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[SEAOC] Re: [SEAOC] Plywood over spaced sheathing

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In addition to plywood sheathing over spaced boards, did the owners also switch from wood shake roofing to concrete tile roofing?  If so, the added dead weight of the heavier roofing may be causing the nailed connections to "reset" after humidity/temperature seasoning.

John Rose/APA, Tacoma, WA

>I inspected a residence today that had plywwod installed over spaced
>sheathing.  The owners have reported hearing "loud popping sounds".  I
>entered the attic and my inspection revealed nothing.  
>I believe the temperature of the attic may be the culprit.  There are only a
>few attic vents in the stucco soffits.  I plan to recommend that an attic fan
>with a thermostat be added to control the temperature.
>Anyone out there with an opinion?