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Loud Noises from roof in Cold Weather

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Kamloops, BC
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[#1] Posted: 01/18/2012 - 11:33:27 PM
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I recently became a licensed home inspector, prior to that I was a carpenter and eventually a contractor and have seen many things when it comes to building structures. I can also admit when I am stumped.

In my house last night, Wood framed, built in 1972 I heard some loud cracking or thumping noises, very loud in fact I was a bit concerned something was going to give. This is the first time this has happened and I figure it has something to do with the temperature dropping to about -25 with a strong wind.

Its a vaulted ceiling so I have no real way of checking what it was without cutting into the drywall or going through the roof. Just wondering is anyone has any theories or has heard of anything like this. The best I can figure it has something to do with moisture in the woof getting so cold it pops (have seen trees explode when it gets too cold) or the sheathing or fasteners popping???

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Kenmore, WA
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Loud Noises from roof in Cold Weather
[#2] Posted: 01/19/2012 - 12:39:56 AM
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What kind of roof framing have you got?

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Mike

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DeWitt, Mi
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Loud Noises from roof in Cold Weather
[#3] Posted: 01/19/2012 - 05:21:14 AM
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is it plywood or osb decking? do you have ceiling fans? what kind of heat do you use?
I'd go with fastener pops at first blush.

Was this late evening on the 24th of December?

Les
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Loud Noises from roof in Cold Weather
[#4] Posted: 01/19/2012 - 06:30:16 AM
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Shoot.....Les beat me to the Santa Claus possibility.

I'd chalk it up to extreme temperatures and resulting differential movement. -25degF is pretty darn cold.


Kurt in Chicago

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Seattle, WA
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Loud Noises from roof in Cold Weather
[#5] Posted: 01/19/2012 - 4:21:09 PM
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How much snow is on the roof?
Richard Moore

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Loud Noises from roof in Cold Weather
[#6] Posted: 01/19/2012 - 4:44:54 PM
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I was going to ask the obvious. Is your house surrounded by tree's? Could it be limbs or ice falling from those tree's hitting your roof? Going through that right now at our place.
Rob Jones
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Kamloops, BC
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Loud Noises from roof in Cold Weather
[#7] Posted: 01/19/2012 - 6:21:34 PM
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No wasn't Santa, and thats minus 25/30 C, no trees to speak of, not sure of the sheathing, I would guess that its plywood not OSB, framing is most likely 2X10. Not enough snow up there to be causing it.
I have a ceiling fan and its forced air heat. It hasn't happened before or since, even with similar temperatures, which is why I was thinking it was a combination of the wind/cold temperatures.
I plan on doing the roof/sofits and facia in the spring so I'll be giving it a good look once I can get inside.

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Victoria, British Columbia
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Loud Noises from roof in Cold Weather
[#8] Posted: 01/19/2012 - 7:47:43 PM
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Built in interior BC in 1972, I would expect to see Shiplap or Plywood sheathing on the roof.
It isn't likely to be fasteners popping on a house that old, unless there has been recent upgrades.
I think it could be ice related. Are there icicles hanging off the eaves? (Living out here on the coast, I don't know nuthin about ice damming, but I know it's bad.)

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Loud Noises from roof in Cold Weather
[#9] Posted: 01/19/2012 - 8:48:17 PM
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I'd guess thermal expansion/contraction. Upper roof members getting cold and shrinking while lower, insulated members stay warm. I used to own a 1950s ranch that had loud popping noises most evenings in the summer. About 11:00pm it sounded like someone hit the framing in the attic with a hammer.
Garet Denise
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Grafton, Ohio
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Loud Noises from roof in Cold Weather
[#10] Posted: 01/06/2014 - 8:15:53 PM
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I also am having the same single banging/popping noises and they are rather loud and sporatic. They make me jump. They are coming from the roof truss areas in a ranch that was built late 80's. wood frame, no tree limbs, no heavy snow (2 inches maybe) or ice build up/damming. Temperature started in the 30s this am and has dropped to -10+ (almost 50 degrees) in one day. I think some expansion --contraction type problem is my best guess. It is a bit unsettling. Afraid the sky is falling!
Anybody have any ideas if something needs attention up there?

Walpole, MA
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Loud Noises from roof in Cold Weather
[#11] Posted: 01/07/2014 - 02:47:21 AM
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My deck does this in these extreme conditions....... thermal expansion and contraction... can really startle you if its in the dead of night..
'don't assume anything'.. period..
   
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