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Soundproof partition wall with interior door, how do I frame it?
I'm planning to partition the corridor in my villa to rent out part of the house.
The opening is 120 cm wide, ceiling height 237 cm.
There is currently a laminate floor on a chipboard. I would prefer to cause as little damage as possible to the floor so that the wall can be removed in the future if needed.
To be as undisturbed as possible by the tenants, I would like to soundproof to a reasonable degree.
I am in no way knowledgeable about construction. The following is based on googling and not on experience.
I have the following suggestion that I would like opinions on.
I am considering an 8x21 interior door from Swedoor, 35 dB with a rubber threshold and seal strip. This door leaf weighs 66 kg...
https://www.k-rauta.se/produkt/inne...ft-03-vit-8x20-vanster-ei3035db/5700361842190
Steel track Norgips UP70 with 4 mm polyethylene against the floor, ceiling, and the walls on the corridor sides.
https://www.k-rauta.se/produkt/stalskena-norgips-up7055-4mm-polyeten-3000mm/7332169008485
Two standing steel studs 70 mm and then a 95 mm wooden stud against these at the door opening.
I plan to use 12 mm plywood on the inside and then single drywall to easily attach moldings and other items. But would double drywall be that much better? How would I attach moldings in such a case (thinking it might be difficult with the metal studs)?
The wall thickness with this construction is 13 mm drywall, 12 mm plywood, 70 mm stud, 12 mm plywood, 13 mm drywall, and thus 120 mm. Should I then choose a 118 mm frame?
If I use a 95 mm wooden stud at the door opening to attach the frame to, can I then go against the 95 mm stud with plywood and then drywall up to the door frame with the drywall?
The frame extends 12 mm on each side of the 95 mm wooden stud but does this not pose any problems for fastening the frame to the stud?
I plan to use rubber sealing strips between the metal stud and wooden stud at the door opening and then insulate with glass wool between the frame and wooden stud, will this be sufficient?
Should I do anything differently than described above?
Anything else I should consider?
The opening is 120 cm wide, ceiling height 237 cm.
There is currently a laminate floor on a chipboard. I would prefer to cause as little damage as possible to the floor so that the wall can be removed in the future if needed.
To be as undisturbed as possible by the tenants, I would like to soundproof to a reasonable degree.
I am in no way knowledgeable about construction. The following is based on googling and not on experience.
I have the following suggestion that I would like opinions on.
I am considering an 8x21 interior door from Swedoor, 35 dB with a rubber threshold and seal strip. This door leaf weighs 66 kg...
https://www.k-rauta.se/produkt/inne...ft-03-vit-8x20-vanster-ei3035db/5700361842190
Steel track Norgips UP70 with 4 mm polyethylene against the floor, ceiling, and the walls on the corridor sides.
https://www.k-rauta.se/produkt/stalskena-norgips-up7055-4mm-polyeten-3000mm/7332169008485
Two standing steel studs 70 mm and then a 95 mm wooden stud against these at the door opening.
I plan to use 12 mm plywood on the inside and then single drywall to easily attach moldings and other items. But would double drywall be that much better? How would I attach moldings in such a case (thinking it might be difficult with the metal studs)?
The wall thickness with this construction is 13 mm drywall, 12 mm plywood, 70 mm stud, 12 mm plywood, 13 mm drywall, and thus 120 mm. Should I then choose a 118 mm frame?
If I use a 95 mm wooden stud at the door opening to attach the frame to, can I then go against the 95 mm stud with plywood and then drywall up to the door frame with the drywall?
The frame extends 12 mm on each side of the 95 mm wooden stud but does this not pose any problems for fastening the frame to the stud?
I plan to use rubber sealing strips between the metal stud and wooden stud at the door opening and then insulate with glass wool between the frame and wooden stud, will this be sufficient?
Should I do anything differently than described above?
Anything else I should consider?
Why mix metal studs and wooden studs if you're going to have wooden studs at the door hole anyway? Why not use wood all the way?
You will get better sound insulation if you use double gypsum than if you use plywood/gypsum (or OSB/gypsum). Don't forget to insulate in the wall to reduce drumming noise.
You will have a horizontal stud against the floor and one against each wall as well as against the ceiling, so baseboards and moldings can be nailed/screwed into the studs even with double gypsum.
Don't forget to seal against the ceiling/walls/floor to stop sound waves from "sneaking around" the wall.
Place the wall on EPDM rubber against the floor to get vibration damping and protection for the floor, but you will still get some impact sound transmitted through the floor since you don't seem to be considering cutting where the wall will stand. It may be difficult not to put a screw on each side of the door down into the floor to secure the wall with such a heavy door. The wall side may be fine just screwing into the wall.
Then, if you really want to soundproof, you should build two walls without mechanical connection between them, but that may be overkill.
You will get better sound insulation if you use double gypsum than if you use plywood/gypsum (or OSB/gypsum). Don't forget to insulate in the wall to reduce drumming noise.
You will have a horizontal stud against the floor and one against each wall as well as against the ceiling, so baseboards and moldings can be nailed/screwed into the studs even with double gypsum.
Don't forget to seal against the ceiling/walls/floor to stop sound waves from "sneaking around" the wall.
Place the wall on EPDM rubber against the floor to get vibration damping and protection for the floor, but you will still get some impact sound transmitted through the floor since you don't seem to be considering cutting where the wall will stand. It may be difficult not to put a screw on each side of the door down into the floor to secure the wall with such a heavy door. The wall side may be fine just screwing into the wall.
Then, if you really want to soundproof, you should build two walls without mechanical connection between them, but that may be overkill.
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