Jeyes fluid has been around for over 140 years.
Jeyes fluid moss on roof.
For light coloured stones.
Since ec regulations in 2003 the product is no longer effective at killing moss nor will it be effective at preventing moss re growth.
After about five or six years when the original polymer coating on concrete tiles has dissolved away or after cleaning off old moss and lichen it would be worth treating the surface of the tiles with a biocide a cocktail of fungicide bactericide and algaecide or a very strong horticultural disinfectant like jeyes fluid.
Leave it until the moss withers then just brush it off.
It recommends 1 tbsp to 4 or 5 litres of water.
Apply sufficient solution to thoroughly wet the affected surfaces.
Anything that holds moisture on a flat roof is generally considered a benefit but more so in the summer.
Allow 30 minutes then rinse off with water and scrub with yard brush.
Regrettably as this product is now subject to ministry regulations we are unable at present to confirm recommendations other than those printed on the latest can.
Have a good look at the jeyes fluid web site as it has been used a a disinfectant in gardening for 50 or 60 years i would guess.
10 august 2010 at 11 40am.
It is used by by vegetable gardeners to sterilise the soil and does not harm.
Can jeyes fluid be used to sterilise the soil.
I use diluted jeyes fluid in a watering can for killing off the moss on our block paving.
Please use the jeyes fluid and the water it is dissolved in very very sparingly.
Moss on a roof is only a cosmetic problem its presence does not affect the lifespan of a tiled roof.
Its the heat of the sun in summer that gubbers flat roofs as the expansion and contraction is what ruins flat roofs.
Pansyface peak district derbyshire posts.
The grit is spread over the roof to do exactly what the moss is doing ie shielding the felt.
I don t think it will hurt domestic animals but it could harm insects worms slow worms etc if it reaches them.
It was patented in 1877 and given a royal warrant in 1896 so it would be fair to say that it is a well established household name in the uk for garden and outdoor disinfectant.
Concrete paths and patios to kill mould algae and fungi dilute 150ml to every 5 litres of water.
