Biocide on roof

[Dave B]

Got a roof to clean but the fact it is next to a school and just a little alleyway I couldn’t even get a scaffold near it
Lots of moss on there
Anyone had any luck with just biocide and no scraping?
Looking for ideas
Always scraped in the past
Cost isn’t an issue so happy to spray bio at low dilution to get it done
Anyone?

 

[Pjj]

Got a roof to clean but the fact it is next to a school and just a little alleyway I couldn’t even get a scaffold near it
Lots of moss on there
Anyone had any luck with just biocide and no scraping?
Looking for ideas
Always scraped in the past
Cost isn’t an issue so happy to spray bio at low dilution to get it done
Anyone?

Scottish was the man for doing this ????

 

[Part Timer]

Here's something to contemplate, apparently illegal so no you can't ?

Can moss be killed and controlled by soft washing? (video)

Customers asked about the best way to control moss by softwashing. Moss often starts to appear on a property after about 7 years. Moss particularly grows on tarmac drives and roof tiles. Moss will often start to grow on a roof, spreads from the roof to gutters, and then falls onto footpaths and...

www.benzsoftwash.com

 

[Pjj]

Here's something to contemplate, apparently illegal so no you can't ?

Can moss be killed and controlled by soft washing? (video)

Customers asked about the best way to control moss by softwashing. Moss often starts to appear on a property after about 7 years. Moss particularly grows on tarmac drives and roof tiles. Moss will often start to grow on a roof, spreads from the roof to gutters, and then falls onto footpaths and...

www.benzsoftwash.com

Not going to argue about the legalities but yes it will kill it no problem at all but it can’t be sold for that purpose. Personally don see a problem as many home owners buy moss killers and do there own drives , tennis courts etc

 

[Part Timer]

Not going to argue about the legalities but yes it will kill it no problem at all but it can’t be sold for that purpose. Personally don see a problem as many home owners buy moss killers and do there own drives , tennis courts etc

You don't see a problem when it's illegal?? Yet you ridicule people on here that advise things that's illegal.
The fact homeowners do it doesn't justify a professional person doing it

 

[Dave B]

I don’t understand if it’s illegal to use for that purpose or just to sell for that purpose or you need pesticide certification to use it etc
No straight answers
Same as their advice on using hypo

 

[Pjj]

You don't see a problem when it's illegal?? Yet you ridicule people on here that advise things that's illegal.
The fact homeowners do it doesn't justify a professional person doing it

No I said the home owner can do there own drives so the stuff can still be bought and used and it will do the job the legalities are a different matter . I do my own house as the home owner not a business and that’s ok , I just shouldn’t do it as a business transaction

 

[ched999uk]

The legality could be something to do with it's use. i.e. if it's used as a herbicide then you need pa1 & pa2 licence I believe. If you are using not using it as a herbicide then you are fine.
Plus it's legal for a home owner to spray their garden with weedkiller but a person getting paid to do it needs a licence!

 

[Pjj]

The legality could be something to do with it's use. i.e. if it's used as a herbicide then you need pa1 & pa2 licence I believe. If you are using not using it as a herbicide then you are fine.
Plus it's legal for a home owner to spray their garden with weedkiller but a person getting paid to do it needs a licence!

I did have pa 1 and thought it was pa6 ?.. years ago but didn’t bother renewing it complete waist of money we generally don’t spray week killers so didn’t really need it .

 

[ched999uk]

I did have pa 1 and thought it was pa6 ?.. years ago but didn’t bother renewing it complete waist of money we generally don’t spray week killers so didn’t really need it .

You are probably right re pa1/pa6 I can never remember as I'm not intending using weedkiller professionally

 

[Chris33]

It will kill lichen etc but any heavy moss build up will be dead but doesn't disappear

 

[Peter J]

If you definitely can’t find a way to scrap it just explain to the custy you’re going to kill it instead and crack on. I’ve got pa1 & 2 but no one has ever asked me for it. This post is the first time I’ve heard it mentioned since I left the exam room years ago

 

[tench0771]

It will need scraping really don’t see the point in just killing it but leving on the roof as it will just turn brown and stay there can you not put ladder up and scrap it using roof ladder or pole off ladder

 

[Yogi1872]

Spray it with algo clear pro, leave it a few months and the stuff thats left comes off very easily, then spray another lot of algo clear on it to keep moss away, it does work btw, takes all the hard work out the job really, im not to worried about the police coming to arrest me either if its illegal, unless its flat tiles, i wont be putting all that effort into scrapping again, you wait 3 months to get paid after starting the job but its not very time consuming just spraying it on and the only outlay is around £110 that your going to get back when the jobs finished anyway.

 

[Pjj]

Spray it with algo clear pro, leave it a few months and the stuff thats left comes off very easily, then spray another lot of algo clear on it to keep moss away, it does work btw, takes all the hard work out the job really, im not to worried about the police coming to arrest me either if its illegal, unless its flat tiles, i wont be putting all that effort into scrapping again, you wait 3 months to get paid after starting the job but its not very time consuming just spraying it on and the only outlay is around £110 that your going to get back when the jobs finished anyway.

We used to use ago clear pro but the price went through the roof , we have used pure seals equivalent and now use Benz stuff on any bio jobs but still prefer hypo .

 

[Pjj]

It will need scraping really don’t see the point in just killing it but leving on the roof as it will just turn brown and stay there can you not put ladder up and scrap it using roof ladder or pole off ladder

Or a scaffold tower