Rated 3.7 out of 5 by 36
Rated 2.0 out of 5.0 by TC This is NOT "no rinse" for moss on shingles
I reviewed this product as 5 of 5 stars for the for the gallon version of this concentrate without realizing I wouldn't be able to update that review to share the results so here they are...
I wanted to use this product to remove moss on the shingles of my shed. Although the product was easy to mix and apply with a standard sprayer, I still needed to scrub my roof with a wire brush to remove the moss. After two weeks, Spray & Forget had turned the green moss on my shed into a brown color. Rather than attempting to remove the moss with a brush then, I waited another two weeks to see if I could really "forget" about the moss after applying this product. Four weeks after applying the product, the moss began to regain more of a greenish color which prompted me to get up on the roof of the shed with a brush before the moss had a chance to regain any more life. It was much easier to scrub the mostly dead moss than the live moss but I have a feeling Roundup or Spectracide would have done the same thing to the moss as Spray & Forget at a fraction of the cost.
Hopefully you'll find these pictures helpful.
July 5, 2016
Rated 5.0 out of 5.0 by Jupiter Better than expected
Purchased it to use on the roof, but tried it on the cement around the pool that tends to get dark and a bit green after a lot of Florida afternoon rains. I understood from the directions that the product would take a while to see results on the roof so I wasn't expecting anything quick on the patio, in fact I planned to re-do the job after I picked up some bleach. The next day any dark spots or greenish areas were gone and the patio looks great.
August 23, 2016
Rated 5.0 out of 5.0 by JackG Paver Patio
I used Spray and Forget on an interlocking patio paving stone deck located at the rear of my house this spring. I used the concentrate and merely applied the solution to the stones and, as the directions indicate, forgot about it. Now in early August, all of the biological stains are gone and the patio looks brand new. This was the easiest deck cleaning I have ever done. The cleaner and rainfall did all of the work.
August 6, 2016
Rated 4.0 out of 5.0 by 314159 exterior home algae remover
does job of removing green algae from brick on north side of home.
July 26, 2016
Rated 1.0 out of 5.0 by Stick Poor product.
Mixed reviews on this product, but decided to give it a try. Instructions were followed as directed. I did not see any noticeable difference in my composite deck. I would not purchase this product again.
June 7, 2016
Rated 2.0 out of 5.0 by carolh no that great
After my brother told me how great this product was I had to try it for myself.Well it's not that great. It's expensive for a product that you use and have to wait two weeks to see any results from using it.And it doesn't work that well either.I have used it twice in two weeks on my vinyl railings and they still have black mold on them.The label says that the mold will slowly fade away after a few weeks when it rains but that's not the case.If it doesn't rain it is still there! I will go back to using the Olympic brand of deck/vinyl cleaner that I always use.
May 3, 2016
Rated 5.0 out of 5.0 by Randy Roof looks great.
Follow the directions and watch the mold fade away. The results are NOT immediate. It takes a few weeks and some rain to get all the mold removed. Worked great on my concrete patio furniture too.
I wet the roof and then sprayed on the product at recommended rate with a 2 gallon pump up sprayer. Measure off your roof to identify the correct square footage. I used it on asphalt shingles and they look great. Now to do the garage roof and the metal storage shed. BTW Home Depot has a larger size (better value) in the roofing section. This size was not in the area with the 64 oz. bottle.
Walking on your roof is dangerous. Be careful.
March 22, 2016
Rated 5.0 out of 5.0 by PJ ITS A MIRCLE
This works great on white fencing and siding that has mold on it. You do just what it says spray and forget. It took about 4 to 5 days and it all disappeared with no scrubbing. Made my job a hole lot easier.
May 4, 2016