I've worked in a lot of modular buildings in recent years and have noticed a lot of these companies have switched from 18mm ply to this osb board. It looks horrendous nothing looks good about it and it's very weak, anyway a few companies I've done work for have started using uzin 888 to go straight on top of of this board. I've read into this product a little bit and it does say it is compatible but was wondering if any of you guys have an opinion on this??? Cheers.
Strange one because I've lifted a few carpet tiles which were stained n it pulled alot of the surface off it, that's just tacki never mind anything with a stronger adhesion. Is it just made like chip board with chunks of recycled wood squashed together?
I've done a lot of sports floor coverings & the sprung sub was always chipboard. We used a white pastey feather type stuff over the top sanded it then bonded lino or vinyl !
Osb is very strong and very good when it becomes wet. It very stable also. However, i have seen a massive dive in quality of late. The top layer seems a lot weaker than it used to be.
turn it over then..lol[/QUOTE] Very good point Mario, are you lot using it the right way up? are builders using it the right way up? It dont help that i have seen on many boards it says "this way down" and actually its the wrong way. However it is used more as a roofing product so maybe that is correct for a roofer? i dought it as they bond roofing felt to it and surely if they bond to the weaker side they are destinging to get bubbles in there roofing felt?
Yeah that's what caught my attention all I was doing was cleaning my trowel with a scraper n it came up in big splinters after it had a good sand, must be a cheaper grade they use and it always needs two coats to get a decent finish otherwise it looks like a 15yr olds face!
do you guys know that osb has formaldehyde in it although released very slowly and yes it's rough one side smooth on the other for a reason
Very slightly off topic (ish) but here's a decent article looking at potential problems nailing timber floors to OSB. Good info to know.. http://hardwoodfloorsmag.com/inspector/blog/default.aspx?id=112
So does plywood. For you lot that dont know what big word 'formaldehyde' is, well it is a commonly used chemical compound that exists in various pressed wood products (mostly as an adhesive resin) Formaldehyde forms at room temperature, is a colorless, distinctive and even pungent smelling, It is also flammable Please also note that formaldehyde is classed as "reasonably anticipated to be a human carcinogen". However, teh products (OSB, Plywood etc) that is supplied to the U.K and USA should contain low formaldehyde levels that easily meet emission standards and regulations DOES NOT MEAN THAT THEY DO MEET REGULATION GUIDELINES THO.
