In this post, The Panel Man is traveling back in time to the basements of yesteryear…
First stop, the “groovy” wood paneling popular in the 1960s. I remember helping my father attach unsightly 4’x8’ panels to concrete blocks (no insulation); five years later the wood rotted thanks to moisture. Some can make peace with wood paneling, I can’t!
Fast forward to the 1980’s: Everyone wanted a slick, finished look and went for sheet rock or gypsum board. Even when sandwiched between water resistant laminates, the core rots with any water exposure. I learned this the hard way when putting a basement shower in using Green Board gypsum panels in the bathroom. (Note: gypsum [di-hydrous calcium sulfate] is actually 21% water by weight!)
In the nineties, contractors thought vinyl wallpaper or fabric over fiberglass was pretty “rad.” Downsides were mold growing in the fiberglass, tough-to-clean surfaces, and lack of durability (anyone with kids understands this).
Why the trip back in time? To compare these basement paneling solutions to today’s better option: MgO (magnesium oxide) sheathing. I wrote about MgO in my first post as a viable SIPs component in building. Now, I’m on my MgO soapbox again because I think it’s a great option for basement paneling. Here’s why:
- MgO is naturally mold- and water-resistant (it’s used in hurricane-prone areas)
- It’s exceptionally strong – it’s even used for commercial countertops! It’s impact resistant, too, which matters to anyone who’s poked a hole in drywall
- MgO board is safe and “green” – it contains no organic solvents, heavy metals, asbestos, oils or other toxic ingredient
- Magnesium oxide boards are fire proof (can’t say the same for wood panels, that’s for sure)
- As for aesthetic concerns, you can hang pictures on MgO panel without having to find studs and it’s easy to paint
If I were a contractor looking for an innovative basement material, I’d consider an MgO SIPs panel bonded on both sides to 2” EPS foam. With 2” insulation, you do the numbers on the “R” value!
I like everything I have seen with magnesium oxide boards for basement application. So why hasn’t it taken off? Owens Corning has their own “Basement Finishing System” and Champion has one as well; but neither use MgO board. I pulled up some other companies, mostly regional that have similar systems: All use vinyl-covered panels. I could only find one laminator on the East Coast that is actually promoting MgO panels as part of their basement finishing system. I forgot to mention that there are also companies actually laminating concrete panels for the same application…heaaavy! Also, it must be murder on the CNC sawing equipment in the plant.
Anyways, I think eventually you will see MgO board SIPs everywhere. In the meantime, is anyone out there on the same wavelength with me? If we can embrace new materials and change our thought process, we won’t stay stuck in a 1960s wood-paneled basement (oh, the horror!).