Building new, several questions about interior walls, wet rooms etc.

hul · 27 Feb 2017 at 12:12 PM

Kane said:
Isn't 15 mm construction plywood still a requirement?

Do not use water-resistant gypsum boards in wet rooms; they are just unnecessary.
2 layers of regular gypsum board work well with recessed noggins.
1 layer of regular gypsum board with OSB or plywood is better.
OSB works well as long as you know how to screw into it.

SBH · 27 Feb 2017 at 1:49 PM

Patrik Lidstedt said:
Not enough to be a concern, if the wall is going to be permanent then it's appropriate to ask the builder to finish the flooring where you want the wall, and then lay the floor in the small room yourself^^

They will hardly "leave" space for the wall you don't want to pay for!

it moves. enough to be a problem. you have no idea what a parquet or laminate can do when it moves

SBH · 27 Feb 2017 at 1:51 PM

hul said:
Do not use wet room gypsum in wet rooms, they are just unnecessary.
2 layers of regular gypsum work fine with embedded noggings.
1 layer of regular gypsum with OSB or ply is better.
OSB works well as long as you know how to screw into it.

what special method do you mean?

besttools · 27 Feb 2017 at 2:44 PM

Patrik Lidstedt said:
Not enough to be a concern, if the wall is to be permanent, it might be suitable to ask the builder to finish the flooring where you want the wall, and then lay the floor in the small room yourself^^

They will hardly "leave" space for the wall you don't want to pay for!

I'll sneak in at night and screw a stud into the floor so they lay the floor around it haha.

No, but what you said was smart. Ask them to stop laying the floor there and stack the leftover flooring so I can lay it myself. It doesn't take many minutes to lay some laminate.

hul · 27 Feb 2017 at 2:51 PM

SBH said:
what special way do you mean?

Sorry, I didn't understand the question?

SBH · 27 Feb 2017 at 2:56 PM

hul said:
Excuse me but did not understand the question?

"osb works well as long as you know how to screw into it."

hul · 27 Feb 2017 at 3:24 PM

SBH said:
"osb works well as long as you know how to screw into it."

aha okay, I think many people think osb is bad because screws don't hold well in osb
But it's often just an operating error, if you drill correctly and then screw, osb works well.
which can be an advantage since osb is still a bit cheaper than plyfa

Jonatan79 · 27 Feb 2017 at 3:26 PM

You can do the prep work and sealing in the bathroom yourself if you are meticulous and well-informed. However, tiling is no walk in the park if you haven't tried it before.

hul · 27 Feb 2017 at 3:27 PM

Jonatan79 said:
You can do the preparation and waterproofing in the bathroom yourself if you are meticulous and well-informed. However, tiling isn't a walk in the park if you haven't tried it before.

On the other hand, not all tilers continue after someone else has waterproofed

Jonatan79 · 27 Feb 2017 at 3:33 PM

Absolutely right. You should check with the plattsättaren to ensure he agrees with the matter, and it may happen that he requires 100% straight walls and 90-degree corner angles, etc., depending on the type & size of tiles you choose.

Patrik Lidstedt · 27 Feb 2017 at 3:38 PM

Back to the question about Laser, buy a decent one directly! I would say it's the best investment after a good saw o gives!

SBH · 27 Feb 2017 at 5:39 PM

hul said:
aha okay, I think many people believe OSB is bad because screws don't hold well in OSB
But it's often just a handling error, if you drill correctly and then screw, OSB works well too.
Which can be an advantage since OSB is still somewhat cheaper than Plyfa

recommendation not to drill OSB or plywood. especially not in bathrooms

hul · 27 Feb 2017 at 5:53 PM

SBH said:
recommendation not to drill OSB or plywood. especially not in bathrooms

exactly that's what I wanted to point out.
many drill into the tiles then push the drill straight through the backing board.
after that, they complain that the screw doesn't hold

SBH · 27 Feb 2017 at 5:57 PM

hul said:
exactly that was what I wanted to convey.
many drill into the tile and then push the drill straight through the backing board.
after that, they complain that the screw doesn't hold

strong man is if drilling through both plasterboard and osb/plywood.
if it's just plasterboard or wet room board, you want to go through with the same drill for the plug.

KnockOnWood · 27 Feb 2017 at 7:13 PM

SBH said:
it moves. enough to be a problem. you have no idea what a parquet or laminate can do when it moves

Absolutely right! At night, you can hear the floor growling, and actually howling at the full moon

Jokes and nonsense aside: We have a Kährs beech floor, which is at most 12 meters wide. On it stands kitchen cabinets, and a "kitchen peninsula" at one end.

Never, in seven years, have we had the slightest problem with movements in the floor.