That's what I figured. I remember working with the stuff in the late
80s and early 90s and it was pretty nasty. The OSB that's out now is
much different. It's still OSB, so it is what it is. But I've found it
to be much improved over the stuff from 25 years ago.
If you ever run across Advantech or Norbord Truflor, check them out.
They are very advanced OSB subflooring sheets and are great to work with
and strong as an ox. Also, they are very water resistant.
"Playing is not something I do at night, it's my function in life"
So for flooring the companies that make the mortar, or glues do not
recommend OSB under any tile, or stone. There has to be a reason.
But I would probably agree that the product has changed, but that
doesn't help my problem of it being CRAP. It won't even hold a screw, it
just flakes away... garbage. Have you been following the AZEK suits.
The product is quickly failing in many locations.. yes there are many
sucesses too. The problem is where it is failing. The company says we
don't guarantee the look, but the product is cracking, chalking, etc...
why would you buy a product that in less than a year is failing.
Same with the OLD OSB.. it's crap.. that I will pay 4 times for. I have
already started replacing sheathing. I have aluminum siding. So I have
to replace sheathing, wrap, siding... And who's to pay.. I don't have
that problem with PLY. Are the manufacturers going to pay... hell no.
They sell it and walk away...
Yes, but they put it under slate in the entry way. So it's all cracking.
I already partially repaired it once b4, it's still continuing, so at
some time I will lift and replace the whole area and figure what we'll
put down after. If tile or stone I'll use cement board.. but I am about
to do my kitchen floor, removing the subfloor and putting cement board
The wife does not want to upgrade the kitchen, only the floor, which I
think is a mistake... might as well do it all, but SWMBO rules... a
Yea, my house had an area w/o a ply sister-ed in... I had to cut the
pipe, reinforce the joist, then use a coupler to join the waste pipe
back in.. I think my builders got their license from the cracker jack box...
If you were to in any way compare OSB and Advantec (engineered subfloor
composite board) I would argue most strenuously. They are not the same
product. Not even close. In the first place, OSB is made cheaply to cover
large areas economically, where strength is not key. The engineered
subfloor is very strong, and used because it does not suffer from
delaminating and voids as modern plywood seems to suffer. It is also quite
expensive, in comparison to OSB.
Advantec is still not to be used under tile because no wood is rated for
direct contact with masonry unless is is treated, and Advantec is not. Wood
also does not have the same coefficients of expansion as tile, and therefore
is not a good choice of material for bonding to masonry. Advantec, however,
shows very little signs of swelling or coming apart in flakes when exposed
to the weather, even for long periods of time. I have seen it weather for
nearly a year with very little changes other than discoloration.
No, you are entirely correct they are not the same product.
That said, Advantech is indeed technically an "oriented strand board"
(OSB) product in the way it is manufactured, just like both are
But what a difference ... ;)
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.