Author Topic: Where to start sound proofing for noisy tenants??  (Read 17872 times)

Mr.Jinx

  • Guest
Where to start sound proofing for noisy tenants??
« on: November 10, 2008, 08:18:45 PM »
Good day:

We are the proud first time owner of a dumpy, old (1938) bungalow style house.  The basement suite (with it's own entrance) is completely separate from the main floor was developed probably 15 years ago.  Upon buying the house last March we've since rented the basement out to help with our humongous mortgage. 

Bring the noise ...

We are now very sleep deprived as we can hear our tenant's conversations and/or banging and clanging (and I'm sure it's the same for our tenants)  :(.  On top of that i'm sure it's no picnic for them as our floor boards are squeaky, squeaky everywhere.  The entire ceiling of the basement has a suspended drop ceiling.  There is no insulation between the joists.  On the main floor which is 900 sq feet the kitchen has old hardwood, the bathroom, front and rear entrances are Linoleum, and the 2 bedrooms and living room are carpet.

We don't want to spend a ton of money because our plan is to tear the house down in a few years.  However our tenant's are moving out as they can't stand the pitter patter of our foot steps.

So where should we start?

Would it be sufficient to install some sort of sound proofing system in the basement ceiling, or would that not help in blocking the transmission of the squeaky floor boards?  If the best route is to install something in the ceiling, how would it be installed (e.g. attached to the joists)?

Can you please recommend a sound approach (no pun intended)?

Kind regards,


Sleepless in suburbia




Randy S

  • Senior Soundproofing Technical Specialist
  • Global Moderator
  • *****
  • Posts: 799
    • Super Soundproofing Co
Re: Where to start sound proofing for noisy tenants??
« Reply #1 on: November 10, 2008, 11:20:20 PM »
You have to make a decision if you want to invest this kind of money in a soundproof ceiling system only to tear it down in a year or two. To make a recomendation that will meet you half way, I would say use Cotton Fiber insulation above the drop ceiling in the basement this will help absorb air borne noise from above and below.
http://www.soundproofing.org/infopages/natural_fiber.htm

Then I would use MLV w/closed cell foam underlayment in your living room and bedrooms for under the carpet area.
http://www.soundproofing.org/infopages/flooring.htm
And the materials can be re-used when you rebuild.

Now this will give you both some relief when people are in the living room and bedroom areas only and a minor reduction for the hardwood nail down flooring area.

If you decide to fully soundproof the basement ceiling instead for the hardwood nail down flooring area, this will require a completely decoupled ceiling in the basement and entail clips and channel,MLV and closing up the whole ceiling with drywall/green glue/drywall. A far more expensive process to do if you are tearing down the house so soon.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

Mr.Jinx

  • Guest
Re: Where to start sound proofing for noisy tenants??
« Reply #2 on: November 11, 2008, 01:01:44 AM »
Hi Randy:

Thanks for your speedy reply. 

For the cotton fiber insulation how thick should I purchase?  I'm assuming the thicker the better?  How much better is a 8 inch thick versus a 5.5 inch thick?

Also, if I went with the 1st option the natural fiber, and the MLV w/cell foam, how much of a difference in noise levels could I expect?

P.S. Do you ship to Canada?

Thanks!

Mr.Jinx

  • Guest
Re: Where to start sound proofing for noisy tenants??
« Reply #3 on: November 11, 2008, 02:20:46 AM »
And one more question, how does the cotton fibre compare to products like Roxul Safe'n'Sound made of mineral wool?

johnbergstromslc

  • Guest
Re: Where to start sound proofing for noisy tenants??
« Reply #4 on: November 11, 2008, 02:34:17 AM »
And one more question, how does the cotton fibre compare to products like Roxul Safe'n'Sound made of mineral wool?

Just to jump in as a disinterested party, who's not selling any insulation of any kind, if you have a quality installation job, there is virtually no difference acoustically between fiberglass, cotton and mineral wool.  Use whatever you can get the cheapest, fill the cavity (not packed too tight) and don't worry about it.

And having read the problem in your original post, since you're going to tear the house down in a couple years, you might just want to install 2 layers of drywall on the basement ceiling.  Drywall is the most cost-effective way to get mass up on the ceiling.   There will still be some sound transfer, but a lot less than with flimsy drop ceiling panels.  A drop ceiling is nearly worthless for blocking transmission of sound. 


Randy S

  • Senior Soundproofing Technical Specialist
  • Global Moderator
  • *****
  • Posts: 799
    • Super Soundproofing Co
Re: Where to start sound proofing for noisy tenants??
« Reply #5 on: November 12, 2008, 05:39:37 PM »
Because your in Canada, mineral wool is easiest to get....so use that...filling the cavity is whats important and closing the ceiling with drywall is the next course of action for airborne noise. Decoupling will be needed for impact noise problems.
No matter what you do it will be better than what you have now, it is just how much work and money you want to invest when in the end it will be torn down.
Using the insulation above the drop ceiling (thicker the better), can be re-used in your new construction. You will not tear down drywall to re-use the insulation if you close the ceiling up.
And for the underlayment the same applies, you can re-use this as well in your new construction.

And as an employee for Super Soundproofing Company I myself find it hard to justify the expense to soundproof if it will be torn down and thrown away in a short period of time, so the idea of being able to re-use your material is I feel a better use of your money. :)

We do ship to Canada for the carpet underlayment material.



Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

johnbergstromslc

  • Guest
Re: Where to start sound proofing for noisy tenants??
« Reply #6 on: May 08, 2009, 06:32:29 PM »
Just to jump in as a disinterested party, who's not selling any insulation of any kind, if you have a quality installation job, there is virtually no difference acoustically between fiberglass, cotton and mineral wool.  Use whatever you can get the cheapest, fill the cavity (not packed too tight) and don't worry about it.

Sounds like great advice - oh, wait a minute, that's because it's mine!!!

Please go waste time somewhere else - the internet is a big place.

Randy S

  • Senior Soundproofing Technical Specialist
  • Global Moderator
  • *****
  • Posts: 799
    • Super Soundproofing Co
Re: Where to start sound proofing for noisy tenants??
« Reply #7 on: May 08, 2009, 06:45:01 PM »
Thanks John,!!!
we agree with you on this one...I just sent them an email as well...
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040