What type of framing is this?

1

I have never seen this type of framing before, I Inspected a 1950’s House in Illinois today and ran across this framing. At first I was thinking it was a Kit house but the basement framing was not consistent with that of a kit house. The framing materials were in good condition and it has had new roof sheathing installed. When walking the roof it was stiff/no flex. Nothing wrong here, I am just interested in learning a little more about this framing technique for my own knowledge. If anyone has anything they can share I would appreciate it. Thank you in advance.

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Truss and purlins. I see this in 1950’s houses that I inspect now and then in a company built town near here. Purlins are usually on top of the trusses in my case. Trusses spaced at 4 feet O/C.

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3

I don’t know if the style has a specific name but I’ve seen it a few times before. Fairly common on pole barns as it sets up the metal roof panels to be fastened easily to the horizontal boards.

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I hope there is a load bearing wall under the center, providing support where those diagonal queen structs land. Those struts are under compression. No king post on those trusses, which is the member that is under tension, thus resisting the compression of the queen struts. A load bearing wall will have to provide the function of the missing king post.

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5

Thank you, I appreciate the information.

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There is, the beam goes to the outer edge of the struts.

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Thanks for the info, I have seen similar on outbuildings and pole barns just haven’t seen any with the separation in the framing and the purlins installed that way. Also, the two ridge boards were something new, never seen that outside of a modular home.

8

By the different colors of the lumber, the original being the darker, it appears to have been a standard stick built hip roof that was modified. This configuration transfers additional roof loads to the remaining roof rafters, however they added bracing to reduce sagging on the roof rafters.

I have never seen this before and my WAG is there were some issues with the original roof, but whoever made the modification appears to have knowledge of the load path with the added rafter bracing.

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