Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Dave Willis on March 31, 2016, 06:22:02 pm

Title: Dirty Render
Post by: Dave Willis on March 31, 2016, 06:22:02 pm
Commercial job I've got is blocks of flats with render stains. I haven't been asked to clean the marks off but as I'm a perfectionist I probably will tidy it up. I'm thinking of giving the brush a squirt of mould killer and brushing it over. What do you reckon?
Title: Re: Dirty Render
Post by: Positivity on March 31, 2016, 07:15:50 pm
If you haven't been asked to clean the marks off why even bother?
Title: Re: Dirty Render
Post by: Smurf on March 31, 2016, 07:25:48 pm
ditto
Title: Re: Dirty Render
Post by: the king on March 31, 2016, 08:44:46 pm
spray some hypo on it
Title: Re: Dirty Render
Post by: 8weekly on March 31, 2016, 08:47:01 pm
Commercial job I've got is blocks of flats with render stains. I haven't been asked to clean the marks off but as I'm a perfectionist I probably will tidy it up. I'm thinking of giving the brush a squirt of mould killer and brushing it over. What do you reckon?
See a psychiatrist.
Title: Re: Dirty Render
Post by: Dave Willis on March 31, 2016, 08:49:42 pm
That's the way I am - can't bear to look at that every time I clean the window. It's a mess.
Title: Re: Dirty Render
Post by: Smurf on March 31, 2016, 09:00:48 pm
Why not mention them and if they ask put in a price to clean them all then instead of wanting to do it for free  ???
How many are you talking about that need cleaning and at what height as you say they are blocks of flats?
Title: Re: Dirty Render
Post by: NWH on March 31, 2016, 10:38:17 pm
Gardiners do a nozzle for this Dave look on there site there's a video of a bloke using his Waterfed pole to jet down brickwork.
Title: Re: Dirty Render
Post by: Smurf on March 31, 2016, 11:25:48 pm
You don't really want to use high pressure on soft sandstone as can damaged the substrate very easaly.
 it seems the norm now for the big boys to use low pressure and superheated water/steam.

https://www.youtube.com/watch?v=OS1_vPxeZBQ

They also use that method for cleaning K Rend too
Title: Re: Dirty Render
Post by: Smurf on March 31, 2016, 11:43:55 pm
As said before for those render window surounds just brush some yehaa on it, let dwell, then rinse it off.
Title: Re: Dirty Render
Post by: kempy on April 01, 2016, 07:23:58 am
Dampen it down
Spray Hypo , leave it 5 to 10 mins and then wash off

Simple ..

I did it similiar to this on a large property , fairly size stains on render and it looks very clean now .
It's been 12 months and hasn't come back .
Title: Re: Dirty Render
Post by: the king on April 01, 2016, 07:33:37 am
i have a guy on my wc south west fb page who uses hypo he has loads of vids and pic of it and the resalts  im very inpressed with hypo im guna get some this week and do my garden
Title: Re: Dirty Render
Post by: Smurf on April 01, 2016, 09:48:44 am
Funny enough I treated the rear wall of a park home yesterday that the render had gone green mostly at the bottom of the wall.
Took less than 15 mins from start to finish and I charged £55. Customer was very please with the results too.

When dealing with any chem it's best you know what you are doing and more importanly you are insured properly should something go wrong.

Your public liability cover should also include in this list of activities you are insured to do.
•Damage to Property Being Worked Upon
•Treatment Risks (for damage caused by cleaning solutions or chemicals)

If not you are leaving yourself wide open should something go wrong
Title: Re: Dirty Render
Post by: Dave Willis on April 01, 2016, 03:29:58 pm
Were do you get this Hypo from? Aren't there two different Hypos?
I only want a squirt on the brush now and again don't want to treat the whole side of a house.
Is it just bleach?
Title: Re: Dirty Render
Post by: the king on April 01, 2016, 08:28:22 pm
mole vally farmers sell it u need the red label one mix it 75 percent hipo rest water use a sprayer and brush in leve for 20 minits then rince off with water
Title: Re: Dirty Render
Post by: Smurf on April 01, 2016, 08:53:25 pm
mole vally farmers sell it u need the red label one mix it 75 percent hipo rest water use a sprayer and brush in leve for 20 minits then rince off with water

So you buy 10% YEHAA! then and use it almost neat  ???
Title: Re: Dirty Render
Post by: colin bird on April 02, 2016, 04:08:39 am
Were do you get this Hypo from? Aren't there two different Hypos?
I only want a squirt on the brush now and again don't want to treat the whole side of a house.
Is it just bleach?

Hi Dave  I recently purchased 20litres of 15%  hypo of eBay for about £25 inc delivery,just put in the search bar sodium hypochlorite, I used it to clean my Indian sand stone patio,worked  a treat,but be careful of over spray as its kills any plant life,and stains your clothes
Title: Re: Dirty Render
Post by: Dave Willis on April 02, 2016, 07:05:16 am
Cheers lads.. we  have a Mole Valley just down the road. I'll pop in there.
Title: Re: Dirty Render
Post by: the king on April 02, 2016, 04:03:18 pm
mole vally farmers sell it u need the red label one mix it 75 percent hipo rest water use a sprayer and brush in leve for 20 minits then rince off with water

So you buy 10% YEHAA! then and use it almost neat  ???
  yes  add mix to a back pack and brush it on with wfp pole soft brush as long as u were a mask and gloves safty goggols so u dont get it on ur skin ur ok 
Title: Re: Dirty Render
Post by: kempy on April 02, 2016, 10:09:31 pm
The 14% hypo is the one you want
Title: Re: Dirty Render
Post by: Tadgh O Shea on April 02, 2016, 11:31:28 pm
When using 14% hypo its worth contacting nasa beforehand  to borrow one of their astronaut suits, and if you are going to be spraying it in the air its also worth having plenty of plastic sheeting and loads of masking tape at hand just in case you don't like hearing from solicitors. ::)roll
Title: Re: Dirty Render
Post by: Smurf on April 03, 2016, 12:00:06 am
When using 14% hypo its worth contacting nasa beforehand  to borrow one of their astronaut suits, and if you are going to be spraying it in the air its also worth having plenty of plastic sheeting and loads of masking tape at hand just in case you don't like hearing from solicitors. ::)roll

Indeed...That is why most only use 1% yehaa on render now
Title: Re: Dirty Render
Post by: Tadgh O Shea on April 03, 2016, 12:14:25 am
When using 14% hypo its worth contacting nasa beforehand  to borrow one of their astronaut suits, and if you are going to be spraying it in the air its also worth having plenty of plastic sheeting and loads of masking tape at hand just in case you don't like hearing from solicitors. ::)roll

Indeed...That is why most only use 1% yehaa on render now
  Indeed Smurf, good to see more and more guys are realizing just how hazardous sodium hypochlorite really is and the detrimental damage that it can cause to so many different types of surfaces, especially when its being used at high strength.
Title: Re: Dirty Render
Post by: Dave Willis on April 03, 2016, 07:38:15 am
I always dress like that anyway.