How would you guys tackle this one with the bird poo? First roof with this much bird poo - customer cares more about the bird poo being gone than the massive moss growth... I'm thinking hitting it with a 4% mix, waiting about 20 min, then gently rinsing with a garden hose. Think it will take more than that such as booster pump or multiple coats?
Anyone else hit shingle roofs like this with bird poo galore? Notice too that the shingles have substantial granule loss from the seagull "talons".
-- Edited by Brandon Vaughn on Saturday 1st of March 2014 05:44:21 PM
Eric is right. It will come right off. If it is heavy enough and laid long enough, you might be surprised how damaged the shingle is underneath. That bird droppings overtime can destroy the shingle.
-- Edited by Steve Salley on Sunday 2nd of March 2014 06:33:43 PM
If you get very stubborn bird droppings I have used a product called Dirty Bird by Winsol. It is an enzymatic cleaner that digests the droppings to make them soft and then they can just be rinsed away. I used this on the underside of a bridge and it worked well. Thanks to John A. for letting me know about it.
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Chad A. Eneix, President, Water Dragon Inc. chad@waterdragoncleaning.com
The product Dirty Bird is expensive, but it works great. Here are some pics of a US Coast Guard job we did a few years ago. It was about 25,000/SF of synthetic cedar shake.