Manufacturing

CertainTeed Corporation Valley Forge Plant

CertainTeed Corporation Valley Forge Plant CertainTeed Corporation's Valley Forge operations manufactured asbestos cement pipe, roofing, and siding products under the Transite and other brand names. CertainTeed was one of the largest producers of asbestos cement products in the United States.

Last verified: 2026-03-09

Legal & editorial

Written by Paul Danziger, J.D. · Edited by Rod De Llano, J.D. · Legally reviewed by Michelle Whitman (affiliated firm)

Editorial Policy & Advisory Board

Location: Valley Forge, PA
Industry: Building Materials Manufacturing
Exposure Era: 1930s–1980s
Primary Asbestos Products: Asbestos cement pipe, Asbestos roofing shingles, Asbestos siding, Asbestos cement board, Transite products
Job Categories at Risk: Pipe production workers, Machine operators, Mixing operators, Cutting operators, Maintenance workers

History & Asbestos Use

CertainTeed Corporation, a subsidiary of Saint-Gobain, has been headquartered in the Valley Forge, Pennsylvania area and operated manufacturing facilities producing building materials including asbestos cement pipe (Transite), roofing shingles, and siding products. Transite asbestos cement pipe was one of the most widely installed water and sewer pipe products in the United States, with thousands of miles still in use today. CertainTeed faced extensive asbestos litigation from workers who manufactured and installed its asbestos-containing products and has been a defendant in numerous asbestos personal injury cases.

Exposure Details

Workers at CertainTeed facilities were exposed to asbestos during the mixing of raw asbestos with cement, the forming and curing of pipe and sheet products, and especially during cutting operations on finished products. Cutting Transite pipe and sheet generated heavy clouds of asbestos-laden dust. Plumbers, pipefitters, and construction workers who cut and installed Transite products in the field were also extensively exposed to asbestos fibers throughout their careers.

Workers at Risk

The following job categories at CertainTeed Corporation Valley Forge Plant had the highest risk of asbestos exposure:

Pipe production workers
Machine operators
Mixing operators
Cutting operators
Maintenance workers

Health Effects

Former CertainTeed manufacturing workers and the vast number of tradespeople who installed Transite and other CertainTeed asbestos products have developed mesothelioma, asbestosis, and lung cancer. Plumbers and utility workers who cut Transite pipe on the job were at particularly high risk. Homeowners who drilled into or cut CertainTeed asbestos siding and roofing during renovations also faced potential exposure.

Health information is based on established medical research on asbestos exposure. Asbestos is classified as a known human carcinogen by the National Cancer Institute, the Agency for Toxic Substances and Disease Registry, and the U.S. Environmental Protection Agency. Consult a physician for medical advice specific to your situation.

Compensation May Be Available

Workers exposed to asbestos at CertainTeed Corporation Valley Forge Plant may be entitled to compensation through asbestos trust funds, personal injury lawsuits, or veterans benefits. Mesothelioma patients and their families have recovered billions in compensation from companies that manufactured or used asbestos products.

Find Out If You Qualify

Were You Exposed to Asbestos at CertainTeed Corporation Valley Forge Plant?

Workers who were employed at CertainTeed Corporation Valley Forge Plant between 1930s–1980s may have been exposed to asbestos-containing materials. If you've been diagnosed with mesothelioma, lung cancer, or asbestosis, you may have legal options including trust fund claims and lawsuits.

Speak with an Attorney — Free Request a Free Case Evaluation

Treatment Centers in Pennsylvania

If you were exposed to asbestos at CertainTeed Corporation Valley Forge Plant and have been diagnosed with mesothelioma, these specialized treatment centers in Pennsylvania may be able to help.

Penn Medicine (Abramson Cancer Center)

Philadelphia, PA

Comprehensive Cancer Center

View Full Profile

UPMC Hillman Cancer Center

Pittsburgh, PA

Comprehensive Cancer Center

View Full Profile

Browse all treatment centers →

Frequently Asked Questions

What is Transite pipe?

Transite is a brand name for asbestos cement pipe manufactured by CertainTeed. It was widely used for water mains, sewer lines, and drainage systems from the 1930s through the 1980s, and thousands of miles remain in use in municipal water systems today.

Who was exposed to asbestos from CertainTeed products?

Both factory workers who manufactured the products and the plumbers, pipefitters, roofers, and construction workers who cut and installed CertainTeed asbestos cement pipe, roofing, and siding were exposed to asbestos fibers.

Is CertainTeed asbestos siding still on homes?

Yes, many older homes still have CertainTeed asbestos cement siding and roofing installed. These materials are generally not hazardous if left undisturbed but can release asbestos fibers if cut, drilled, broken, or improperly removed during renovation work.

I worked here but I have no employment records. Does that end it?

No. Missing paperwork is normal after this long, and it is not what decides a claim. A Social Security earnings statement lists every employer you had, by year, and can usually be requested directly. Union records, W-2s and a DD-214 for military service do similar work. Coworkers who were there can also confirm conditions. What matters most is what you remember, written down in your own words.

My father or husband worked here and has since died. Can the family still file?

Yes. A wrongful death claim can be brought by the estate or eligible family members, and it is a separate route from a claim the patient would have brought themselves. It also runs on a different clock: the deadline generally starts at the date of death rather than the date of diagnosis, which means families are sometimes still in time when they assume they are not. Deadlines are set by each state, so confirm the one that applies to yours.

I never worked here, but a family member did. Could I have been exposed?

Possibly. Asbestos fibres travelled home on work clothes, in hair and in vehicles, and household members were exposed while washing laundry or greeting someone at the end of a shift. This is called secondhand or take-home exposure and it is a recognised route to a claim in its own right, not an exception. If you are documenting a family member's work history, write down your own contact with their work clothing as well.

Did you work at CertainTeed Corporation Valley Forge Plant? Write this down now

You do not need a lawyer, a diagnosis, or a decision to do this. You need a piece of paper. Memory is the part of a claim nobody else can reconstruct for you, and it is the part that fades.

The years you worked there — approximate is fine, and a range is fine
Your trade or job title, and what you actually did day to day
Which building, unit, ship or area you spent your time in
Who else was there — names of crew, foremen, or anyone who could confirm it later
Anything you remember about the materials — write what you recall on your own, before looking anything up. Details you remember unprompted are the ones that hold up years later when you are asked under oath. Details you read on a website do not.

If you are doing this for a relative who has died, write down what you remember too, including work clothes brought home to be washed. Household exposure is a real claim, not an edge case.

Worked at CertainTeed Corporation Valley Forge Plant? Tell us the years and your trade

That is usually enough to work out which claims are open to you — trust funds, a lawsuit, or VA benefits if the exposure happened in service. You do not need records, dates you are certain of, or the name of a product. If you are asking on behalf of someone who has died, a family member can file and the deadline runs differently. No cost, no obligation, and no pressure to decide anything today.

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Sources:

OSHA compliance records — accessed 2026-03-09
Pennsylvania DEP records — accessed 2026-03-09
Product liability litigation documents — accessed 2026-03-09
Municipal water system records — accessed 2026-03-09

← All Exposure Sites in Pennsylvania ← All Exposure Sites