Spray and forget roof cleaner reviews

Top critical review

1.0 out of 5 stars[UPDATE Nov] It doesn't work. [It makes it worse... yes, really]

Reviewed in the United States 🇺🇸 on October 11, 2020

[Update Nov] It has been 80 days, tropical storms and a hurricane have come through, the untreated and treated areas are exactly the same. The treated area that went through the above and then I power washed looks worse than the area I did not treat and just power washed. See photo. Amazon made it right and refunded my money.
[/Update Nov]

[Update Oct]
It actually sealed in the mildew / algae and now the power washed can't get it off. I'm adding photos. FOR THE LOVE OF ALL THAT IS GOOD... DO. NOT. BUY!!! This is after 30 days, two applications, and multiple Florida tropical storms... No change. I have been taking picture regularly with a control area that has not been treated on the west side of my house. The manufacturer states it _could_ take up to 60 - 180 days... [doubt]
[/Update]

TLDR; Barrel tile roof in Florida, power washed most of one side, then used this on the remainder. I followed the instructions and used the standard mix, no change. Repeated with max mix, no change. Power washed the rest of the roof.

Living in Florida with a barrel tile roof and an HOA is fun. Thank goodness for Florida Man to keep us entertained. I power washed the front (east) and most of the north side before running out of gas. My neighbor suggested this stuff so I thought sure, good time to try it. I bought two 1 gallon jugs and a backpack sprayer. I mixed at the standard rate and applied to un-power washed area of the north side leaving a control area. It did not rain for a day and then we had a few days of typical downpours. No change. I mixed up to the max rate and treated the area again. It didn't rain for three days, then again downpours for a few days. Still no change. I power washed the rest of the roof that was not treated. I really wanted it to work, power washing a roof is not fun... letting the west side work for a little longer to see if it does work eventually.

Customer Reviews

  • 3.8 out of 269 reviews

  • 73%recommend this product

Removes stains. Does not remove moss.

I bought this exact product from Home Depot in June of 2019 to remove bright green moss growth on the north side of my roof, mostly because the before and after pictures on the product label attached to the bottle clearly show that's what it's for. And, within 48 hours of application, the moss turned brown. Great! Unfortunately, that's all that happened. Nine months later, Feb. 2020, that ugly brown growth is still attached to my shingles, as firmly as ever. Now, I'm thinking that I'll have to power wash it off, which is what I should have done in the first place! This product does remove mildew stain (that I didn't even realize was there), but it does NOT remove moss growth. The before and after pictures attached to the product label clearly indicate that it should, but as my own pictures show, that's not been my experience.

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10 found this review helpful

Best product for cleaning...

Best product for cleaning

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  • Verified Purchase

Rating provided by a verified purchaser...

Rating provided by a verified purchaser

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  • Verified Purchase

Forget Spray and Forget

I did return this product to Home depot for a refund. It did not work at all

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  • Verified Purchase

After two cleanings stains remain...

After two cleanings stains remain

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  • Verified Purchase

Spray and forget is a very good product to remove...

Spray and forget is a very good product to remove mildew and algae from your tile roof or sidewalk

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  • Verified Purchase

Product worked as described, very happy with the results...

Product worked as described, very happy with the results

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  • Verified Purchase

Not recommended, did not perform as described. I have used...

Not recommended, did not perform as described. I have used other products that actually worked.

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  • Verified Purchase

1 found this review helpful

Rating provided by a verified purchaser...

Rating provided by a verified purchaser

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  • Verified Purchase

Works great

Works great, goes on easy

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  • Verified Purchase

  • Recommended

  • Verified Purchase

  • Verified Purchase

  • Verified Purchase

Works as described

Sprayed it on & forgot it. Within 2-3 days, mildew, moss, and stains were gone or killed. Heavy moss on roof died & used a push broom to brush it off. Used a garden sprayer with recommended dilution to apply it.

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  • Verified Purchase

  • Recommended

Forget what?

Doesn't seem to clean the driveway but did kill the moss. Will it wash off later. After a week it looks bad.

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  • Verified Purchase

Spray and forget appears to work as described with good...

Spray and forget appears to work as described with good results so far. I and my clients are waiting to measure long lasting results.

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  • Verified Purchase

As advertised.

It works just as advertised. Easy to apply and you'll see the results within a few days.

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  • Verified Purchase

  • Recommended

I've used the pre-mmix solution that hooks up to a...

I've used the pre-mmix solution that hooks up to a hose and that worked great. With the gallon, after following instructions to the letter, and even adding a little extra which the instructions said could be done, didn't do the job. I would not recommend the gallon, and the premix gets expensive. So I'm back to Jomax and bleach. That I know works...

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  • Verified Purchase

Didn’t work. I sprayed entire front side of roof exactly...

Didn’t work. I sprayed entire front side of roof exactly as directions state. Roof still looks like crap.

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  • Verified Purchase

2 found this review helpful

This spray is very effective it,s great....

This spray is very effective it,s great.

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  • Verified Purchase

No to the large container

I don't like the 5 gallon container as there is a lot of waste when trying to transfer it into a smaller, usable container. I wanted some one gallon containers at the time but there wasn't any available. I won't buy the larger container again.

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  • Verified Purchase

Sprayed roof, rained and roof looks somewhat cleaner, have a...

Sprayed roof, rained and roof looks somewhat cleaner, have a few areas which may need a second application.

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1 found this review helpful

Product did not produce results expected...

Product did not produce results expected

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1 found this review helpful

This product does not work. Use Clorox Outdoor Bleach...

This product does not work. Use Clorox Outdoor Bleach $7 vs this at $25

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2 found this review helpful

I am maintenance manager for a condominium complex in Lakeland...

I am maintenance manager for a condominium complex in Lakeland FL. We use this product all the time on our roofs and have had exceptional results. The name says it all... Spray and Forget. Nothing could be easier.

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I have used this excellent product for a number of...

I have used this excellent product for a number of years. I am in Georgia in the woods and the roof is mainly in the shade. Mold grows easily and even moss. I need a treatment about every two years to keep the shingles clean. As the directions tell you it does takes some time to see the results.

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1 found this review helpful

Did not work, overpriced....

Did not work, overpriced.

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After 2 weeks very little change in my roof cleaning...

After 2 weeks very little change in my roof cleaning attempt. This is not a good product!

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1 found this review helpful

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How long does it take spray and forget to work?

A: On average, green stains will disappear in 1-3 days, black stains on non-roof surfaces will disappear in 1-8 weeks, and roof stains will disappear in 30-180 days.

How long does it take for roof Wet and Forget to work?

Turn the dial to the 'ON' setting and saturate the affected area with the diluted Wet & Forget at a time that allows the surface 4 to 5 hours to dry before the threat of rain. Walk away, and let Wet & Forget annihilate the moss, mold, mildew and algae.

What is the best product to clean roof shingles?

They cut through the dirt, grime, and sludge, revealing your roof's true colors..
BEST OVERALL: Wet and Forget Moss, Mold and Mildew Stain Remover..
BEST BANG FOR THE BUCK: Mold Armor E-Z House Wash 64 fl. ... .
BEST BLEACH: MOLD ARMOR CLEANER 1 GAL..
BEST CHEMICAL: Spray & Forget Revolutionary Roof Cleaner Concentrate..