Okay, now that I've learned a lot about my attic, another question came to
On the subject of collar ties, why would they not be put on every rafter?
Reading a bit online about this subject I came across the references about
how some codes mandate 4 feet between them (approximately every other
rafter). Why would having them on every rafter be a bad idea? Seems like
putting them on all rafters would do a lot toward strengthening the
4' is every third rafter. Where they came up with the rule of thumb
for a collar tie on every third rafter, I don't know. They are
structural - in another post you mentioned that you didn't think they
are. They're there to take the spreading force that the inclined
rafters would impart to the opposing walls. Hence - ties. There's no
problem having them on every other or every rafter pair.
The weird thing is if you engineer the required number of fasteners on
a collar tie you'll be surprised at the number of nails you need, and
you _never_ see that many nails in old time construction, yet they
still seem to do the job.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.