If the water will not reach the peak of the roof from the ground you can spray while standing on a ladder.
Removing moss from a flat roof.
The grit is spread over the roof to do exactly what the moss is doing ie shielding the felt.
Again many years of roof life are lost to power washing.
Apply cleaning solution only after the roof and moss are thoroughly wet.
Most homeowners will have noticed that their flat roof is regularly invaded by the green pest and while it does no damage to flat roofing materials it can retain moisture which will accelerate wear and tear on the flat roof.
Anything that holds moisture on a flat roof is generally considered a benefit but more so in the summer.
If you re going to use one of these solutions to remove moss climb down from the roof and cover any landscaping that s in the line of fire with a plastic tarp.
More importantly as many types of roof coating start to age they will slowly form small bumps and impressions.
How to remove moss from an asphalt roof a reader wants to get this moss cleared off an asphalt roof without damaging the shingles.
When the moss is dead scrub it off then install zinc flashing to prevent more moss growth.
To remove moss you first have to kill it.
Removing moss and algae from a flat roof can seem like a never ending task.
But in most cases the solution used on roof moss is bleach.
Hose off and brush all moss loose from your roof shingles.
Mix the bleach with the water in a large bucket.
If you need to get rid of moss on your roof the hardest part is the labor required.
Carefully get up to your roof and brush downward to knock the moss.
Even so you will always need to mount the roof later on in order to remove the dead moss.
Get a stiff bristle scrub brush and attach it to the end of a pole if you don t have a random pole hanging around a broom will work as well.
The removal of moss from a flat roof is very important as moss will cause damage to many types of roof coating if allowed to grow as well as rolling into gutters which can cause blockages.
Scrub at the moss with this mixture until the moss is gone.
Its the heat of the sun in summer that gubbers flat roofs as the expansion and contraction is what ruins flat roofs.
In my experience kill the moss let it die and in a few weeks manually remove the dead moss with a soft cedar shingle it s not easy but it works.
Liquid moss killers cover the roof more evenly than dry powders and they let you stay on the ground for the application.
Moss growing on a roof lifts the shingles and allows water to seep underneath and rot the roof deck.
