Advice with roof clean...

Discussion in 'Pressure Washing' started by Bernard, May 25, 2016.

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  1. Bernard

    Bernard Member
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    This is my first roof clean (apart from my own) and these are different tiles.

    Roof Gail.jpg

    Will hypo be OK with this roof? Should I just be looking to spray on hypo and hose off?

    Would a 40 degree nozzle on low power be safe to test on this roof? Or using the pressure washer a no-no?

    All and any advice welcome.
     
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  2. Robster

    Robster Member
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    My opinion....... SH would be fine on that roof, say a 2 - 3 percent solution and a little bit of your usual detergent, spray it on let it dwell for a while 10 - 15 mins then rinse off. Watch the plants, you should spray all the plants adjacent to the building with plenty fresh water before starting your roof clean and give them a good soaking again when your finished. A 40 degree nozzle will be fine , but you should really get yourself a a soap nozzle for these jobs, overspray and drifting can be a problem with a 40 degree nozzle if theres any kind of wind about. Good Luck and let us know how you get on.
     
  3. Bernard

    Bernard Member
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    My usual detergent is UBIK 2000. Can you mix hypo with a little bit of UBIK and spray that on?

    A soap nozzle attachment that pumps the detergent through your wand? I have one of those but haven't used it yet. So far I've always just used my IK9 sprayer for putting anything extra on jobs.

    I'll post some pictures when I'm finished.
     
  4. Robster

    Robster Member
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    SH mix with UBIK .... i dont know, probably be ok but i would do some research first.
    A soap nozzle is an oversized nozzle if you like, it fits to the end of your wand like any other nozzle but dramatically decreases the pressure of the water coming out of the lance but importantly maintains the lpm of your machine. You would normally work this system using a downstream injector or an x-jet, you need the low pressure to make these items work.

    How do you intend covering the whole roof with your chems using the IK9 ? ....... you will have to get on the roof im guessing? You should research softwashing, you will do that job 10 times quicker and much more safely.
     
  5. Bernard

    Bernard Member
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    I have a black nozzle for the wand but it's not over-sized. I use that for wash-downs ect that just gives the wand the pressure of a normal garden hose. I'd assumed that was the nozzle I'd use if I was to attach some chemicals to the downstream pipe on the pressure washer.

    Yes my plan was to spray the full roof with the IK9. Yes I'll be on the roof. I wouldn't normally do a roof but it's on a bungalow, the incline is low, and I know the owners. Unless I fell off headfirst think I'll be fine. I could jump off no problem, ha not that I plan too.

    Could you give me the quick basics of a softwash wash. I'll look into that cheers!
     
  6. Robster

    Robster Member
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    For these types of applications Bernard, Softwashing is the way forward IMO , Have a Look on youtube, you will get the visual aspect aswell as the explanation, it will be much easier to understand. The Americans are MILES ahead of us in the pressure washing / softwashing business Bernard you wont believe the systems/tools/chems etc etc that they have developed, its big business over there and time is money, ive spent weeks/months studying there methods etc, ive even phoned a few of them on occasion to seek advice and to clarify stuff ive seen them do. You dont need a softwash system per se, you can just adapt the equipment you have at very little cost. Most of them will have a dedicated softwash system, but there are loads of them that have just adapted there PW's to enable them to softwash when required and pressure wash when required.

    Good luck with your roofwash, i look forward to seeing the finished product.

    Robster
     
  7. daveyboy

    daveyboy Legend
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    Look on softwash forum uk on facebook
    The best place for any softwash advice with some real experts on there ( and Taxlossloz ) :p
     
  8. Taxlossloz

    Taxlossloz Grand Master
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  9. Taxlossloz

    Taxlossloz Grand Master
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    If your planning going up there anyway you may as well pressure wash the moss off - softwash will not remove that thick stuff
    OR.. scrape / brush on a dry day
    ( time consuming )
    then softwash
     
  10. Robster

    Robster Member
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    Using the correct equipment and the right chemicals and methods, softwashing will most definitely remove that moss from that roof .......
     
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