Please help how should we fix the roof?

[Sanaz]

We have moved to a new house. The previous owner had glued/fixed styrofoam tiles over the ceiling, which he thought looked nice. Ugh. We've torn down all the styrofoam tiles but now there are a million lumps on the ceiling that remain. We've tried using sanders but it takes forever, we've tried chiseling/scraping them off the drywall, also takes forever. We are not going to tear down the ceiling and put up new, but we are considering trying to sand down the ones that bulge out too much and then just plaster over? Does that sound reasonable??? Even if it involves a lot of plaster?

 

[Viktor.J]

How much does the glue build? One option is to lower the ceiling and apply new plasterboard.

 

[saltet]

I was going to install new renovation plasterboard.
It must be the easiest.

 

[Viktor.J]

I would install new renovation gypsum.
That must be the simplest.

It depends on how thick the adhesive is. If it's a few millimeters, the renovation gypsum might crack. But if you lower the ceiling by 10-20 mm with battens or something similar and then put gypsum on it, it should be fine.

 

[Sanaz]

It depends on how thick the glue is. If it's a few millimeters, the renovation plasterboard will likely crack. But if you lower the ceiling by 10-20 mm with batten or something similar and then put plasterboard on that, it should be fine.

But that was smart! I'm in the process of scraping so the glue isn't thick. Do you think it will work if it's at most 2 mm? I can probably sand it down to less, but that way we avoid entering a spackling hell where it will never be even and nice.

 

[Sanaz]

But that was smart! I'm currently scraping away to make sure the glue isn't too thick. Do you think it will work if it's at most 2 mm? I can probably sand it down more, but then we can avoid getting into a spackling nightmare where it will never be even and nice

 

[Sanaz]

In the worst case, lower and build plasterboards on it

 

[Viktor.J]

But that was smart! I'm scraping away so the glue isn't thick. Do you think it will work if it's at most 2 mm? I can probably sand it down to less, but then we avoid entering a putty hell where it will never be even and nice

Hard to say, best to test An alternative is to first lay OSB boards that even out the irregularities and then gypsum. Use thicker gypsum that can handle the remaining irregularities better

Unfortunately, there will still be a bit of puttying and sanding.

What kind of ceiling have they glued the foam to?

 

[Sanaz]

Yes, I am prepared for filling and sanding, but not on this current ceiling... It looks like thick gypsum boards or something similar.

 

[Viktor.J]

Yes, I'm prepared to spackle and sand but not on this ceiling as it is now... It looks like thick drywall sheets

Why don't you just tear down the drywall and put up new ones in that case?

 

[Sanaz]

Maybe we should do it..... I was hoping we wouldn't have to tear down so much..

 

[Viktor.J]

Maybe we should do it..... I was hoping we would avoid tearing down so much..

If you're going to drywall new and possibly build down new, maybe it's just as well. You can glue drywall too, but it might be difficult when it's the ceiling and you have unevenness. Do you know what's above the drywall?

 

[Mlindahl]

I would tear everything down and install new.

Or lower the ceiling and install new.

Sanding and scraping those feels like there are other things to spend those hours on.

If you don't really need to keep the budget down on this.

 

[hempularen]

Renovation plasterboard (6mm) I think will be difficult on the ceiling. Difficult to get it level. Install new plasterboards, it's not expensive and goes quickly. Rent a drywall lift over a weekend. Some building markets lend it out for free if you buy the boards there. You might consider tearing down the boards that are there. And it's important to locate where the furring strip is, so you have something to screw into.

 

[Sanaz]

Renovation plasterboard (6mm) I think will be difficult on the ceiling. Difficult to get it flat. Install new plasterboards; it's not expensive and it goes quickly. Rent a drywall lift for a weekend. Some building supply stores lend it for free if you buy the boards there. You might consider tearing down the boards that are there. And it's important to locate where the sparse panel is, so you find something to screw into.

We decided to do that! Tear everything down and put in new ones. Realized it was the best and most practical thing to do. So typical that the previous owner had done it so poorly.