vapor barrier
Worth a lookShows a $1.5M/yr market, but prices mostly outside the sweet spot ($17.74–$919.17) keeps it on the watch list.
Market size
Great$1.5M$1.5M/yr · 269K searches
Review moat
Great417.69avg incumbent reviews — the moat a new listing must climb
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Avg price
Good$138.82avg listing price — sweet spot $15–$100
Brand share
Good68%top-5 brand share — brands hold most of the demand
Conversion
Good4.2%search→purchase rate — share of searches ending in a sale
Returns
Okay3.2%return rate — above 5% kills the launch gate
Growth
Okay+6.3%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Price range
Bad$17.74–$919.17cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, vapor barrier is a $1.5M/yr Amazon United States market (269K searches/yr). The top 5 brands hold 68% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
vapor barrier market data
- Units sold / yr
- 13K–15K
- avg 250–500/product
- Revenue / yr
- $1.7M–$2.1M
- units × avg price
- Conversion rate
- 4.2%
- Avg BSR
- #110
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 97%
- Out of stock
- 0.0%
- Avg brand age
- 54 months
- Avg seller age
- 188 days
Competition & brand share
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
53
Top-5 brand share
68%
Top 20: 100%
Top-5 click share
44%
Top 20: 86%
Open market
25%
- SPIRECOVER25%
- ALORAIR13%
- Frost King13%
- Crawldryer10%
- VEVOR7%
- Crawl Space DIY7%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +6.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top vapor barrier search terms
- vapor barrier81K/yr
- crawl space vapor barrier42K/yr
- 10 mil plastic sheeting32K/yr
- vapor barrier plastic19K/yr
- 10 mil vapor barrier20K/yr
- 6 mil vapor barrier10K/yr
- crawlspace vapor barriers9K/yr
- crawl space encapsulation kit9K/yr
- 6 mil polyethylene vapor barrier4K/yr
- 10mil plastic sheeting4K/yr
Top vapor barrier 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Spirecover Crawl Space Vapor Barrier 10 Mil 10x100 Black/White Panda Film
SPIRECOVER$126.514.6★392 rev
Frost King P1025B/6 Polyethylene Sheeting 10 x 25 x 6 mil. Black
Frost King$20.584.7★1,811 rev
ALORAIR 10 mil Vapor Barrier for Crawl Space 10 x 100 Heavy-Duty Plastic Sheeting Black/White Panda Film Crawlspace Encapsulation Ground Cover Drop Cloth Commercial & Residential Use
ALORAIR$119.004.3★63 rev
Spirecover White 10 Mil Plastic Sheeting 10x100 Crawlspace Vapor Barrier
SPIRECOVER$128.404.7★141 rev
VEVOR 10 Mil Plastic Sheeting Heavy Duty 10 x 100 Thick Plastic Sheeting Roll Plastic Drop Cloth Painters Tarp Polyethylene Covering for Crawl Space Vapor Barrier Multi-Purpose Black
VEVOR$87.344.7★100 rev
Newest
by launch date
Whitecap Crawl Space Encapsulation Kit 20 Mil Woven Vapor Barrier 12x100 Covers 1 200 Sq. Ft. Includes 2 Seam Tape Rolls Butyl Tape & 100 Fasteners Heavy Duty Crawl Space Vapor Barrier
Crawl Space DIY$578.750 rev
10 Mil Black Plastic Sheeting Heavy Duty 2.5ft x 100ft LLDPE Vapor Barrier for Crawl Space Encapsulation Moisture Barrier Film for Basement Landscaping Greenhouse & DIY (with Gloves)
Auliand$41.0833 rev
Whitecap Crawl Space Vapor Barrier Encapsulation Kit 12 & 20 Mil Woven Barrier for 2 000 Sq. Ft. Vapor Barrier Tape Sealant Butyl Tape & Installation Fasteners Included
Crawl Space DIY$919.170 rev
Crawldryer Black Plastic Sheeting 10 Mil 10 x 100 Crawl Space Vapor Barrier Vapor Barrier Plastic Sheeting Heavy Duty Polyethylene Plastic Rolls for Garden Crawlspace Basement Black
Crawldryer$104.4284 rev
AstrivixDD 3 Rolls Vapor Barrier Tape White Moisture Barrier Tape for Crawl Spaces Polyethylene Tape for Underlayment Waterproof Seam Tape for Insulation Plastic Liners (4 x 180 ft Each Roll)
AstrivixDD$37.8782 rev
Trending
90-day click momentumWhitecap Crawl Space Encapsulation Kit 20 Mil Woven Vapor Barrier 12x100 Covers 1 200 Sq. Ft. Includes 2 Seam Tape Rolls Butyl Tape & 100 Fasteners Heavy Duty Crawl Space Vapor Barrier
Crawl Space DIY$578.750.0★
AstrivixDD 3 Rolls Vapor Barrier Tape White Moisture Barrier Tape for Crawl Spaces Polyethylene Tape for Underlayment Waterproof Seam Tape for Insulation Plastic Liners (4 x 180 ft Each Roll)
AstrivixDD$37.874.2★
Crawldryer Black Plastic Sheeting 10 Mil 10 x 100 Crawl Space Vapor Barrier Vapor Barrier Plastic Sheeting Heavy Duty Polyethylene Plastic Rolls for Garden Crawlspace Basement Black
Crawldryer$104.424.7★
10 Mil Black Plastic Sheeting Heavy Duty 2.5ft x 100ft LLDPE Vapor Barrier for Crawl Space Encapsulation Moisture Barrier Film for Basement Landscaping Greenhouse & DIY (with Gloves)
Auliand$41.084.2★
Whitecap Crawl Space Vapor Barrier Encapsulation Kit 12 & 20 Mil Woven Barrier for 2 000 Sq. Ft. Vapor Barrier Tape Sealant Butyl Tape & Installation Fasteners Included
Crawl Space DIY$919.170.0★
What buyers say about vapor barrier
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality poly”
“Nice and thick perfect for a barrier”
“Great Adhesion”
“Great value”
“It held up well”
“As advertised”
“Very strong”
“Best plastic”
“Easy to use”
“worked great”
What buyers complain about
“Very thick sheeting”
“It is not sticky”
“hard to unfold as it is”
“Item arrived in poor quality condition”
“way more expensive”
“Deceptive, NOT 10mil, feels like my 6mil”
“the odor spread quickly”
“This is not clear, almost white”
“This is the worst quality plastic I have ever used”
“This product is heavier than I thought”
Top return reasons
Common questions
- Is vapor barrier profitable to sell on Amazon United States?
- The niche generates $1.5M/yr across 32 tracked products. 6 of 6 products launched in the last 360 days are still selling. 90-day search growth is +6.3%. Flapen's verdict: Worth a look (55/100).
- How competitive is the vapor barrier niche?
- 17 brands and 53 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 68% of demand.
- What do buyers complain about in vapor barrier?
- Top complaints mined from reviews: Thickness, Adhesion/Stickiness, Ease Of Use. The return rate is 3.2%.
- When does demand for vapor barrier peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the vapor barrier niche?
- Listings span $17.74–$919.17; the average listing price is $138.82 (sweet spot $15–$100). The average incumbent carries 418 reviews — the moat a new listing must climb.