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David G. Axt, CCS, CSI ,SCIP
Senior Member
Username: david_axt

Post Number: 1910
Registered: 03-2002


Posted on Wednesday, April 13, 2022 - 08:36 pm:   Edit PostDelete PostPrint Post

I am looking for a gypsum board product that has 2 inches of insulation stuck to it. I thought for sure that this product exists but cannot find it.

We are using this to wrap an elevator core inside a parking garage.
David G. Axt, CCS, CSI, SCIP
Specifications Consultant
Axt Consulting LLC
Ronald L. Geren, FCSI Lifetime Member, AIA, CCS, CCCA, CSC, SCIP
Senior Member
Username: specman

Post Number: 1606
Registered: 03-2003


Posted on Wednesday, April 13, 2022 - 09:10 pm:   Edit PostDelete PostPrint Post

What type of insulation? I think you can get a polyiso roof insulation board with a glass-mat gypsum facer. Not really the proper product for your situation.

I do not recall any interior products with a Type X gypsum board facer on an insulation board.

I assume the wall is rated (shaft enclosure for an elevator hoistway). I do not think there are any tested assemblies that use gypsum-faced insulation boards as a part of a shaft wall.
Ron Geren, FCSI Lifetime Member, AIA, CCS, CCCA, CSC, SCIP
ken hercenberg
Senior Member
Username: khercenberg

Post Number: 1449
Registered: 12-2006


Posted on Wednesday, April 13, 2022 - 09:46 pm:   Edit PostDelete PostPrint Post

Sounds like ArmorWall except it's magnesium oxide, not gypsum board.
https://maxlifeindustries.com/

Great product.
George A. Everding, FCSI, CCS, CCCA, AIA
Senior Member
Username: geverding

Post Number: 932
Registered: 11-2004


Posted on Friday, April 15, 2022 - 11:00 am:   Edit PostDelete PostPrint Post

Looks like ArmorWall meets NFPA 285 for exterior wall assembly but that wouldn't apply to elevator shaft separation. ASTM E119 needed for wall rating, which I don't think any MgO panel assemblies meet. (It's been a while since I looked at this so I don't know if there are new developments with MgO)
David G. Axt, CCS, CSI ,SCIP
Senior Member
Username: david_axt

Post Number: 1911
Registered: 03-2002


Posted on Friday, April 15, 2022 - 12:04 pm:   Edit PostDelete PostPrint Post

Let me clarify by saying that the elevator/lobby/stair shaft is cast-in-place concrete. We just need to wrap it for energy concerns.
David G. Axt, CCS, CSI, SCIP
Specifications Consultant
Axt Consulting LLC
ken hercenberg
Senior Member
Username: khercenberg

Post Number: 1451
Registered: 12-2006


Posted on Saturday, April 16, 2022 - 12:03 am:   Edit PostDelete PostPrint Post

https://maxlifeindustries.com/armorwall-sp-plus/
2 hour rated
George A. Everding, FCSI, CCS, CCCA, AIA
Senior Member
Username: geverding

Post Number: 933
Registered: 11-2004


Posted on Saturday, April 16, 2022 - 03:56 pm:   Edit PostDelete PostPrint Post

Thanks, Ken.
David G. Axt, CCS, CSI ,SCIP
Senior Member
Username: david_axt

Post Number: 1914
Registered: 03-2002


Posted on Monday, April 18, 2022 - 11:11 am:   Edit PostDelete PostPrint Post

Thank you Ken. I have passed this information on to my architectural client.
David G. Axt, CCS, CSI, SCIP
Specifications Consultant
Axt Consulting LLC
Steven Cheng (Unregistered Guest)
Unregistered guest
Posted on Monday, June 27, 2022 - 11:12 am:   Edit PostDelete PostPrint Post

Please do your research before considering exterior facing magnesium oxide-based products

https://iopscience.iop.org/article/10.1088/1755-1315/90/1/012103/pdf

https://buildingadvisor.com/magnesium-oxide-wallboard-sheathing/
ken hercenberg
Senior Member
Username: khercenberg

Post Number: 1477
Registered: 12-2006


Posted on Monday, June 27, 2022 - 12:24 pm:   Edit PostDelete PostPrint Post

As I recall, Armorwall (now owned by DuPont - https://www.dupont.com/products/armorwall-plus.html) comes with an air barrier applied to the magnesium oxide substrate and can be supplied with or without insulation. It's made in North Carolina and is presumably not the same product mentioned in these other articles.

Still, I'll leave it to DuPont to respond. I have used the product successfully on several projects and have not heard of any issues or problems with it.
Brian Payne
Senior Member
Username: brian_payne

Post Number: 271
Registered: 01-2014
Posted on Monday, June 27, 2022 - 12:48 pm:   Edit PostDelete PostPrint Post

Warning: Not everything you read on the internet is helpful. I had a huge Armorwall project get switched to MW (which I also like, I just don’t like rework) because someone googled MgO and found a bunch of articles on these older imported boards and then generalized it to Maxlife/DuPont product. They are different. DuPont definitely did their homework before buying Maxlife.

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