Walls of building board, questions

[Mjolnir]

Hello,

A few questions but I hope to get answers, appreciate all the info I can get.

I am renovating a house built in 1990. The walls are made of building board panels (9 mm), similar to type masonite, everything is wallpapered today.

1) Advantages and disadvantages of walls made of building board in wood, compared to, for example, plasterboard?

2) The walls need to be smooth before painting, what is most suitable or do all work equally well? Full plastering, renovation plasterboard, renovation wallpaper, other?

3) Can building board emit a bad smell, like old closets? I haven't noticed it yet, anyway.

4) Is there any reason to tear everything down to replace with, for example, plasterboard walls?

5) Need more electrical outlets (recessed), can you remove a piece of wall with a multitool and repair it with building board? Since it is a wood material, won’t the seams where repaired crack when it moves?

 

[Mjolnir]

Anyone?

 

[Huzzbutt]

I haven't noticed any bad smell. We've used renovation wallpaper as a base in several places, with a crack (Konkret renoveringstapet). I considered for a while whether we should replace them with plaster, or add renovation plasterboard, but it has proven unnecessary. As for recessed outlets, vetetusan.

 

[Mjolnir]

I haven't noticed any bad smell. We have used renovation wallpaper as a base in several places, with a crack (Konkret renovation wallpaper). I considered for a while whether we should replace them with plasterboard, or put on renovation plasterboard but it has proven unnecessary. As for recessed sockets, I'm not sure.

Thanks for the reply. Did you smooth the surface with joint compound for a more even base before the renovation wallpaper? Do you use carpentry filler on building board due to material movement or do you go with regular filler?

 

[BirgitS]

1) Plaster burns less readily than wooden boards.

5) Ask in the forum for El.

 

[Mjolnir]

Removed the old wardrobes and behind them were chipboards in brown as seen in the picture, that old wood smell is really noticeable if you stand in that corner.

How can you best get rid of this smell if you want to keep the chipboards? I will probably put on renovation gypsum and seal both to the ceiling and floor, not sure how much that will help.

 

[Henningelvis]

Removed the old wardrobes and behind them were chipboards in brown as seen in the picture, that old wood smell is really noticeable if you stand in that corner.

What's the best way to get rid of this smell if you want to keep the chipboards?

Try painting with some type of blocking paint. I believe they are supposed to remove odors.

 

[Mjolnir]

Try using some type of blocking paint. They should remove odor, if I remember correctly.

Blocking paint before putting up the drywall then? Thinking if the drywall helps to contain the odor, so to speak.

 

[Gnomeboy]

I have the same type of board throughout the house with horizontal studs! Not too fond of it The biggest problem is when larger/heavier items need to be hung up.

In some places, I've put on renovation wallpaper and then wallpapered as usual. Underneath you can see fiberglass tape and putty in the board seams from '73, and they probably have cracks everywhere.

Right now I'm tearing down walls and opening up around the kitchen and living room and exposing the chimney. We can really smell that scent you describe now! It smells a lot in the walls!

Some walls I'm only stripping on one side to move electricity, etc., then it's OSB and drywall so you can hang things without any problems!

 

[Mjolnir]

Have the same type of board throughout the house with horizontal studs! Not too fond of it The biggest problem is probably when larger/heavier things need to be hung up..

In some places, I have put renovation wallpaper on and then wallpapered as usual. Underneath, you see fiberglass strips and filler in the board seams from '73, and they have probably cracked everywhere.

Right now, I'm tearing down walls and opening up around the kitchen and living room and exposing the chimney. We can really smell the odor you're describing! Smells incredibly strong in the walls!

Some walls I'm just stripping one side of to move electrical, etc., then it's OSB and drywall so you can hang things up without any problem!

Thanks for the response. So you're only stripping certain walls that you then replace with OSB and drywall? You're not ripping out all of these board sheets?

Are yours nailed or screwed? I can't find any nail or screw heads on mine.

 

[Gnomeboy]

Thanks for the response. So you only strip certain walls and then replace them with OSB and drywall? You don't tear out all those board sheets?

Are yours nailed or screwed? I can't find any nail or screw heads on mine.

Exactly as you say! I only tear down the inside of the walls towards the living room since the outside towards the hallway is unfortunately already set up, but it's convenient for electricity and so on both sides

Really? Here there are a billion nails and staples so it's not easy to tear down, I can only get small pieces loose with the crowbar. Admittedly, there's also an old painted woven wallpaper on top

 

[Mjolnir]

No, exactly as you say! Just tearing down the inside of the walls towards the living room since the outside towards the hallway is unfortunately already set up, still convenient with electricity, etc., on both sides

Really? Here it's a billion nails and staples so not so easy to tear down, only getting small pieces off with the crowbar.. Admittedly there's also old painted textured wallpaper over it

Haha nice, you'll have to keep at it, it always turns out well in the end. I'll see if I have the energy to do like you, but I think and hope that renovation gypsum with sealant against the floor and ceiling will enclose the chipboard smell in the walls. Just don't want to regret it afterward. That's why I want to know how others have done and how it turned out.

 

[Henningelvis]

Sealing paint before putting up the plasterboards then? I'm thinking if the plasterboards help to keep the smell in, so to speak.

Exactly. If you find the smell very irritating, it's a way to make sure it disappears. It would be unfortunate if you put up the plasterboards and it turns out it still smells.

 

[Mjolnir]

Yes, exactly. If you find the smell very irritating, it's a way to ensure it disappears. It would be unfortunate if you put up plasterboard only to find that it still smells.

Might as well go for it while you're at it. I personally have good experience with Jotun's blocking primer, though I've read that it has the same content as wood glue which costs about a fifth of Jotun's blocking primer.

 

[z_bumbi]

Blocking paint before attaching the drywall then? Thinking if the drywall helps to keep in the smell, so to speak.

Do ozone treatment first.
Then blocking paint.
Then continue as usual.

What kind of peculiar chipboard smells after such a long time?