Roland --- Yep, there were huge holes in the roof for probably a decade or more.... There was a horizontal beam there, but our buddy explained they're more for nailing the wooden sides onto than for stability in a pole barn like this.
Depending on how the horizontal beam was fixed, it could be the cause of the rot. From the photo, it looks like both beams were lying in the same plane.
Wood is generally most vulnerable on the end-grain. So if the beams were fitted together be cutting a rectangulargroove in both beams and fitting them together, that would be a good place for rot to start, especially since the top and bottom surfaces of the horizontal beam would retain water when wetted.
Of course when you expect a structure to stay wet, it is usually built differently than a structure that is expected to stay dry like the frame of a barn.
Comment by
Roland_Smith
— Thu May 10 04:23:15 2012
Actually the photo shows a spot where 2 horizontal beams met together with a flat board running vertical between them. The flat board is mostly gone, and is what the side material bites into.
As an Amazon Associate, I earn a few pennies every time you buy
something using one of my affiliate links. Don't worry, though --- I
only recommend products I thoroughly stand behind!
Also, this site has Google ads on it. Third party vendors, including
Google, use cookies to serve ads based on a user's prior visits to a
website. Google's use of advertising cookies enables it and its
partners to serve ads to users based on their visit to various sites.
You can opt out of personalized advertising by visiting this site.
Depending on how the horizontal beam was fixed, it could be the cause of the rot. From the photo, it looks like both beams were lying in the same plane.
Wood is generally most vulnerable on the end-grain. So if the beams were fitted together be cutting a rectangulargroove in both beams and fitting them together, that would be a good place for rot to start, especially since the top and bottom surfaces of the horizontal beam would retain water when wetted.
Of course when you expect a structure to stay wet, it is usually built differently than a structure that is expected to stay dry like the frame of a barn.