Moss on Roof of House - Problem

Conology

Hi
I have some moss growing on the roof of the house and just wonder how it might be cleared and prevented in future.
Someone suggest running a "Copper" wire on top of the roof from end to end and the water running off the wire does the trick - has anyone tried this?

Thanks

tedimc

Sorry for bringing up an old thread (and cross posting), but would something like this item (http://www.ebay.com/itm/50mm-X-30M-Conductive-Copper-Foil-Tape-Adhesive-Slug-Snail-Barrier-Fender-Wall-/221343891936?pt=LH_DefaultDomain_0&hash=item33891fc1e0) do the trick to prevent moss and algae on a natural slate roof.

Price wise it would not be bad and would be easy to put on.

bonzodog2

FWIW, I've often noticed an absence of lichen & moss on roofs below zinc and lead flashing

North West

Hi Conology
clean off moss etc off roof first. buy enough copper wire to do the job. Use silicone with the copper wire to adhere it just under ridge tile ( You do not need to silicone right across roof, just enough to hold wire.The wire will not stain roof.
NW

Prisoner6409

Is it a line of copper wire running from side to side or front to back under the ridge line of the tiles. At what kind of intervals do I need to string the wire.

Deep Thought

we got a job done on our roof 2 years ago, roof was power-washed and then a special paint was applied.

No moss since, sadly our neighbor didn't get it done and fecking birds and dropping all their moss onto my decking

sky6

Prisoner6409 wrote: »

Is it a line of copper wire running from side to side or front to back under the ridge line of the tiles. At what kind of intervals do I need to string the wire.

Copper wire won't really do the job simply the surface area of the wire is to small. The roofing companies sell the roll out stuff but it's really for new builds. I put it on the garage when building and it works fine. Another options is to get a sheet metal shop to cut 5 or 6 inch strips of Copper and slide them up under the ridge tiles and secure so it cannot fall out. After a few Months they be green and you'll hardly see them.

RedGableDave

I know this is an old thread but I thought it would be useful to add the following:

Copper does work but you will need a reasonable thickenss of it along both sides of the ridge. However, it will kill everything including down the drain so it is not particularily environmentally friendly.

There are many companies that now specialise in roof cleaning. Again, you need to know how to tell the good from the bad. Pressure washing roofs is generally bad and slate / tile manufactures recommend that you do not do this. The latest method is called soft washing as it uses low pressure to deliver a chemical onto the roof to kill the moss. Some of these chemicals are also very damaging and while they will kill the moss, they will also damage the roof which in turn will help the moss return with more vigour.

The best way is to use a reputable company that uses a proper biocide and is insured for this work. If doing it yourself then look for a moss remover that has either DDAC or BAC as the active biocide. Avoid anything with sodium hypochlorite in it.