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

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

Probably Patio Magic, works well on hard and soft surfaces. https://www.amazon.co.uk/Patio-Magic-Cleaner-2-5L-Refill/dp/B001VEJCLM/ref=asc_df_B001VEJCLM/?tag=googshopuk-21&linkCode=df0&hvadid=231845867220&hvpos=1o4&hvnetw=g&hvrand=16819028778989041659&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9050376&hvtargid=pla-387863051231&psc=1&th=1&psc=1

It will kill the algae growth but won't get rid of the residue of dead algae. Best to use when rain not expected for a few days (  ) and then heavy rain or a hose spray to wash the residue away. Works best on slightly absorbent surfaces where a residue of the PM remains to continue to stop re-occurrence.

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