Sloped Deck Framing w/ Steel Studs
I’m familiar with the sloping of framing to allow a porch deck above when framed with wood. The joists are angled to allow for the slope, while the underside stays level. Sleepers and decking can be added above for a level surface. This has been detailed in an FHB article from a few years ago, among other places.
I’m less certain how this is handled with steel stud joists. Can’t exactly draw a line and cut them lengthwise. I do have room to slope them from one header to the other, but that leaves a sloped ceiling beneath.
What are standard practices for this kind of thing with steel studs?
Replies
You understand the concept quite well. You're just in wood thinking mode.
As you stated, with metal joists, the joists are sloped. So, if a level ceiling below is spec'd, you need to drop one side. You can easily do this by sistering metal studs to the metal joists, lengthwise. If the run is longer than the stud length, you will need to drop a few legs down from the joists and maybe even incorporate a strong back.
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OK, I get that...sistering joists. Seems like a bunch of extra material, but if that's typical, I Understand it.With research, I'm seeing a bunch of references to tapered insulating decks. Install the joists level. Add structural roof decking. Over that goes a tapered rigid insulation. Then overlayment and roofing materials.Anyone have experience with this?Any difference in doing this for a deck meant for people vs a deck that is simply a roof system?