Author Topic: Dual Gliding Patio Doors Back To Back  (Read 3940 times)

Attenuator

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Dual Gliding Patio Doors Back To Back
« on: February 24, 2011, 03:53:22 PM »
I was looking at Master Piece gliding doors with fiberglass frames and dual panes of tempered low E glass and could by two of them for 400.00 less than the price of one Milgard slider with 1/8 SunCoat Low-E and 7/32 Laminated Glass. No STC info available. Any thoughts on putting two sliding glass doors back to back in an opening that presently houses a single pane slider? I will be building a frame on the bedroom side of the wall to support the second slider. Concerns are safety; i. e. tripping on the threshold(s) while walking through the maze of doors (Maxwell Smart may have been on to something.)  There would be about a 6" gap between the two sets of doors. Will this gap be too much space and allow for reverberation? I am trying to block out neighbor noise coming from a back yard less than 10 feet away. While this may then make the walls the weak point I will cross that bridge when I come to it. The frequency of the noise is not bass but loud talking and loud higher-pitched music.

Randy S

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Re: Dual Gliding Patio Doors Back To Back
« Reply #1 on: February 25, 2011, 11:18:46 PM »
ok this is actually a great idea for the double sliders and I am glad someone is actually willing to pull the trigger on such a project!.
The Air space is key, so your 6" is perfect! the bigger the better. Make sure you seal everything air tight.
Frame to existing walls, sliders to frame everything airtight.
let me know how it turns out!
Randy Sieg

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www.soundproofing.org
888-942-7723
Ph. 760-752-3030
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Attenuator

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Re: Dual Gliding Patio Doors Back To Back
« Reply #2 on: February 25, 2011, 11:55:51 PM »
Thanks Randy. My latest thoughts on this are to just frame a whole freakin wall since the second slider will be inset 6" anyway. I only have 4' on each side of the slider to frame and both sides will corner right into another wall each way. However I assume to take that 6" space up here is where I need worry about resonance. 2x4s 23" apart filled with fiberglass no doubt. But from there with all the sound clips and Resilent Channel out there, not to mention the theories on mass.... a layman can get confused and make matters worse with vibration real easy. The question is to decouple the wall or not as it will still butt up against two existing walls. Thoughts?

Randy S

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Re: Dual Gliding Patio Doors Back To Back
« Reply #3 on: March 01, 2011, 04:08:13 PM »
just build a new 2x4 frame not touching the existing wall. no clips and channel needed ...open up the existing wall and insulate new wall with cotton fiber and add MLV followed by 5/"8" drywall.

Randy Sieg

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

Attenuator

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Re: Dual Gliding Patio Doors Back To Back
« Reply #4 on: March 02, 2011, 08:25:59 AM »
just build a new 2x4 frame not touching the existing wall. no clips and channel needed ...open up the existing wall and insulate new wall with cotton fiber and add MLV followed by 5/"8" drywall.



When you suggest "open up the existing wall" you mean pull the sheetrock off the existing wall? This would be to avoid the "triple leaf" effect? Messy and more work especially in a finished bedroom but worth the effort to avoid the dreaded trple leaf. Only other way would be put a 5/8 sheet of dry wall over existing rock, 2x4 framing against rock, insulation and more dry wall to equal 5 3/4 inches. That would add more mass but be more costly and probably just as messy if not more so. More vibration as well. My concern is that the air gap will only be about 1 5/8" even after removing the existing drywall. Any problem with that small of a gap?

Randy S

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Re: Dual Gliding Patio Doors Back To Back
« Reply #5 on: March 02, 2011, 04:42:38 PM »
thats why I want you to open the existing wall up...you need to avoid the triple leaf and therefore the gap would larger than 1 5/8" .... depth of existing wall plus additional space of 2 x 4.
Most importantly, you want to separate the new frame from the old even if its only 1/4" this will help reduce the vibration getting through the assembly. just adding to the wall is a mistake.

Heres my contact number
760-752-3030 ext 104
Randy Sieg

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