best option is to ‘burn’ them off (just don’t burn the brick!) and then lightly brush off the excess. It sounds as though you are looking at re-pointing the wall anyway though if the Ivy is big enough to leave anything serious on there.
sday12 said:
Thanks guys, I thought I was being at tw@t, the problem is when we moved in we had a 30 year old vine crawling up the house, once removed the ivy tenticles have stuck on the brick:
As posted - don't do it! I've just removed 10 years of wisteria today from a tile hung house and have the same problem. I think we're just going to have to live with it or gradually remove it by hand.
HundredthIdiot said:
It depends on the pressure.
My petrol-engined power washer will destroy certain types of concrete (fence posts, for instance). In hindsight this purchase might have been overkill, but I can't resist household appliances with horsepower ratings.
My petrol-engined power washer will destroy certain types of concrete (fence posts, for instance). In hindsight this purchase might have been overkill, but I can't resist household appliances with horsepower ratings.
You are
Edited by rhinochopig on Tuesday 28th October 17:55
HundredthIdiot said:
It depends on the pressure.
My petrol-engined power washer will destroy certain types of concrete (fence posts, for instance). In hindsight this purchase might have been overkill, but I can't resist household appliances with horsepower ratings.
And the pressure depends on the tip and the distance.My petrol-engined power washer will destroy certain types of concrete (fence posts, for instance). In hindsight this purchase might have been overkill, but I can't resist household appliances with horsepower ratings.
Inverse sqaure law with regard to distance.
Hydrofloric acid is the weapon of choice for brick.
If in doubt, an insured proffessional.
NDA said:
sday12 said:
Thanks guys, I thought I was being at tw@t, the problem is when we moved in we had a 30 year old vine crawling up the house, once removed the ivy tenticles have stuck on the brick:
As posted - don't do it! I've just removed 10 years of wisteria today from a tile hung house and have the same problem. I think we're just going to have to live with it or gradually remove it by hand.
Thought I'd add a little pressure washing 101.
With the exception of concrete pressure alone will not do the job.
Apply soap from the bottom up, pressure wash from the top down with hot water.
Use a soap that free rinses even if it has dried.
Hot water is far superior, would you wash dirty clothes on cold !
Acid, I would not reccomend using acid, but the process is the same apply from bottom up etc. Except that acid should not be allowed to dry, esp on aluminium.
If you do wheels, take them off the car or you will get stains from the steel wheel studs (unless you are very adept.)
Grease removal, initiallly use cold as this will "move" the grease, hot just smears it and spreads it out. Finish with a degreaser and hot.
The pressure of the machine makes little difference, it just takes longer.
And ivy tendrils will not be removed by pressure alone, well not before the brick is history
With the exception of concrete pressure alone will not do the job.
Apply soap from the bottom up, pressure wash from the top down with hot water.
Use a soap that free rinses even if it has dried.
Hot water is far superior, would you wash dirty clothes on cold !
Acid, I would not reccomend using acid, but the process is the same apply from bottom up etc. Except that acid should not be allowed to dry, esp on aluminium.
If you do wheels, take them off the car or you will get stains from the steel wheel studs (unless you are very adept.)
Grease removal, initiallly use cold as this will "move" the grease, hot just smears it and spreads it out. Finish with a degreaser and hot.
The pressure of the machine makes little difference, it just takes longer.
And ivy tendrils will not be removed by pressure alone, well not before the brick is history
I hear what you say about the wisteria - I'm not a vandal. Honest!
However it's done enormous damage, the house is tile hung and the tiles are (obviously) vertical, the wisteria has forced its way under the tiles and has broken a large number of them, perhaps 15% of the total. Another 30% of these tiles are in positions they shouldn't be because of the wisteria and can't be moved in case they break - the tiles are 200 years old.....
So it's either keep the wisteria growing through the roof and all through the attic knocking out tiles as it goes, or chop it. So I've reduced it to first floor window level and removed it from the tile hanging. It's the house or the plant.
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