moisture barrier underlayment
Skip itA small market ($71K/yr) — this niche doesn't clear our bar today.
Avg price
Great$58.55avg listing price — sweet spot $15–$100
Price range
Good$12.27–$127.72cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good814.94avg incumbent reviews — the moat a new listing must climb
Returns
Good2.8%return rate — above 5% kills the launch gate
Growth
Good+20.3%90-day search growth — must beat 0% to launch
Conversion
Okay3.1%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Brand share
Bad91%top-5 brand share — brand-locked demand
Competition
Bad74%top-5 click share — a locked-up shelf
Market size
Bad$71K$71K/yr · 38K searches
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
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.No pronounced peak months · busiest ÷ quietest = 1.2×
Top moisture barrier underlayment search terms
- moisture barrier underlayment16K/yr
- moisture barrier14K/yr
- vapor barrier underlayment8K/yr
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.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
ROBERTS 70-115 Moisture Barricade Underlayment Film for Vinyl Laminate SPC Engineered Wood Floors 6 mil. Thick Polyethylene 120 Sq. Foot Roll Black
ROBERTS$21.784.5★801 rev
Roberts 70-117 Moisture Barricade 6 mil Polyethylene Film Roll 600 sq. ft.
ROBERTS$58.334.5★801 rev
Frost King P1025B/6 Polyethylene Sheeting 10 x 25 x 6 mil. Black
Frost King$20.634.7★1,804 rev
Roberts 70-118 Moisture Barricade 6 mil Polyethylene Film Roll 1 000 sq. ft.
ROBERTS$93.654.5★801 rev
Moisture/Vapor Barrier Underlayment for Laminate Engineered Hardwood Floors (.006 Mil Thick Polyethylene Film) - 100 Sq Ft Roll
MP Global Products$14.804.3★194 rev
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$49.026 rev
Roberts 70-117 Moisture Barricade 6 mil Polyethylene Film Roll 600 sq. ft.
ROBERTS$58.33801 rev
Roberts 70-118 Moisture Barricade 6 mil Polyethylene Film Roll 1 000 sq. ft.
ROBERTS$93.65801 rev
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$45.4164 rev
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$127.72110 rev
Trending
90-day click momentumALORAIR 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$45.414.4★
Roberts 70-118 Moisture Barricade 6 mil Polyethylene Film Roll 1 000 sq. ft.
ROBERTS$93.654.5★
SUNSHORE 6 Mil 360 sq. ft. Black Moisture Barricade Underlayment Polyethylene Film Roll for Vinyl Laminate SPC Engineered Wood Floors with Adhesive Strip
SUNSHORE$49.024.8★
Roberts 70-117 Moisture Barricade 6 mil Polyethylene Film Roll 600 sq. ft.
ROBERTS$58.334.5★
Frost King P1025B/6 Polyethylene Sheeting 10 x 25 x 6 mil. Black
Frost King$20.634.7★
What buyers say about moisture barrier underlayment
What buyers praise and complain about, mined from review topics.What buyers love
“Great Adhesion”
“Great partition”
“the material is thick enough to be durable while still being easy to roll out”
“Great value”
“Easy to use”
“It works as advertised”
“Worked for me”
“There is no burning or irritation with this product”
“This cream protects”
“Strong and durable”
What buyers complain about
“Did not stick very well”
“It's misleading”
“Bed sore”
“Item arrived in poor quality condition”
“Very difficult to use”
“Not as heavy as I prefer”
“Might be slightly thinner than 6mil”
“Its expensive”
“She is sensitive to acidic foods”
“Very affective”
Top return reasons
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.