---
title: "Vapor Barrier — $1.5M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/vapor-barrier"
last_updated: "2026-08-08T08:48:24.925Z"
locale: en
meta:
description: "Niche score 55/100 · $1.5M/yr market. Prices mostly outside the sweet spot ($17.74–$919.17) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $1.5M/yr market. Prices mostly outside the sweet spot ($17.74–$919.17) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Vapor Barrier — $1.5M/yr Amazon US Niche (2026) - Flapen"
---
# **vapor barrier**
**Worth a look**
Shows a $1.5M/yr market, but prices mostly outside the sweet spot ($17.74–$919.17) keeps it on the watch list.
Market size 87Growth 33Conversion 51Competition 68Returns 48Price range 9Avg price 62Brand share 61Review moat 79Quality gap 32
**Market size**
**Great****$1.5M**
$1.5M/yr · 269K searches
**Review moat**
**Great****417.69**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****44%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Good****$138.82**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****68%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****4.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****3.2%**
return rate — above 5% kills the launch gate
**Growth**
**Okay****+6.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Price range**
**Bad****$17.74–$919.17**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**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, 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 ~~](https://flapen.com/research/methodology)
## **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.
6K4KPrime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/vapor-barrier/trend)
## **Top vapor barrier search terms**
- **vapor barrier**81K/yr-7.4%2.3% conv. - **crawl space vapor barrier**42K/yr-4.0%2.2% conv. - **10 mil plastic sheeting**32K/yr+36.1%3.0% conv. - **vapor barrier plastic**19K/yr+16.9%3.0% conv. - **10 mil vapor barrier**20K/yr+26.6%4.7% conv. - **6 mil vapor barrier**10K/yr-9.2%4.9% conv. - **crawlspace vapor barriers**9K/yr-17.1%2.9% conv. - **crawl space encapsulation kit**9K/yr-25.4%0.6% conv. - **6 mil polyethylene vapor barrier**4K/yr+116.2%6.7% conv. - **10mil plastic sheeting**4K/yr+85.4%3.7% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/vapor-barrier/search-terms)
## **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.
0%5%$77K10%$155K15%$232K20%$310K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Spirecover Crawl Space Vapor Barrier 10 Mil 10x100 Black/White Panda Film**SPIRECOVER**$126.51**4.6★392 rev](https://www.amazon.com/dp/B0C6XG39D7) [2**Frost King P1025B/6 Polyethylene Sheeting 10 x 25 x 6 mil. Black**Frost King**$20.58**4.7★1,811 rev](https://www.amazon.com/dp/B0058I67TC) [3**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**$119.00**4.3★63 rev](https://www.amazon.com/dp/B0F6V3QLN3) [4**Spirecover White 10 Mil Plastic Sheeting 10x100 Crawlspace Vapor Barrier**SPIRECOVER**$128.40**4.7★141 rev](https://www.amazon.com/dp/B0DK98CV69) [5**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**$87.34**4.7★100 rev](https://www.amazon.com/dp/B0DTK47XF1)
**~~View all top sellers →~~**
### **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**$578.75**0 rev3mo ago](https://www.amazon.com/dp/B0GYPX534B) [**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**$41.08**33 rev5mo ago](https://www.amazon.com/dp/B0G4MNJNW8) [**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**$919.17**0 rev6mo ago](https://www.amazon.com/dp/B0GK2W67Z6) [**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**$104.42**84 rev6mo ago](https://www.amazon.com/dp/B0GFDHHL6L) [**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**$37.87**82 rev7mo ago](https://www.amazon.com/dp/B0GCJ5CSDV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$578.75**0.0★**▲ 267%**](https://www.amazon.com/dp/B0GYPX534B) [**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**$37.87**4.2★**▲ 194%**](https://www.amazon.com/dp/B0GCJ5CSDV) [**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**$104.42**4.7★**▲ 191%**](https://www.amazon.com/dp/B0GFDHHL6L) [**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**$41.08**4.2★**▲ 115%**](https://www.amazon.com/dp/B0G4MNJNW8) [**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**$919.17**0.0★**▲ 102%**](https://www.amazon.com/dp/B0GK2W67Z6)
**~~View all trending →~~**
## **What buyers say about vapor barrier**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“Good quality poly”*
**Thickness**11%
*“Nice and thick perfect for a barrier”*
**Adhesion/Stickiness**10%
*“Great Adhesion”*
**Value For Money**10%
*“Great value”*
**Durability**8%
*“It held up well”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Strength**6%
*“Very strong”*
**Material Quality**5%
*“Best plastic”*
**Ease Of Use**4%
*“Easy to use”*
**Efficiency**3%
*“worked great”*
### **What buyers complain about **
**Thickness**14%
*“Very thick sheeting”*
**Adhesion/Stickiness**14%
*“It is not sticky”*
**Ease Of Use**8%
*“hard to unfold as it is”*
**Quality-Overall**6%
*“Item arrived in poor quality condition”*
**Value For Money**6%
*“way more expensive”*
**Advertised Vs Actual Product**5%
*“Deceptive, NOT 10mil, feels like my 6mil”*
**Smell**4%
*“the odor spread quickly”*
**Color**3%
*“This is not clear, almost white”*
**Material Quality**2%
*“This is the worst quality plastic I have ever used”*
**Weight Heavy**2%
*“This product is heavier than I thought”*
### **Top return reasons **
**Size-Overall**15%
**Material Quality**12%
**Value For Money**12%
**Thickness**11%
**Advertised Vs Actual Product**11%
**Adhesion/Stickiness**8%
**Thin**7%
**Functionality-Overall**5%
**Color**3%
**Weight Heavy**3%
## **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.
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