It isn't uncommon in Central Oregon to find that a lot of homes suffer from poor ventilation in the attic space, that can result in secondary damage, such as microbial growth or staining from microbial growth.
SERVPRO of Bend was called out to this residential property in Redmond, OR when the owner noticed that one side of their home had clear plywood on the inside of the roof material but the north facing side of the interior plywood was covered in black.
SERVPRO of Bend technicians went into the attic and metered the north side of the roof material and found that it was not metering wet. However, the attic space was stuffy, and it felt as if there was not adequate ventilation.
After calling a roofer, the homeowner realized that the attic needed more vents. Once the roofer completed the installation of new vents, SERVPRO of Bend was called back to remove the staining.
After spraying the affected area, the result was a clean, almost new looking plywood on the north facing side of attic interior.