Leave it until the moss withers then just brush it off.
Jeyes fluid moss on roof.
It recommends 1 tbsp to 4 or 5 litres of water.
Moss on a roof is only a cosmetic problem its presence does not affect the lifespan of a tiled roof.
Allow 30 minutes then rinse off with water and scrub with yard brush.
Jeyes fluid has been around for over 140 years.
The grit is spread over the roof to do exactly what the moss is doing ie shielding the felt.
I don t know if it kills moss but it can help remove it from paths.
10 august 2010 at 11 40am.
Its the heat of the sun in summer that gubbers flat roofs as the expansion and contraction is what ruins flat roofs.
I don t think it will hurt domestic animals but it could harm insects worms slow worms etc if it reaches them.
This discussion says that the jeyes fluid you can buy now is different from the traditional product.
It is used by by vegetable gardeners to sterilise the soil and does not harm.
Anything that holds moisture on a flat roof is generally considered a benefit but more so in the summer.
Alternatively a low pressure wash with jeyes fluid or similar may do the trick applied by a long arm pipe brush.
Can jeyes fluid be used to sterilise the soil.
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.
I use diluted jeyes fluid in a watering can for killing off the moss on our block paving.
Since ec regulations in 2003 the product is no longer effective at killing moss nor will it be effective at preventing moss re growth.
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.
Pansyface peak district derbyshire posts.
Please use the jeyes fluid and the water it is dissolved in very very sparingly.
For light coloured stones.
Apply sufficient solution to thoroughly wet the affected surfaces.