If you board your walls using MagO magnesium oxide board you can benefit by reducing many of the fussy requirements (of gypsum)
Peter Francis writes to us about the inherent stiffness and strength of MagO (magnesium oxide) boards, in place of gypsum. Let us know if you've used MagO boards - and how you and your client(s) liked the experience.
By Steve Payne
John Bleasby blogged on Wednesday about the time it took him and his carpenter to plan backing boards behind all the drywall areas where there were going to be heavy fixtures attached in his new home build.
Peter Francis from MagO building products, posted this comment about his firm’s products.
It’s basically an advertisement for MagO (we received no money for it – if we had, we’d mark it as a paid spot – and you’re doing your job well, Peter) but it’s still worth reading.
“There is an alternative. If you board your walls using MagO magnesium oxide board you can benefit by reducing many of these fussy requirements. This is due to the inherent stiffness and strength of MagO board. If you use 12mm board and wish to hang something you do not need to find backing or use plugs, one #8 screw into 12mm MagO will support 200 lbs in shear and most of that in tension.
MagO board joints do not need to be over a stud. MagO corners do not require corner bead. In addition every wall in effect has a one hour fire separation. (UL W-490);
the board is impervious to water, you can hose it down, if necessary power wash it
MagO is actively anti microbial, mold cannot grow on it due to the magnesium chloride (salt) content . It’s easier and faster to paint; it’s possible to paint the same day as boarding and get a level 5 finish.
It’s easier and safer to work with; there are no VOCs, carcinogens or toxins of any sort. Magnesium oxide and magnesium chloride are both used as health supplements.
It’s not too expensive, with the labor savings that accrue from not having to be so fussy with prep. That – and faster finishing times – makes the installed MagO close to the cost of installed regular gypsum and perhaps cheaper than specialty flavors.
MagO is cut with carbide saws or score and snap. Using saws just makes for a cleaner better job with less or no requirement for tape and mud joints. Use a nail gun or any self counterboring screw, fast to attach. Use thinner lighter panels, 10mm is fine for most walls and 6 or 8mm for ceilings.
MagO is so strong that you could actually mount boxes for switches and receptables direct to the board and not to the stud (although this may contravene code).
At the end of your job, the scrap pieces of MagO can go to any landfill or, when crushed, it can be used as a soil amender as plants need magnesium to photosynthesize.
This is an evolution in construction, a brand new type of cement fiber board that has been around for 2,000 years in one form or another.”