Super Soundproofing Community Forum

Soundproofing Forum Topics => Soundproofing Windows and Doors => Topic started by: HokieMan on February 06, 2012, 08:40:01 PM

Title: Interior doors. Safe N' Sound vs MDF vs Exterior
Post by: HokieMan on February 06, 2012, 08:40:01 PM
Hello everyone. I've been working on a DYI soundproof(ish) bandroom in my basement for over a year now. I've got: 2 layers of thick black roofing material, double drywall with green glue walls, the resilient channel (RC2) on the ceilings. Now I'm starting on the doors.

The crappy thing about this room is that I have 5 doors to worry about. All different sizes and heights.

I went to home depot and they sell something called 'Safe N' Sound' doors. Anyone know how they compare in price and soundproofing vs a MDF door? http://www.masonite.com/pdf/commitmentEnvironment/SNS_EmeraldBrochure.pdf (http://www.masonite.com/pdf/commitmentEnvironment/SNS_EmeraldBrochure.pdf)

My question to you is: If you were going to walk into Home Depot (or Lowes) and order 5 sound proof doors, preferably for under $150 each. Which one would you buy exactly?

Thanks in advance.
Title: Re: Interior doors. Safe N' Sound vs MDF vs Exterior
Post by: Randy S on February 06, 2012, 08:51:44 PM
You and I have already spoke about these doors and I am all for it from what I have read, take a look at this forum and what these guys say about them...

http://www.avsforum.com/avs-vb/showthread.php?t=863141

Title: Re: Interior doors. Safe N' Sound vs MDF vs Exterior
Post by: HokieMan on February 08, 2012, 03:19:39 PM
Thanks Randy. I've read through that thread, and it was very helpful.

The big thing holding me back from buying the 'Safe-n-Sounds' is the STC rating of 27. That doesn't seem very good at all.
http://www.masonite.com/pdf/architecturalSpecs/SafeSoundSpec.pdf (http://www.masonite.com/pdf/architecturalSpecs/SafeSoundSpec.pdf)

Jeld-Wen also has STC ratings for their doors, but I can't make sense of which doors they refer to.
http://www.jeld-wen.com/images/stories/pdf/performance_ratings/wood-acoustic-ratings.pdf (http://www.jeld-wen.com/images/stories/pdf/performance_ratings/wood-acoustic-ratings.pdf)

Then I got looking into the serious stuff like these doors. There are no prices listed, but I'm assuming these things are $3k a piece. Way out of my budget.
http://www.republicdoor.com/doors/acoustical.htm (http://www.republicdoor.com/doors/acoustical.htm)
http://www.acousticalsurfaces.com/acoustic_doors/soundproof_doors.htm (http://www.acousticalsurfaces.com/acoustic_doors/soundproof_doors.htm)

Am I over thinking it? I just don't want to spend money buying 4 doors, and then find out later that I could've gotten something with more STC for a similar price.

Also - when I ask the people at home depot for a MDF door they look at me confused. They sell solid core, but they have no clue what's inside.
Title: Re: Interior doors. Safe N' Sound vs MDF vs Exterior
Post by: Randy S on February 08, 2012, 05:45:54 PM
There lies the problem, the STC 27 will be adequate if you have single frame construction in a non decoupled assembly. If you want to achieve higher reductions you would have to step up to a double door system with decoupled door jambs and decoupled wall assembly.

You can always add Mass to the door to increase its STC but in the end the jamb will remain the weak spot.

 
Title: Re: Interior doors. Safe N' Sound vs MDF vs Exterior
Post by: HokieMan on February 09, 2012, 02:38:41 PM
Thanks Randy. You've convinced me, again.