OT Plywood question

[woodman]

I think I should picture this stuff but haven't linked my phone to the forum. Could probably use some tips and tricks cause besides building new stuff I never dealt with old rot that I had to fix.

Ahhh! I forgot to mention the rot thing, this place was infested with carpenter ants big time, especially where I am working. Nothing helped until I fogged behind boards and stuff on the outside with regular mosquito stuff. Poof they disappeared in 2 days, not a single ant since and been like 5 years.

Those damn carpenter ants can really do some damage. They got into a pile of plywood that I had stacked outside under plastic and really went to town on it. I had a bunch of hardwood stored in a neat stack outside for a few years and the post hole beetles got into it big time. You just can't store stuff outside, it will go to hell.

[woodman]

I don’t see recently manufactured (in past 15 years or so) OSB swelling and sagging like the OSB board manufactured 30+ years ago. Virtually all construction around here now with few exceptions uses OSB board instead of plywood including the most expensive custom homes. Regardless whether OSB or plywood both are going to rot when exposed to prolonged moisture. Based on what I see OSB and plywood perform essentially the same under identical circumstances.

Still not a huge fan of OSB but it’s now more or less equivalent to the lower quality plywood.

I wonder if they are still using popple/poplar in OSB. Popple rots fast when wet. It is actually nice wood, just not for a wet location.

[Cebu_4_2]

I wonder if they are still using popple/poplar in OSB. Popple rots fast when wet. It is actually nice wood, just not for a wet location.

Did a bunch of research on this. Current home is mostly OSB on top of 1/2 plywood. The OSB is exposed with no carpet or cover, I'm a low life with no money. The OSB from.. let me look at the stamp on it... Dated Jan 2008. This stuff is great for exposed flooring. The living room and kitchen area were particle board. Kitchen doesn't work well with the particle board shit which is the issue especially since the back door to the deck was open for many years. Water, particle board and ants love the environment. Just trying to redo the kitchen rot area and top it with OSB. The OSBI chose is rated at least 300 days exposed so that seems to be pretty good to me. Considering brand new plywood gets delivered already delaminated. Idonno guys, working with my gut and no experience on this one. I tried to link my phone so hopefully you have something to look at tomorrow.

[woodman]

Did a bunch of research on this. Current home is mostly OSB on top of 1/2 plywood. The OSB is exposed with no carpet or cover, I'm a low life with no money. The OSB from.. let me look at the stamp on it... Dated Jan 2008. This stuff is great for exposed flooring. The living room and kitchen area were particle board. Kitchen doesn't work well with the particle board shit which is the issue especially since the back door to the deck was open for many years. Water, particle board and ants love the environment. Just trying to redo the kitchen rot area and top it with OSB. The OSBI chose is rated at least 300 days exposed so that seems to be pretty good to me. Considering brand new plywood gets delivered already delaminated. Idonno guys, working with my gut and no experience on this one. I tried to link my phone so hopefully you have something to look at tomorrow.

No worries my friend. You can use the OSB just as long as you seal it well. I trowel filled and sanded the OSB in my shop/man cave upstairs and used a quality paint on it. I painted a large diamond pattern that looks just like tile and with a little polyurethane over it, does an outstanding job. It has stood up to many beer spills and still looks great. I imagine that you would not even have to sand or fill it, just as long as you seal it well. Depends on how picky you are for looks.

[Cebu_4_2]

No worries my friend. You can use the OSB just as long as you seal it well. I trowel filled and sanded the OSB in my shop/man cave upstairs and used a quality paint on it. I painted a large diamond pattern that looks just like tile and with a little polyurethane over it, does an outstanding job. It has stood up to many beer spills and still looks great. I imagine that you would not even have to sand or fill it, just as long as you seal it well. Depends on how picky you are for looks.

Goal is fake flooring But 2400 feet is not possible now. Hope 1/4 that will suffice.

[ziero0]

You can use the OSB just as long as you seal it well.

WWI (phase deuce) PT boats were made of plywood. Wonder what the equivalent made of OSB would look like.

[woodman]

WWI (phase deuce) PT boats were made of plywood. Wonder what the equivalent made of OSB would look like.

I remember reading about an enormous marine plane developed by Howard Hughes that was made of plywood; The H-4 Hecules, also known as the Spruce Goose. I guess with the proper resin/binder, anything is possible.

[woodman]

WWI (phase deuce) PT boats were made of plywood. Wonder what the equivalent made of OSB would look like.

OSB (Oriented Strand Board) is perhaps in its infancy. Think of the possibilities that would come about with newer technologies. If you could actually weave the wood together, like in some of those resin covered salad bowls, the strength would be amazing.

[ziero0]

I remember reading about an enormous marine plane developed by Howard Hughes that was made of plywood

Perhaps when NASA selects OSB for their next space shuttle?

[hoarder]

OSB relies on compression of the fibers to form it's shape. Compressed wood is more likely to expand when wet. Plywood is compressed too, mainly to bond the glues, but not much beyond it's original dimension.