My boss likes to run what he calls “plumb cut fascia.” But I am under the impression that what we run is actually square cut fascia (or whatever the proper term is). We just square cut all of the rafter tails so that the fascia hangs perpindicular to the plane of the roof. So I have a terminology question…
Is plumb cut fascia the fascia that is run on rafter tails with a plumb cut on them. For example, if you have a 6/12 roof and you cut a 6/12 on all of the rafter tails, that is plumb cut fascia?
But the root of the issue is that I feel that the way I was shown to run the fascia is inefficient.
I did some searching in the archives to find trig formulas about the hip/fascia angles and bevels but they were embedded deeply in some pretty deep BS between a few guys.
How do some of you guys run this type of fascia? BTW we don’t run a subfascia and use 2×6 roughsawn cedar.
Thanks.
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YHowdy young'un. I was intriqued with your screen name because I once had a big Ford N-type cabover that I named the Blue Moose. Then when I clicked your profile info, I see you are in Gainsville. I used to live there for about three years. i've been on a few hundred of thsoe roofs you drive past. I stoped in last year and saw that it had grown about 50% since I was there last. Bet it is still hard to drive down University Ave in the warm waether and keep your eyes on the road though.
Anyway - a plumb cut rafter tailis as you describe and your boss has questionable verbal abiulity. Plumb means the cut is parralell with a plumb line dropped to the ground - the same line a drip of rain follows. When teh tails are cut square to the rafter, they are called square cut tails.
Details about how to run fascia is widely different according to whether you have open rafter tails, soffit, classic trim, FHA approvals, etc. It sounds like you are working on something more rustic with exposed rafter tails, and the fascia is square cut 2x6 on a 2x4 rafter. That is about as inexpensive as it comes.
The other conversations on hipdrop etc, is sticky when you have hip roofs instaeadof gabkle ends, and with differeing roof pitches on the same roof.
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You aren't kidding about University Ave.! I can recall many times when I've been punched in the shoulder for turning my head in a direction I shouldn't have. But I'd be lying if I told you it wasn't worth it.I've only lived here since last August when my girlfriend was accepted here to get her M.F.A. in poetry. (I always joke about what silly people we are, the wannabe carpenter and the poet.)We use aluminum soffit which comes comes off of the fascia at the bottom of the 2x4 truss rafter. The entire roof is 6/12...in fact we've already run the fascia on two houses. I can do it; I just know it can be done better and faster. I'm curious about the bevel and the angle to be cut on the hip rafter tail and the fascia at that point as well.Blue Moose was the name of a cool painting my Dad picked up in Sturgis.
The brief answer for framing hip roofs is that when you use the framing square to set the cut line for a 6/12 pitch, use 6/17 for the pitch of ####plumb curt one a hip rafter. Same for any pitch. Change the 12 to 17 IF IT IS A TRUE PLUMB CUT.But you also have a factor called hip drop. your heel cut is based on height above plate - HAP of the common rafter. on a 6/12, that requuires about 7/8" drop. This is because the HAP is really figured to the theoretical center of the hip rafter. If you were to roip a bevel on the hip, you would measuere the samer HAP to the top of the bevel point, but in reality, few of us bevel rip[ those hips and jhust calculate so we can measure to the side of the hip rafter which is a lesser measure than irt would be to center top of bevel. Clear?
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10-4.But my real question deals with the fascia angles and bevels...With square cut fascia, the bevels aren't 90 degrees and I wanted to know if anyone had the formulas that would allow me to figure the bevels and angles for the outside corners on my fascia.You did clear up some fogginess on HAP though; I've never had to cut a roof...only truss jobs.Thanks. What brought you to Gainesville when you lived here?
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