Asbestos Content in Canadian GLA Drywall
Canada Gypsum Lime & Alabastine Limited Gyproc

GLA: Canada Gypsum Lime & Alabastine Limited Gyproc Fireproof Wallboard

Drywall systems that may contain asbestos - at least in finishes, taping joint compounds, skim coats, or in systems that applied plaster over gypsum board date from about 1910 through the early 1980's in North America (1982 in Canada).

Taping drywall joints dates from as early as the 1920's. Asbestos-use in plaster overlaps this period.

In Canada most provinces classify the asbestos hazard associated with drywall removal as a "low risk or type 1" hazard requiring normal dust control. (Pinchin 2011).

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On 2017-11-26 by (mod) - GLA - Gypsum Lime and Alabastine Corp.

Use of asbestos in Canada Gypsum and Alabastine Limited Gyproc Fireproof Wallboard

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Can you give me a clue such as the country in which you think the product was used?

GLA Alabastine is not a fiberboard product, it is a gypsum board material.

GLA's Gyproc was described as fireproof wallboard, but the description makes no mention of asbestos.

The producing company GLA Canada Limited, who described their product as Gyproc Sheathing, is identified as

• Gypsum, Lime & Alabastine Canada, Limited, 50 Maitland St., Toronto, Ontario, Canada, with facilities in Vancouver, Calgary, Winnipeg, Toronto, Montreal Canada
  

Gypsum, Lime and Alabastine Canada Limited was incorporated in Canada in 1927. Gypsum, Lime and Alabastine Canada Limited changed its name to Kamic Ltd. in 1959 and it was acquired by Domtar Limited, 1959 In 1977, Domtar Limited’s name changed to Domtar Inc.

The company's industry is described as a gypsum product manufacturer operating gypsum mines and operating in the lime industry.

Domtar's current website: https://www.domtar.com/en

In ASBESTOS PRODUCING COMPANIES & TRUSTS we find this information about Domtar - note that this is Domtar, Not GLA Canada:

On 2017-11-21 by Kim - Did a company called GLA (gypsum lime and alabasline) use asbestos?

Did a company called GLA (gypsum lime and alabasline) use asbestos in their gyproc?

If so was there a lot in it?

This Q&A were posted originally at SHEATHING, FIBERBOARD ASBESTOS CONTENT but are moved here since GLA gyproc is not a fiberboard material.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

On 2021-11-22 by Geoff

@Inspectapedia Com Moderator, thank you.yes i am having it tested next week and will keep you informed.

On 2021-11-21 by Inspectapedia Com Moderator - Gyproc fireproof wallboard but no mention of asbestos

@Geoff,

As we noted to another reader above,

GLA's Gyproc was described as fireproof wallboard, but the description makes no mention of asbestos.

So if you have to perform demolition, and considering that both the gypsum board and plaster or drywall mix that may be on the room side of the wall *could* contain asbestos, I'd suggest having representative samples tested. If you do that please be sure to share your report & results with us as that will sure help other Canadian readers whose buildings use Gyproc Lath board.

On 2021-11-21 by Geoff

hello I was wondering about asbestos content in this gyproc.

...

On 2021-01-09 by danjoefriedman (mod)

Hi Rick; I regret that the reader has not posted a follow-up with test results;

If you decide to test your gypsum board be sure that your test includes a section that also represents the joint compound as that, too, may contain asbestos.

On 2021-01-09 by Rick

I have the same Sheetrock as pictured in the thread. It is fireproof gypsum wallboard. TM registered in Canada. Patented 1959 1962. The reader was going to test it and post results. I’m wondering what the results were.

...

Continue reading  at ASBESTOS-DRYWALL REMEDIATION / REMOVAL or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

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