Most cost effective method of framing a longish shed style roof
DaveNohio
| Posted in Construction Techniques on
Trying to do as much homework as I can before handing it off to my architect. The more I have “figured out”, the less he will charge.
What I’m looking for help on is the most cost effective way to frame a single plane (shed, skillion) roof over a 16′ by 32′ room. The pitch will be 3:12 sloping up over the 32′ length. We were hoping to have a flat ceiling parallel to the roof. But open to having a beam or 2.
Not looking for beam/truss sizes. Or even joist sizes. Just looking for a consensus on what would be the most cost effective method. The architect can take it from there when I hand him my plan.
Any and all thoughts are very much appreciated.
Replies
Cost effective includes a lot.
Starting with what your snow load and wind issues are.
Then is this a room added on to an existing house? or part of a new build?
Will there be an overhang, and how much of one? How many sides?
Does the room adjoin an existing wall? in which direction?
Will there have to be room for utility or HVAC equipment between the roof and ceiling?
I have a gut feel that running single members (likely some form of engineered framing) the long way will be best overall, less parts, joists square to sheathing and drywall,
Why not let the architect weigh in?
I'm sure the architect will weigh in. Along with his engineer. I'm just trying to save a bit on their fees by having a good portion of the work done. They'll fine tune it for said fee.
To answer some of the questions you posted. This will be a new build and the room has additional rooms along one long side only. So, 2' overhangs on three sides.
I haven't as yet dug in to snow/wind loads in southern Ohio. But hearsay has it that I'm in an area that is 40psi snow.
And for HVAC, that will probably be under floor. But that could change.
Is there a reason not to slope the roof the short way down from the adjacent wall?
After more research and thought, I believe I'll just leave that whole area for the pros to figure out. It'll cost a bit more. But I won't be adding to the many grey hairs I already have. The Mrs. will just have to go without that antique porcelain bath tub with gold fixtures she was dreaming of. Ha!
Dave,
Well that didn’t take long.
One question if you’re in SW Ohio.
Have you ever taken a trip on the Donut Trail?
https://www.travelbutlercounty.com/blog/post/complete-donut-trail-one-morning
Calvin...
Lived here all my 54 years and I've never heard of that. But in my defense, I'm 100 miles or so east of that area.
Near Hocking Hills?
Well, if you like donuts…..
There’s this trail of donut shops ….
We‘ve only made it to Holtman’s, exit 19 on 75……
Closed Mondays.
Evidently you can get a passport to get stamped by each independent donut shop. What you get when you fill that card?
Probably just another hole in your belt.
Since retirement we’ve traveled a lot and camped in many great places. There’s many wonderful things to see that we never saw before.
One thing I’m sure of. If I don’t see it soon enough, I turn around. And if there’s not enough room to park the long van, I find a place and walk.
edit: the donut shops included!
Athens is about 40 minutes away. I looked at the link you posted. Seems you get a free T-shirt if you make it to all 12 locations.
As for the "didn't take long", Uncle Mike's questions got me to thinking there's a lot more to this roof to consider. Stuff that really needs someone trained to really figure out what's best. I had some engineering in college. But that was 30 years ago. Even worked for a couple years for a fairly large engineering firm in the structural department. Darned if I can remember any of that stuff though. Of course, they mainly did steel structures at the time.
"I'm sure the architect will weigh in. Along with his engineer. I'm just trying to save a bit on their fees by having a good portion of the work done. They'll fine tune it for said fee."
Their fee(s) are going to be based as much (or more) on their risk exposure rather than on how much they have to figure out. As an engineer that's my take on how I determine what the fee is going to be.
True. I know they aren't going to do it for free. And that was never what this discussion was about. But I do have a budget. So, anyplace I can save some money, I'm going to. And one of those ways, as agreed on by the architect, is to do as much of the design as I can prior to turning it over to him. I'm pretty much done with what I can do at this point. I'll let him figure out the roof in question.