Gypsum / insulation board?

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Author Message 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:    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:    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:    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:    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:    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:    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:    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:    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:    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:    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:    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.