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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Building Questions >> Roof moss https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1512317037 Message started by Natedog on Dec 3^rd, 2017, 4:03pm

Title: Roof moss
Post by Natedog on Dec 3^rd, 2017, 4:03pm

Every winter we have problems with the gutters and more importantly the "valley" roof (it's not s proper valley) getting blocked with moss that has come off the roof.

Short of climbing on the roof every 6 months to clean it all off, is there anything I can treat the roof with to kill it off and stop it coming back?

Title: Re: Roof moss
Post by woodsmith on Dec 3^rd, 2017, 4:45pm

There are various chemicals available but they don't give a lasting protection. To eradicate the moss for years you would need to fix a copper or zinc flashing to, or just below, the ridge. Westfalia sell a self adhesive copper strip which would do the trick if you can get up to the ridge safely. Trouble is it doesn't look very sightly having a broad copper band stuck to the roof. You may be able to get some thin sheet copper and fabricate something yourself, perhaps try a small area first and see how well it works.

Title: Re: Roof moss
Post by Natedog on Dec 4^th, 2017, 5:28pm

I've got a few long-ish lengths of 15mm copper pipe. Might try slitting it along it's length and opening it out flat.

Thanks matey :-)

Title: Re: Roof moss
Post by thescruff on Dec 5^th, 2017, 9:55am

Copper will do the job but Zinc will do it better for less loot.

More money but you can buy a zink faced flashband type product that simply sticks on the ridge