---
title: "Moss Killer for Roofs — $34K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/moss-killer-for-roofs"
last_updated: "2026-08-12T11:11:45.865Z"
locale: en
meta:
description: "Amazon product research for moss killer for roofs: $34K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for moss killer for roofs: $34K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Moss Killer for Roofs — $34K/mo Amazon US Product Research"
---
# **Moss Killer for Roofs**
**Worth a look**
Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 56Growth 46Conversion 79Competition 20Returns 98Price range 95Avg price 95Brand share 14Review moat 26Quality gap 87
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$28.25**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$17.57–$48.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Great****8.0%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$402K**
$402K/yr · 177K searches
**Growth**
**Okay****+16.9%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****3,881.54**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
## **Is moss killer for roofs profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, moss killer for roofs is a $402K/yr Amazon United States market (177K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Aug–Sep. Verdict: Worth a look — 57/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **moss killer for roofs market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$424K–$565K**
- units × avg price
- **Conversion rate**
- **8.0%**
- **Avg BSR**
- **#47**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **77%**
- **Out of stock**
- **3.3%**
- **Avg brand age**
- **78 months**
- **Avg seller age**
- **149 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**75**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**2%**
- Lilly Miller42% - Wet & Forget20% - Bayer Advanced19% - Spray & Forget9% - Scotts4% - 30 SECONDS4% - Open — no brand owns it (1 brand, 2%)
## **moss killer for roofs demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +16.9% search growth over the last 90 days.
5K3KSpike '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/health-household/moss-killer-for-roofs/trend)
## **Top moss killer for roofs search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **roof moss remover**26K/yr+82.1%5.7% conv. - **moss killer for roofs**32K/yr+3.4%7.9% conv. - **roof moss killer**22K/yr-2.3%8.0% conv. - **moss out roof**18K/yr-2.6%9.9% conv. - **moss remover for roof shingles**11K/yr+91.8%7.9% conv. - **roof moss killer for asphalt shingles**13K/yr+36.2%8.3% conv. - **moss b ware**9K/yr-39.1%1.4% conv. - **moss out roofs and walks**4K/yr+1.4%11.4% conv. - **roof algae and moss remover**4K/yr+189.5%5.4% conv. - **moss out for roofs**4K/yr+48.9%6.6% conv. [**All search terms **](https://flapen.com/research/us/health-household/moss-killer-for-roofs/search-terms)
## **Top moss killer for roofs products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$40K20%$80K30%$121K40%$161K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Lilly Miller Moss Out for Roofs and Walks Ready to Spray 27oz Natural Organic**Lilly Miller**$17.57**4.0★1,429 rev](https://www.amazon.com/dp/B000SKZ1QK) [2**BioAdvanced 2-in-1 Moss and Algae Killer for Lawns Moss Killer for Roofs Patios Decks and Deck Cleaner 32 oz**Bayer Advanced**$19.80**3.9★1,874 rev](https://www.amazon.com/dp/B001DKEPJ8) [3**Wet & Forget Moss Mold Mildew & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate Original 128 Fluid Ounces**Wet & Forget**$34.10**4.3★2,141 rev](https://www.amazon.com/dp/B0DNGFBN8F) [4**Lilly Miller Moss Out! For Roofs And Structures Dry Formula 6 Pounds**Lilly Miller**$25.43**4.4★2,113 rev](https://www.amazon.com/dp/B000NCTKQA) [5**Wet & Forget Outdoor Moss Mold Mildew & Algae Stain Remover Multi-Surface Cleaner Xtreme Reach Hose End with New & Improved Nozzle 48 Fluid Ounces**Wet & Forget**$32.97**4.0★4,182 rev](https://www.amazon.com/dp/B0CQ2XR1S2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Wet & Forget Moss Mold Mildew & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate Original 128 Fluid Ounces**Wet & Forget**$34.10**2,141 rev1y ago](https://www.amazon.com/dp/B0DNGFBN8F) [**Spray & Forget 1-Gallon Concentrated Roof Cleaner**Spray & Forget**$37.03**1,030 rev3y ago](https://www.amazon.com/dp/B0BRQR8M2B) [**Spray & Forget 1-Quart Hose End Concentrated Roof Cleaner**Spray & Forget**$27.92**1,030 rev3y ago](https://www.amazon.com/dp/B0BRQQR19M) [**Scotts MossEx 3-in-1 Ready Spray 32 fl. oz.**Scotts**$19.73**1,529 rev7y ago](https://www.amazon.com/dp/B07L19YBJ8) [**30 Seconds Outdoor Cleaner | Cleans Moss Stains from House Vinyl Siding Deck Patio Fence - 3 Capped Bottles 1 Hose End Spray Attachment (64 Fl Oz (Pack of 3)**30 SECONDS**$48.29**9,405 rev7y ago](https://www.amazon.com/dp/B07L6YC9W8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Rust-Oleum Jomax 308764 Spray Once 1 gallon**Rust-Oleum**$28.85**4.4★**▲ 106%**](https://www.amazon.com/dp/B07HSCRQ1Q) [**Spray & Forget 1-Quart Hose End Concentrated Roof Cleaner**Spray & Forget**$27.92**4.0★**▲ 82%**](https://www.amazon.com/dp/B0BRQQR19M) [**30 SECONDS Outdoor Cleaner 2 Pack with Hose End Sprayer - Cleans Stains from Algae Mold and Mildew on Vinyl Siding Deck Patio Brick and More**30 SECONDS**$37.51**4.1★**▲ 70%**](https://www.amazon.com/dp/B079J9WVM8) [**Lilly Miller Moss Out For Lawns Concentrate 1 Gallon- 10009156 Neutral**Lilly Miller**$18.95**4.4★**▲ 61%**](https://www.amazon.com/dp/B000NCUVB8) [**Lilly Miller Moss Out for Roofs and Walks Ready to Spray 27oz Natural Organic**Lilly Miller**$17.57**4.0★**▲ 60%**](https://www.amazon.com/dp/B000SKZ1QK)
**~~View all trending →~~**
## **What reviews say buyers love and hate about moss killer for roofs**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**18%
*“Cleans well”*
**Quality-Overall**17%
*“Best product available”*
**Ease Of Use**14%
*“Easy on easy off”*
**Advertised Vs Actual Product**10%
*“Better than I expected”*
**Efficiency**6%
*“Very effective”*
**Value For Money**6%
*“Best price”*
**Spray/Flow**4%
*“This spray is the best”*
**Instructions/User Manual/Troubleshooting**2%
*“Works exactly as instructions read”*
**Plant Growth**2%
*“seems good for the grass growth”*
**Functionality-Overall**2%
*“It works okay”*
### **What buyers complain about **
**Functionality-Overall**24%
*“It does not work as described”*
**Leak-Proof**15%
*“Arrived leaking”*
**Ease Of Cleaning**10%
*“Worst cleaner ever bought”*
**Value For Money**9%
*“Not Worth The Price”*
**Spray/Flow**6%
*“Terrible for spraying”*
**Advertised Vs Actual Product**4%
*“False advertising”*
**Smell**3%
*“Strong odor”*
**Quality-Overall**3%
*“The price is way too high for quality you get”*
**Instructions/User Manual/Troubleshooting**2%
*“Not sure how itll work as it has absolutely no directions for use”*
**Stain Resistance**2%
*“Im more upset that it stained my new driveway”*
### **Top return reasons **
**Leak-Proof**28%
**Functionality-Overall**20%
**Advertised Vs Actual Product**13%
**Value For Money**10%
**Spray/Flow**8%
**Defective Material/Parts**4%
**Size-Overall**3%
**Product Condition**1%
**Add-Ons/Attachments**1%
**Ease Of Cleaning**1%
## **Common moss killer for roofs questions**
- **Is moss killer for roofs profitable to sell on Amazon United States?**
- The niche generates $402K/yr across 13 tracked products. 90-day search growth is +16.9%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the moss killer for roofs niche?**
- 7 brands and 75 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in moss killer for roofs?**
- Top complaints mined from reviews: Functionality-Overall, Leak-Proof, Ease Of Cleaning. The return rate is 0.4%.
- **When does demand for moss killer for roofs peak?**
- Demand peaks in Aug–Sep; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the moss killer for roofs niche?**
- Listings span $17.57–$48.29; the average listing price is $28.25 (sweet spot $15–$100). The average incumbent carries 3,882 reviews — the moat a new listing must climb.
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