Skip to content

Roof Underlayment

Fail

Buyers convert on only 1.1% of searches, so Roof Underlayment is a Fail.

Flapen Score
42
42 / 100
Ranks 6,968 of 9,536 Tools & Home Improvement niches · −6 vs the category median of 48
Market size
$59K/yr66K searches / yr
90-day growth
+22.5%search demand this quarter
Competition
62%top-5 click share · 18 brands · 51 sellers

Flapen Score

Roof Underlayment against its category

The dotted line is the Tools & Home Improvement average. Past it, Roof Underlayment is stronger. Inside it, weaker.

42Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Roof Underlayment market on Amazon at a glance

Shoppers on Amazon United States searched for Roof Underlayment 66K times last year and spent an estimated $59K. The top 5 brands take 66% of clicks. Flapen scores it 42 out of 100, a Fail.

01 · Demand

1.1% of searches ended in a purchase last week.

Shoppers searched for this 66K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 1.1% of those searches ended in a purchase. Searches in the last 90 days moved +22.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $59K a year.

Searches, last 12 months
66K
Growth, 90 days vs prior 90
+22.5%
Conversion, latest week
1.1%
Market size, estimated
$59Ka year
Peak month
October1.7× the quietest month
Top search term
roof underlayment11K searches a year

02 · Price

A sale here is worth $78.30.

Listings sell for $78.30 on average, from $8.32 to $186.16. Amazon reports units sold in ranges. This niche sold 1K to 1K a year. The average listing sells 0 to 100 of them. At $78.30 that is $0 to $8K a year per listing.

Average price
$78.30inside the $15 to $100 sweet spot
Price range
$8.32–$186.16
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
1K–1K
Units per listing a year
0–100
Revenue per listing a year
$0–$8K
Returns
5.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

68% of listings pay for placement with sponsored ads. 59% ship with Prime. On an average day, 9.3% of listings are out of stock. The average listing ranks #1,254 within Flooring. It carries 90 reviews at 4.47 stars, so a new listing needs social proof before a better product.

Sponsored listings
68%
Prime listings
59%
Out of stock, average day
9.3%
Average rank
#1,254in Flooring
Average rating
4.47 starsAmazon United States average 4.42 stars
Average reviews
90per listing
Listings tracked
22

04 · Newcomers

Amazon counts 0 of last year's 1 launches as successful.

1 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 60 months on average, so the names here are established.

Launched, last 12 months
1
Successful launches
0Amazon's first-year sales bar
Average brand age
60 months

Products

Top Roof Underlayment products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 62% of clicks. Leaders hold, but buyers still shop past them.

$0$6K$12K$18K$24K1101001K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

Brands

18 flat

Sellers

51

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

62%

Top 20: 98%

Open market

28%

  • Grip-Rite24%
  • SIPA12%
  • ADFORS11%
  • BXI9%
  • ROBERTS9%
  • American Saturated Felt7%

Demand

Roof Underlayment search demand

Weekly searches over the year, seasonality beneath. Pick a range.

2K1KSpike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Search terms

Top Roof Underlayment search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • roof underlayment11K/yr
  • roofing paper11K/yr
  • roofing felt11K/yr
  • roofing underlayment9K/yr
  • tar paper for roof8K/yr
  • synthetic roofing underlayment3K/yr
  • synthetic roof underlayment3K/yr
  • roof felt3K/yr
  • roofing tar paper3K/yr
  • roof underlayment waterproof4K/yr

Reviews and returns

What reviews say buyers love and hate about Roof Underlayment

We read the reviews and the return reasons for every product selling here.

22%of positive reviews mention “Quality-Overall”
17%of negative reviews mention “Adhesion/Stickiness”
5.0%of orders come back
“Zero Stickiness, Unusable”
A buyer, on “Adhesion/Stickiness”17% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

18 topics

NegativePositive

FAQ

Common Roof Underlayment questions

Answered from the same tracked data.