Cleaning Roof

I am not pushing this product but merely reporting my experience using it.
Spray and leave patio cleaner, can be diluted 5 to 1 cost about £12 for five litres.
I contacted the manufacturer and asked if could be used of fibreglass to which they said it'll be fine.
It worked a treat on my roof when I sprayed it through the Heki. It contains a biocide and  the same range of chemicals are used as antimicrobials and disinfectants.

Key Features are stated as:

Works on all outdoor surfaces, child/pet friendly,biodegradable, no bleach or acid, protects for over 6 months.

I used it last year and report no ill affects and the roof, and it carrys on retarding growth of algae and lichen
Some may have concerns but it worked for me.

JohnnyT

A lot of owners swear by Wet and Forget . As you have found out there are several products available in garden centres and DIY sheds that do exactly the job at half the price of Wet and Forget.

Another thumbs up for Wet and Forget.  I used it 2 years ago on my Symbol roof and it has remained algae free ever since.

Sounds good Johnny - what's it called please?
Barry

Thanks, Peter: have just ordered that Patio Magic, because the roof of my Nuevo is getting like a bowls green. It's a bit dodgy up there when the roof is wet - no guard rail etc. I've used a long step ladder, and a long-handled car-washing brush, but that can't reach under the ariel etc, so a spray (from a bottle) will be better, especially if it involves no scrubbing and prevents recurrence for a few months.
Thanks for the tip.

Cymro

Thanks, Peter. I'll do it on a dry day (if ever!) and then wash away the residue. No doubt it'll run all down the waxed sides, which will then have to be cleaned....
Notwithstanding that the GRP roof isn't absorbent, it can't be worse off for having been sprayed with that stuff.

I'm wondering whether - having treated the roof and washed off all residue (if necessary with a brush on hands & knees & a prayer) I should then re- lightly leave it to dry.

Cymro

I don't know about other brands but with Wet & Forget you literally do just that, you do not rinse off any residue.  It works fairly slowly but keeps working long term.

It is Jarder spray and leave.
It is best to put on in a dry spell and let it work for a day or so.
The rain just washes it off hopefully after it kills off the algae.
It wont last as long as say on stone flags but it saves mountaineering onto the roof.

It is Jarder spray and leave.
It is best to put on in a dry spell and let it work for a day or so.
The rain just washes it off hopefully after it kills off the algae.
It wont last as long as say on stone flags but it saves mountaineering onto the roof.

Hi,
I use wet and forget, I Tried Patio Magic but it needed doing again after a few months unlike wet and forget last's a lot longer (woks out cheaper in the long run) never used it on the van though.
Pete