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Old 09-06-2010, 08:14 AM   #1
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Metallic Popping Sound


Hi all,

Have a question for you all. Our home is about 3 years old. Ever since we moved in we have heard a soft but audible metallic popping sound coming from inside our bedroom exterior wall. It seems to only happen when the temperature rises. I was wondering if perhaps the guys who bricked out house some how did not attach those metal strips that the bricks are attached to correctly. We are baffled and have gotten used to it but wanted to ask the panel of experts. As for asking the builder, well you guys know the answer to that one. One last tid bit, my home has been insulated with spray in foam. Not sure if that has anything to do with it or not.

Looking forward to hearing what you all think about this one.

Matt in Fort Worth

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Old 09-06-2010, 08:19 AM   #2
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Metallic Popping Sound


any chance of an air duct being in the area you are hearing the sound?

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Old 09-06-2010, 08:28 AM   #3
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no the air ducts are in attic and the one closest to our bedroom comes into the ceiling. the air ducts in my attic air more like flexible hoses draped where ever needed. the sound is coming from the outside wall of the house. the sound reminds me of a tin can bending crushing sound. Thin metal.

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Old 09-06-2010, 09:06 AM   #4
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Is there any metal siding or trim in the area? Metal soffit maybe?
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Old 09-06-2010, 10:04 AM   #5
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Metallic Popping Sound


maybe an old beer can
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Old 09-06-2010, 10:04 AM   #6
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Our home is completely foam insulated including the underside of the roof. There are no sofits for attic ventilation. Could one of those metal brick tags be causing the noise? It's weird it never goes away and is temperature related.
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Old 09-06-2010, 10:07 AM   #7
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hard to believe a brick tie would be heard thru all that foam
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Old 09-06-2010, 10:20 AM   #8
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I can't see how a brick tie would even make noise let alone something you would hear. Typically tinny sounds generated in a house are from sheet metal expanding and being restrained on the edges. The center then flexes inward or outward like an old oil can. A brick tie would be free to flex without such restraint so it would merely bend without the pop.

while the air ducts may be flex, those flex ducts are attached to something such as a boot which is made of tin. Since you have so much physically restrictive insulation, I can see where maybe the tin of a boot or some such ductwork piece might do the oil can thing.


when you say temp related, are you speaking of outside temp? Have you noticed any correlation between the sound and the AC coming on?
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Old 09-06-2010, 10:24 AM   #9
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do you have radiant heat in the floor?
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Old 09-06-2010, 10:28 AM   #10
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yes it seem like the outside air temp has a lot to do with the noise. no radiant heat floors.
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Old 09-06-2010, 10:32 AM   #11
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Originally Posted by Motoman43 View Post
Hi all,

Have a question for you all. Our home is about 3 years old. Ever since we moved in we have heard a soft but audible metallic popping sound coming from inside our bedroom exterior wall. It seems to only happen when the temperature rises. I was wondering if perhaps the guys who bricked out house some how did not attach those metal strips that the bricks are attached to correctly. We are baffled and have gotten used to it but wanted to ask the panel of experts. As for asking the builder, well you guys know the answer to that one. One last tid bit, my home has been insulated with spray in foam. Not sure if that has anything to do with it or not. Is their a garden hose bib their??

Looking forward to hearing what you all think about this one.

Matt in Fort Worth
go out side and see you can here it ? Like take a glass and put the bottom on the brick and track it down. Is this a solid brick wall? no window's ? I bet you will find where the loudest sound is. Now mark the spot and call the fellow that put up the wall and let him here the sound. Let him take it from their. I would guess a warrenty? If not How much $$$. Or live with it?

Last edited by del schisler; 09-06-2010 at 10:34 AM. Reason: more info added
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Old 09-06-2010, 11:21 AM   #12
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need pics inside and out where you think the noise is comeing from
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Old 09-06-2010, 12:26 PM   #13
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need pics inside and out where you think the noise is comeing from
time to get out the Partner saw!!!

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Old 09-06-2010, 12:42 PM   #14
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Metallic Popping Sound


What kind of soffit do you have? It wouldn't happen to be aluminum? How about gutter, it will expand and contract a great deal and sometimes will make noise is it is binding.
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Old 09-06-2010, 01:35 PM   #15
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time to get out the Partner saw!!!

oooo yea.... lets try that next

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