MgO board

8739 Views 5 Replies 4 Participants Last post by bkvanbek, Feb 1, 2014

bkvanbek

Discussion Starter · Jan 31, 2014

Has anyone used MgO board? I used it on my new house, Magnum Board is the brand I used. The reasons I used it are; No paper so it won't mold, much much stronger, two layers of fiberglass. Half inch and you can stand on the back side when on trusses 2' oc.

I always hated gypsum; weak, heavy and falls apart and molds if it gets wet.

It is tougher to cut, of course it is much stronger, I wouldn't use paper tape or water soluable mud as that would defeat the purpose of mold resistant. Magnum Board recommends fiberglass tape and Rapid Set One Pass.

I distribute BuildBlock ICFs and may want to sell Magnum Board, interested in opinions.

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icerock drywall

· #2 · Jan 31, 2014

bkvanbek said:
Has anyone used MgO board? I used it on my new house, Magnum Board is the brand I used. The reasons I used it are; No paper so it won't mold, much much stronger, two layers of fiberglass. Half inch and you can stand on the back side when on trusses 2' oc.

I always hated gypsum; weak, heavy and falls apart and molds if it gets wet.

It is tougher to cut, of course it is much stronger, I wouldn't use paper tape or water soluable mud as that would defeat the purpose of mold resistant. Magnum Board recommends fiberglass tape and Rapid Set One Pass.

I distribute BuildBlock ICFs and may want to sell Magnum Board, interested in opinions.

I would use fibefuse...and I have seen mold on durarock and glass...mold will grow anywhere

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icerock drywall

· #4 · Jan 31, 2014

Ancient Rocker said:
I did a little research and it sounds promising. Can you really cut 1/2" with a utility knife blade? What is the approximate cost per sheet? How heavy is it? Did your hangers or tapers give you any feedback? I would love to learn more from you rather than the manufacturer.

I like what you said... I have done skim coating to durabond and on the first job I got hair line cracks like a plaster job. so I had to use 36'' rolls of fiberfuse to fix it ...so will this also make hairline cracks because there in no paper on the face?

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