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Started By
Message
Roof cleaning, opinions wanted
Posted on 8/25/25 at 8:25 am
Posted on 8/25/25 at 8:25 am
I have a 10 year old home, the dormers on front had gotten quite mildewed so I got my arse up on a 20 foot ladder and got them all cleaned up. They look really good. Problem is, the cleaning solution ran down the shingles under the dormer and I now have two patches of beautiful shingle, with all the black cleaned off of em. I have two choices, ignore it, or get the rest of roof cleaned to match
Ms. Foot is wanting whole roof cleaned, and I tend to agree with her that it would look so much better. My question is does anyone have any experience with this, and do the products use harm the roof at all? I know they will say they are safe, just curious if anyone has experience. My home faces North, the north and west sides are filthy, the south slope has no need for cleaning, it looks new. East has a little grime.
Ms. Foot is wanting whole roof cleaned, and I tend to agree with her that it would look so much better. My question is does anyone have any experience with this, and do the products use harm the roof at all? I know they will say they are safe, just curious if anyone has experience. My home faces North, the north and west sides are filthy, the south slope has no need for cleaning, it looks new. East has a little grime.
This post was edited on 8/25/25 at 9:59 am
3
Posted on 8/25/25 at 8:31 am to tigerfoot
I had my shingles "soft washed" a few years back.
They were almost black from algae. Afterwards they were back to gray and looked new.
It was a night and day difference. I would do it again.
They were almost black from algae. Afterwards they were back to gray and looked new.
It was a night and day difference. I would do it again.
Posted on 8/25/25 at 9:50 am to tigerfoot
quote:
My question is does anyone have any experience with this, and do the products use harm the roof at all?
I've done it myself for my own houses but my DIY method might be a bit more involved than you'd want to take on. I used an oxygen bleach solution sprayed on then rinsed off, very easy on the roof and effective.
Posted on 8/25/25 at 2:24 pm to Clames
Roof washing sucks for whoever will have to climb it later in its life
Posted on 8/25/25 at 6:00 pm to couv1217
Stop bleaching shingles. Bye, bye warranty. I guess if you don’t care but it’s also makes the shingles brittle. Heard many of those “soft wash” guys lie straight to your face and say that it won’t void your warranty
Use this product.
Use this product.
Posted on 8/25/25 at 7:11 pm to couv1217
quote:why is that?
Roof washing sucks for whoever will have to climb it later in its life
Posted on 8/25/25 at 7:38 pm to couv1217
quote:
Roof washing sucks for whoever will have to climb it later in its life
I built a spraying unit out of a cheap Rubbermaid trashcan, a 60 psi transfer pump, and some plumbing fittings. I just mixed up a trashcan full of solution and sprayed it from the ground.
Also, oxygen bleach is perfectly safe for all roof types, it's not like chlorine bleach. More like peroxide, really removes the mildew stains but doesn't hurt aluminum gutters or much else.
Posted on 8/26/25 at 8:57 am to tigerfoot
Will cause granular loss and if they don’t know what they are doing there’s a chance it will kill landscaping, grass, etc
Posted on 8/26/25 at 3:17 pm to tigerfoot
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