See that short, horizontal board at the top of the roof in the diagram to the left? That is a collar tie. Pretty unassuming, right? But that little board keeps a rafter style roof from twisting and moving too much.
A roof system takes a lot of stress, movement from itself, from the rest of the house, temperature changes, snow loads, and so much more. That small board takes quite a bit of that stress and helps keep our roof from sagging.
The reason I bring this up is that many times on home inspections I see this framing member removed from roof trusses. Often when there is a sag in the roof, I find the collar ties missing in the attic. It is often just a matter of a home owner or a contractor trying to make head room in the attic. Be sure to leave these framing members in place and in good condition
Questions? Get in touch!