Yellow lichen removal

« **on:** March 14, 2021, 02:59:07 pm »

hi all,

got my first job coming up monday. The roof is heavily coated in yellow lichen. What do people find the best chemical is for removing this stuff? I've got a wfp, back pack and also scrapers. Has anyone used the "wet and forget" or "TORNADO CLEANZE" for this?
thanks

« **Reply #1 on:** March 14, 2021, 04:00:24 pm »

No and NO

Hypo - quick and effective

Darran

« **Reply #2 on:** March 16, 2021, 07:08:06 pm »

How do you stop it reacting to lead?
The roof I’m about to clean has a lot of UPVC windows and Conservatory with a blue glass roof. What’s the best way to not get any hypo on these bits? Will I be okay as long as i rinse them regularly? How long can a 5% hypo mix stay on upvc before damaging? Thanks

« **Reply #3 on:** March 16, 2021, 08:06:54 pm »

I think its best to use a biocide like benz or algo clear pro its best to scrape as much off as possible then biocide i like to then give a second treatment after after hole roof has been treated i also prefer to brush in the biocide much easer than hypo and no worry about lead 😀

« **Reply #4 on:** March 16, 2021, 10:27:23 pm »

Have you tried scooping yellow lichen ? - if you have you won't want to do it again

Benz is basically hypo with an expensive label on the can

You won't hurt UPVC - doubtful you would hurt lead as with any chemical you need to be careful and work methodically if you think your going to spay half the neighbourhood then best leave the job alone

Darran

« **Reply #5 on:** March 17, 2021, 05:48:12 pm »

Quote from: Smudger on March 16, 2021, 10:27:23 pm

Have you tried scooping yellow lichen ? - if you have you won't want to do it again

Benz is basically hypo with an expensive label on the can

You won't hurt UPVC - doubtful you would hurt lead as with any chemical you need to be careful and work methodically if you think your going to spay half the neighbourhood then best leave the job alone

Darran

« **Reply #6 on:** March 17, 2021, 06:08:06 pm »

Quote from: Smudger on March 16, 2021, 10:27:23 pm

Have you tried scooping yellow lichen ? - if you have you won't want to do it again

Benz is basically hypo with an expensive label on the can

You won't hurt UPVC - doubtful you would hurt lead as with any chemical you need to be careful and work methodically if you think your going to spay half the neighbourhood then best leave the job alone

Darran

its not to bad with the scraper kit Benz biocide will kill it and any left bits will fall down the roof after a wile im not a fan of hypoing roofs prefer bio personal preference realy