Hello, I recently moved to a residence where there is a garage. I've sorted most of the interior now except for small details here and there. Now the garage is the next big project.
The problem is that there is only drywall on the walls with holes here and there and a lot of graffiti. My question is; can I simply put OSB boards over the drywall and then paint to later add shelves, storage, furnishings, etc.? The durability shouldn't be affected, but I'm wondering about fire classification and so on. Soundproofing would be negatively impacted, but it shouldn't be too bad with shelves and various cabinets that dampen the sound, right? Grateful for tips and thoughts!
The problem is that there is only drywall on the walls with holes here and there and a lot of graffiti. My question is; can I simply put OSB boards over the drywall and then paint to later add shelves, storage, furnishings, etc.? The durability shouldn't be affected, but I'm wondering about fire classification and so on. Soundproofing would be negatively impacted, but it shouldn't be too bad with shelves and various cabinets that dampen the sound, right? Grateful for tips and thoughts!
Put up a layer of regular gypsum instead of OSB.
Double gypsum carries reasonably well. Otherwise, if you have heavy items, install something like the Pelly system where the vertical support rails are screwed into the wall studs. Or put up one or several boards horizontally, screwed into the wall studs, and attach hooks & shelves to the boards.
Double gypsum carries reasonably well. Otherwise, if you have heavy items, install something like the Pelly system where the vertical support rails are screwed into the wall studs. Or put up one or several boards horizontally, screwed into the wall studs, and attach hooks & shelves to the boards.
Hello and welcome to the forum. 
OSB outside the drywall can be a bit ugly, I think (though I'm not 100% set in that opinion; just a week ago, I saw a wall where they left it as a raw OSB surface as the finish, and at least there, it wasn't entirely bad, even somewhat stylish. But it was clear that it had been difficult to avoid having seams and corners full of nasty splinters without "sanding down" the edge completely and thereby the design).
The fire rating doesn't worsen with OSB on the drywall; on the contrary, the fire rating increases (as a separating wall between different fire cells), though it doesn't achieve as good values as if the drywall were outside the OSB, but at least it's not worse compared to single drywall.
Soundproofing is basically unaffected; transmission through the wall is quite similar for double drywall as drywall+OSB, generally a little better with double drywall. Single drywall dampens worse.
Sound absorption (dampening the sound in the room) is probably not worse with OSB than a drywall surface; I actually think the drywall reflects slightly more.
Double drywall is cheap and provides a nice, smooth surface. Double drywall molly holds up to a lot of weight. But then again, it's not always fun having to deal with molly screws all the time. And after removing something, there's an ugly "coin" left in the wall.
But if you can live with this, I think it's the best solution.
Personally, I would probably choose between putting on another layer of drywall or taking the hit and first tearing down the existing drywall and then installing OSB + new drywall.
OSB outside the drywall can be a bit ugly, I think (though I'm not 100% set in that opinion; just a week ago, I saw a wall where they left it as a raw OSB surface as the finish, and at least there, it wasn't entirely bad, even somewhat stylish. But it was clear that it had been difficult to avoid having seams and corners full of nasty splinters without "sanding down" the edge completely and thereby the design).
The fire rating doesn't worsen with OSB on the drywall; on the contrary, the fire rating increases (as a separating wall between different fire cells), though it doesn't achieve as good values as if the drywall were outside the OSB, but at least it's not worse compared to single drywall.
Soundproofing is basically unaffected; transmission through the wall is quite similar for double drywall as drywall+OSB, generally a little better with double drywall. Single drywall dampens worse.
Sound absorption (dampening the sound in the room) is probably not worse with OSB than a drywall surface; I actually think the drywall reflects slightly more.
Double drywall is cheap and provides a nice, smooth surface. Double drywall molly holds up to a lot of weight. But then again, it's not always fun having to deal with molly screws all the time. And after removing something, there's an ugly "coin" left in the wall.
But if you can live with this, I think it's the best solution.
Personally, I would probably choose between putting on another layer of drywall or taking the hit and first tearing down the existing drywall and then installing OSB + new drywall.
Thank you for all the answers.
Filling is out of the question as some holes are too large. I'm choosing between tearing down and redoing everything or putting something on top. Adding another layer of plasterboard doesn't seem relevant as I want it to be properly durable, so osb is the question, just how and where.
Putting osb+plasterboard on top of everything has crossed my mind, but it will be maaaany screws to miss in order to hit the studs. The positive aspect should be that it insulates a little better? since the garage lacks insulation.
How difficult is it to fit sockets/switches in the different options?
Filling is out of the question as some holes are too large. I'm choosing between tearing down and redoing everything or putting something on top. Adding another layer of plasterboard doesn't seem relevant as I want it to be properly durable, so osb is the question, just how and where.
Putting osb+plasterboard on top of everything has crossed my mind, but it will be maaaany screws to miss in order to hit the studs. The positive aspect should be that it insulates a little better? since the garage lacks insulation.
How difficult is it to fit sockets/switches in the different options?
Hmm.. in just the TS setting, perhaps Plywood would be a better option, aesthetically..? Somewhat more expensive, admittedly, but it doesn't look so gloomy after all... Alternatively, classic particle boards that are painted...
What do you mean?Fesoj said:
Is it heat insulation, or sound insulation?
Are the walls built together with the house?
Ahh, uninsulated exterior walls and scruffy, dirty, broken graffiti-covered gypsum boards inside.
Yes, now it's clear, I am now 100% sure of what I would have done.
Tear down all the existing gypsum, insulate, put up OSB, then new gypsum.
Guaranteed the only solution that won't leave you very dissatisfied later, in this situation.
The only little snag is probably how the previous builder has dealt with studs, battens, windproofing, and air gap and such.
Ideally, there should be an air gap behind the façade panel, especially since it is painted with an acrylic paint.
Then wind protection behind the air gap and only then insulation.
But there are some alternative solutions if it's not well built now.
Taking down the entire façade to fix what's behind rarely feels like a real option, unless it's already somewhat rotten.
Yes, now it's clear, I am now 100% sure of what I would have done.
Tear down all the existing gypsum, insulate, put up OSB, then new gypsum.
Guaranteed the only solution that won't leave you very dissatisfied later, in this situation.
The only little snag is probably how the previous builder has dealt with studs, battens, windproofing, and air gap and such.
Ideally, there should be an air gap behind the façade panel, especially since it is painted with an acrylic paint.
Then wind protection behind the air gap and only then insulation.
But there are some alternative solutions if it's not well built now.
Taking down the entire façade to fix what's behind rarely feels like a real option, unless it's already somewhat rotten.
However, if you can tolerate simple plasterboard, you can repair more or less arbitrarily large holes by fitting in some pieces of stud "behind" the hole and screwing in a new piece of plasterboard that you adjust to fit the hole. Then you spackle the joints like any other plasterboard joint.Fesoj said:
Certainly, cooler in the summer. Less condensation in the winter.Fesoj said:
But most importantly, you can change your mind and start heating it, also a good thing if you just occasionally need a heated garage, for example, if something suddenly needs fixing on the car.