---
title: "Moisture Barrier Underlayment — $71K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/moisture-barrier-underlayment"
last_updated: "2026-08-08T22:55:06.992Z"
locale: en
meta:
description: "Niche score 39/100 · $71K/yr market · 38K searches/yr · $58.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $71K/yr market · 38K searches/yr · $58.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Moisture Barrier Underlayment — $71K/yr Amazon US Niche (2026) - Flapen"
---
# **moisture barrier underlayment**
**Skip it**
A small market ($71K/yr) — this niche doesn't clear our bar today.
Market size 18Growth 50Conversion 39Competition 22Returns 55Price range 74Avg price 90Brand share 24Review moat 67Quality gap 27
**Avg price**
**Great****$58.55**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$12.27–$127.72**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****814.94**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Growth**
**Good****+20.3%**
90-day search growth — must beat 0% to launch
**Conversion**
**Okay****3.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****74%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$71K**
$71K/yr · 38K searches
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, moisture barrier underlayment is a $71K/yr Amazon United States market (38K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 39/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **moisture barrier underlayment market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$88K–$117K**
- units × avg price
- **Conversion rate**
- **3.1%**
- **Avg BSR**
- **#72**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **63%**
- **Out of stock**
- **5.3%**
- **Avg brand age**
- **56 months**
- **Avg seller age**
- **168 days**
## **Competition & brand share**
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▲rising
**Sellers**
**49**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**74%**
Top 20: 100%
**Open market**
**9%**
- ROBERTS52% - Frost King22% - MP Global Products6% - Be$t Laminate4% - PURTERIA4% - SPIRECOVER4% - Open — no brand owns it (6 brands, 9%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +20.3% search growth over the last 90 days.
1K600Spike '24Black Friday '24Prime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/moisture-barrier-underlayment/trend)
## **Top moisture barrier underlayment search terms**
- **moisture barrier underlayment**16K/yr-0.5%2.9% conv. - **moisture barrier**14K/yr+4.3%2.0% conv. - **vapor barrier underlayment**8K/yr+120.7%2.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/moisture-barrier-underlayment/search-terms)
## **Top moisture barrier underlayment products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$7K20%$14K30%$21K40%$28K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**ROBERTS 70-115 Moisture Barricade Underlayment Film for Vinyl Laminate SPC Engineered Wood Floors 6 mil. Thick Polyethylene 120 Sq. Foot Roll Black**ROBERTS**$21.78**4.5★801 rev](https://www.amazon.com/dp/B0026T3Q2W) [2**Roberts 70-117 Moisture Barricade 6 mil Polyethylene Film Roll 600 sq. ft.**ROBERTS**$58.33**4.5★801 rev](https://www.amazon.com/dp/B0FQMP3H94) [3**Frost King P1025B/6 Polyethylene Sheeting 10 x 25 x 6 mil. Black**Frost King**$20.63**4.7★1,804 rev](https://www.amazon.com/dp/B0058I67TC) [4**Roberts 70-118 Moisture Barricade 6 mil Polyethylene Film Roll 1 000 sq. ft.**ROBERTS**$93.65**4.5★801 rev](https://www.amazon.com/dp/B0FQMJ4GC9) [5**Moisture/Vapor Barrier Underlayment for Laminate Engineered Hardwood Floors (.006 Mil Thick Polyethylene Film) - 100 Sq Ft Roll**MP Global Products**$14.80**4.3★194 rev](https://www.amazon.com/dp/B00A52RQV4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SUNSHORE 6 Mil 360 sq. ft. Black Moisture Barricade Underlayment Polyethylene Film Roll for Vinyl Laminate SPC Engineered Wood Floors with Adhesive Strip**SUNSHORE**$49.02**6 rev8mo ago](https://www.amazon.com/dp/B0FYML9PM1) [**Roberts 70-117 Moisture Barricade 6 mil Polyethylene Film Roll 600 sq. ft.**ROBERTS**$58.33**801 rev10mo ago](https://www.amazon.com/dp/B0FQMP3H94) [**Roberts 70-118 Moisture Barricade 6 mil Polyethylene Film Roll 1 000 sq. ft.**ROBERTS**$93.65**801 rev10mo ago](https://www.amazon.com/dp/B0FQMJ4GC9) [**ALORAIR Crawl Space Vapor Barrier 10 mil 10x25 Drop Cloth Vapor Barrier Covering for Crawlspace Encapsulation Moisture Control Thick Plastic Sheeting Heavy Duty Black and White Panda Film**ALORAIR**$45.41**64 rev1y ago](https://www.amazon.com/dp/B0F63DYG1D) [**Purteria Crawl Space Vapor Barrier 10 Mil 10 x 100 White Vapor Barrier Thick Plastic Sheeting Heavy Duty Polyethylene Film Drop Cloth Covering for Crawlspace Basement**PURTERIA**$127.72**110 rev1y ago](https://www.amazon.com/dp/B0DFGL1JLG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ALORAIR Crawl Space Vapor Barrier 10 mil 10x25 Drop Cloth Vapor Barrier Covering for Crawlspace Encapsulation Moisture Control Thick Plastic Sheeting Heavy Duty Black and White Panda Film**ALORAIR**$45.41**4.4★**▲ 135%**](https://www.amazon.com/dp/B0F63DYG1D) [**Roberts 70-118 Moisture Barricade 6 mil Polyethylene Film Roll 1 000 sq. ft.**ROBERTS**$93.65**4.5★**▲ 122%**](https://www.amazon.com/dp/B0FQMJ4GC9) [**SUNSHORE 6 Mil 360 sq. ft. Black Moisture Barricade Underlayment Polyethylene Film Roll for Vinyl Laminate SPC Engineered Wood Floors with Adhesive Strip**SUNSHORE**$49.02**4.8★**▲ 102%**](https://www.amazon.com/dp/B0FYML9PM1) [**Roberts 70-117 Moisture Barricade 6 mil Polyethylene Film Roll 600 sq. ft.**ROBERTS**$58.33**4.5★**▲ 45%**](https://www.amazon.com/dp/B0FQMP3H94) [**Frost King P1025B/6 Polyethylene Sheeting 10 x 25 x 6 mil. Black**Frost King**$20.63**4.7★**▲ 37%**](https://www.amazon.com/dp/B0058I67TC)
**~~View all trending →~~**
## **What buyers say about moisture barrier underlayment**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Adhesion/Stickiness**16%
*“Great Adhesion”*
**Quality-Overall**13%
*“Great partition”*
**Thickness**9%
*“the material is thick enough to be durable while still being easy to roll out”*
**Value For Money**7%
*“Great value”*
**Ease Of Use**7%
*“Easy to use”*
**Advertised Vs Actual Product**6%
*“It works as advertised”*
**Efficiency**5%
*“Worked for me”*
**Allergies**4%
*“There is no burning or irritation with this product”*
**Protection**4%
*“This cream protects”*
**Durability**4%
*“Strong and durable”*
### **What buyers complain about **
**Adhesion/Stickiness**23%
*“Did not stick very well”*
**Advertised Vs Actual Product**8%
*“It's misleading”*
**Pain Relief-Overall**8%
*“Bed sore”*
**Quality-Overall**8%
*“Item arrived in poor quality condition”*
**Ease Of Use**8%
*“Very difficult to use”*
**Weight Heavy**4%
*“Not as heavy as I prefer”*
**Thickness**4%
*“Might be slightly thinner than 6mil”*
**Value For Money**4%
*“Its expensive”*
**Acid Regulator/Stomach Ache Relief**4%
*“She is sensitive to acidic foods”*
**Allergies**4%
*“Very affective”*
### **Top return reasons **
**Size-Overall**15%
**Value For Money**13%
**Adhesion/Stickiness**12%
**Advertised Vs Actual Product**10%
**Thickness**10%
**Thin**9%
**Material Quality**7%
**Functionality-Overall**4%
**Assembly/Installation**3%
**Product Condition**3%
## **Common questions**
- **Is moisture barrier underlayment profitable to sell on Amazon United States?**
- The niche generates $71K/yr across 16 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +20.3%. Flapen's verdict: Skip it (39/100).
- **How competitive is the moisture barrier underlayment niche?**
- 12 brands and 49 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in moisture barrier underlayment?**
- Top complaints mined from reviews: Adhesion/Stickiness, Advertised Vs Actual Product, Pain Relief-Overall. The return rate is 2.8%.
- **When does demand for moisture barrier underlayment peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the moisture barrier underlayment niche?**
- Listings span $12.27–$127.72; the average listing price is $58.55 (sweet spot $15–$100). The average incumbent carries 815 reviews — the moat a new listing must climb.
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