---
title: "Trend — 20 mil vapor barrier for crawl space - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/20-mil-vapor-barrier-for-crawl-space/trend"
last_updated: "2026-08-08T08:00:30.638Z"
locale: en
meta:
  description: "Niche score 36/100 · $287K/yr market · 45K searches/yr · $307.91 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 36/100 · $287K/yr market · 45K searches/yr · $307.91 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Trend — 20 mil vapor barrier for crawl space - Flapen"
---

# **20 mil vapor barrier for crawl space**

**Skip it**

Prices mostly outside the sweet spot ($13.68–$919.17) — this niche doesn't clear our bar today.

Market size 51Growth 25Conversion 26Competition 45Returns 49Price range 9Avg price 30Brand share 23Review moat 90Quality gap 17

**Review moat**

**Great****204.71**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Good****$287K**

$287K/yr · 45K searches

**Returns**

**Okay****3.1%**

return rate — above 5% kills the launch gate

**Competition**

**Okay****58%**

top-5 click share — leaders hold, buyers still browse

**Avg price**

**Okay****$307.91**

avg listing price — sweet spot $15–$100

**Conversion**

**Okay****2.1%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Okay****+0.3%**

90-day search growth — must beat 0% to launch

**Brand share**

**Bad****91%**

top-5 brand share — brand-locked demand

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Price range**

**Bad****$13.68–$919.17**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Trend