MgO board
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 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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I would use fibefuse...and I have seen mold on durarock and glass...mold will grow anywhere
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?
We used MgO on a 27 unit commercial job for tile backer on both walls (1/2) and floors (1/4). First time using it and if would use it again.
It cut pretty well with a utility knife, easier than other tile backer products. 2 or 3 scores and it will snap right off. Small cut offs were a pain, though.
Although I don't remember the exact pricing, I think we were around 7-8 bucks a sheet. We got a pretty hefty discount buying in such a large quantity. We were only able to source MgO from one dealer locally. Not sure how it is in other areas, but availability may be an issue.
It cut pretty well with a utility knife, easier than other tile backer products. 2 or 3 scores and it will snap right off. Small cut offs were a pain, though.
Although I don't remember the exact pricing, I think we were around 7-8 bucks a sheet. We got a pretty hefty discount buying in such a large quantity. We were only able to source MgO from one dealer locally. Not sure how it is in other areas, but availability may be an issue.
A carbide cutter for cement board works better than a utility knife. A 4" grinder with a diamond or abrasive disc cuts fast.
We found that a 20ga steel stud would strip before a black drywall screw would counter sink, so we had to drill a dimple for the screw. Not an issue with wood studs.
The mud, OnePass, sets fast but does not need a second coat. Any gaps at the joints need to be completely full to prevent cracking.
We found that a 20ga steel stud would strip before a black drywall screw would counter sink, so we had to drill a dimple for the screw. Not an issue with wood studs.
The mud, OnePass, sets fast but does not need a second coat. Any gaps at the joints need to be completely full to prevent cracking.
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