# COMMERCIAL ROOFING MATERIALS AND MEMBRANE STATISTICS FOR 2026 REFERENCE

> Explore commercial roofing materials statistics for 2026, with EIA building counts, membrane survey findings and clear market-share definitions.

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Last updated: 2026-08-24

Commercial roofing material data, with building-stock shares, membrane survey results and the scope behind each number.

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Commercial roofing materials statistics describe different things depending on the source. A count of existing buildings answers which materials are already in service. A contractor survey describes the work respondents sell. Neither automatically measures the square footage installed across the country this year.

The distinction changes the answer to a common question. Metal surfacing was the largest category by building count in the [U.S. Energy Information Administration's 2018 CBECS Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf). Single-ply was the most widely offered category in [Roofing Contractor's original 2025 commercial survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/). Those findings can coexist because they count different populations.

This reference separates installed building stock, building floorspace and contractor responses. It keeps the observation year beside the number so an older national benchmark does not become a supposed 2026 measurement.

## Calculated Building Shares by Predominant Roof Material

Dividing material-group counts by the 5.918 million building total in [EIA's 2018 Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf) produces the following installed-stock shares.

| Predominant material | Calculated share of buildings |
| --- | --- |
| Metal surfacing | 37.1% |
| Asphalt, fiberglass or other shingles | 22.2% |
| Synthetic or rubber | 15.9% |
| Built-up | 12.0% |

Each percentage is the source's rounded building count divided by its rounded total, multiplied by 100. This is an analysis of public survey estimates, not a new field survey.

The table counts buildings, not roof area or current-year installations. The selected categories do not include every material. Their percentages should not be combined with contractor-survey responses, and a smaller building has the same weight as a larger one.

## Key Commercial Roofing Materials Statistics at a Glance

- Metal surfacing was the predominant roof material on an estimated 2.198 million commercial buildings in 2018, according to [EIA Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf).
- Asphalt, fiberglass or other shingles led the roof classification on 1.311 million buildings in 2018, according to [EIA Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf).
- Synthetic or rubber roofing was predominant on 940,000 buildings in 2018, according to [EIA Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf).
- Built-up roofing was predominant on 708,000 buildings in 2018, according to [EIA Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf).
- Buildings classified with synthetic or rubber roofs had an estimated 19,186 square feet of mean floorspace per floor in 2018, according to [EIA Table S1](https://www.eia.gov/consumption/commercial/data/2018/xls/S1%20Mean%20number%20of%20floors%20per%20building%20and%20floorspace%20per%20floor.xlsx).
- Single-ply systems were offered by 80% of commercial respondents in [Roofing Contractor's 2025 survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/).
- Low-slope asphalt systems were offered by 77% of commercial respondents in [Roofing Contractor's 2025 survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/).
- Metal systems were offered by 75% of commercial respondents in [Roofing Contractor's 2025 survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/).

## Which Roofing Material Is Most Common on US Commercial Buildings?

Metal surfacing led by building count with 2.198 million buildings as of 2018, in [EIA's CBECS Table B1](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b1.pdf).

That measure gives the same weight to a small commercial building and a large facility. It identifies the predominant covering for the building, rather than measuring every roof section separately. An owner with different systems over several additions needs a more detailed inventory than a national category can provide.

The term commercial has a defined survey meaning. [EIA's CBECS terminology](https://www.eia.gov/consumption/commercial/terminology.php) covers buildings used mainly for purposes outside residential, manufacturing or industrial, and agricultural activity. Offices, schools, warehouses and religious buildings fit the survey. A statistics page using these results should not silently extend the denominator to every factory roof or multifamily apartment building.

For an individual property, the useful starting point is its actual assembly. The [commercial roof systems guide](https://commercialroofingadvisors.com/commercial-roof-systems) sets out the owner questions that a material ranking cannot answer, including attachment, drainage, traffic and compatibility with the building's operations.

## How Large Are Buildings With Different Roof Materials?

The estimated mean floorspace per floor was 19,186 square feet for synthetic or rubber roofs, 16,476 for built-up roofs and 7,927 for metal roofs in 2018, according to [EIA Table S1](https://www.eia.gov/consumption/commercial/data/2018/xls/S1%20Mean%20number%20of%20floors%20per%20building%20and%20floorspace%20per%20floor.xlsx).

These figures describe a footprint proxy, rather than a measured roof surface. The roof-material groups contain buildings of different sizes and heights. Their averages should not become minimum project sizes or a claim that one membrane causes a building to have a larger footprint.

[EIA's footprint explanation](https://www.eia.gov/consumption/commercial/reports/2018/footprint/), released in September 2023 using 2018 data, explains the method. Dividing total floorspace by the number of floors approximates a footprint most closely for a single-story building or one with equal-sized floors. Setbacks, wings and floors of unequal size weaken the estimate.

The practical implication is straightforward. A material that appears on fewer buildings can still serve large roofs. Building counts alone cannot establish installed membrane area, replacement demand or annual material shipments.

Use measured plans or a roof survey for quantities. National averages provide context for an estimate, but they cannot substitute for the roof dimensions in a bid.

## How Many Commercial Contractors Offer Single-Ply, Asphalt and Metal?

Single-ply, low-slope asphalt and metal were offered by 80%, 77% and 75% of commercial respondents, respectively, in [Roofing Contractor's 2025 commercial survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/).

The choices overlap. A contractor can work with several systems, so the percentages do not form a pie chart. They describe product involvement among the firms answering the survey.

[Roofing Contractor's 2025 survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/) defined commercial respondents as contractors earning more than half their annual revenue from commercial work. It drew from the publication's subscribers and registered users, rather than a random census of every US contractor. That method makes the findings useful as an industry pulse, with limits on national generalization.

For a purchasing team, a contractor's product range is a different question from a system's fit. A firm that installs several membranes may offer more options, but the proposed assembly still needs a building-specific specification.

Document the products under review, the attachment method, insulation and cover board, drainage details, and warranty requirements before comparing bids. Otherwise, proposals carrying the same material label can describe different levels of work.

## What Do TPO, PVC and EPDM Survey Percentages Measure?

In the [2025 Roofing Contractor survey](https://digitaledition.roofingcontractor.com/december-2025/commercial-roofing-report/), 37% of commercial respondents identified TPO as their chief product category, followed by PVC at 28% and EPDM at 24%.

These are respondent-based answers. They do not establish that those percentages of all US roof area, annual membrane shipments or roofing revenue belong to those materials.

The underlying material groups matter, too. [EIA's roof-material definitions](https://www.eia.gov/consumption/commercial/terminology.php) combine plastic, rubber and synthetic sheeting rather than publishing a separate national installed-stock count for each membrane chemistry. Breaking that category into TPO, PVC and EPDM requires another dataset with its own coverage and method.

A facility manager can use the [TPO system guide](https://commercialroofingadvisors.com/commercial-roof-systems/tpo), [EPDM system guide](https://commercialroofingadvisors.com/commercial-roof-systems/epdm) and [PVC system guide](https://commercialroofingadvisors.com/commercial-roof-systems/pvc) to compare the assemblies. The statistical rank belongs beside that review, rather than replacing it.

Before repeating a market-share claim, ask what the publisher counted. The answer should identify country, year, roof segment and unit. A global revenue share is a poor substitute for US low-slope installed square footage.

## How Does Roof Shape Affect the Material Context?

Flat roofs were reported on an estimated 1.914 million commercial buildings, shallow-pitch roofs on 2.313 million and steeper-pitch roofs on 1.691 million in 2018, according to [EIA Table B10](https://www.eia.gov/consumption/commercial/data/2018/bc/pdf/b10.pdf).

Commercial does not mean flat. The survey includes many smaller pitched-roof properties alongside large low-slope facilities. A material comparison intended for warehouses should not borrow the denominator from every commercial building without explaining the difference.

Roof geometry is a useful first filter for an owner's comparison. It directs attention to compatible assemblies and details before a discussion of product popularity. Existing drainage, penetrations, substrate condition and future rooftop work then narrow the options.

The categories are survey classifications. They are not a project-specific slope measurement or proof that a particular product can be installed on a given roof. That decision belongs in the scope and design review.

## How to Read Commercial Roofing Market-Share Claims

Keep the denominator attached to the number. A sound comparison uses the same geography, observation period, building population and unit on both sides.

A building-stock measure describes assets already in place. Shipment measures describe material leaving manufacturers. Contractor revenue measures describe dollars, which can change with price and project mix. Respondent percentages describe the sample answering a question.

Those measures can move in different directions without contradicting each other. They cannot be substituted in a chart simply because each is labeled market share.

For owners comparing systems, request the source table behind a percentage. Check whether it includes residential roofs, industrial facilities, coatings or accessories. Check whether a forecast has been presented as a completed year's result. Keep categories broad when the evidence does not support a more detailed split.

This approach makes the page useful to journalists and property teams. A scoped number can be quoted and checked. A larger-looking figure with an unclear denominator cannot support a reliable decision.

## Put the Material Statistics Into a Roof Plan

Commercial Roofing Advisors helps owners connect material choices with documented condition and a defined scope of work. A [commercial roof evaluation](https://commercialroofingadvisors.com/services/roof-evaluations) can establish the assembly and its condition before the team commits to repair, restoration or replacement.

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