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What size joists should I sister to the ceiling to provide support after removing a wall near the rafter tails in this semi load-bearing area?

Asked by Orinder Patil
4 months ago
Last Updated: July 31, 2024

I posted a while ago about getting input on whether or not to remove an interior wall. After two contractors said it wasn’t holding anything up, we started taking it down. Now I’m starting to worry that maybe it was kind of holding something up. The roof framing doesn’t seem to be connected to the interior vault. I’m not totally sure what that means, but I don’t think it’s super important to the overall framing of the house. The only thing that wall was holding up was a fake beam and some ceiling drywall. The beam is just for looks and to support the rafters holding up the ceiling drywall. Under the trim, the beam is just two 2x8s.

I’m thinking about attaching some 2x10s or 2x12s to the nearest ceiling joists to give some support where the wall used to be. Do you think that’ll be enough, or should I go with an lvl beam?

The span is 14 feet.

I’m trying to figure out how to fit a 2×12 or 2×10 near the end of the wall by the rafter tails. How much material can I take out of that area? It’s marked in red in the

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Vincent Rashid

It looks like you already have some beans running along the roof line that could be strengthened with a truss system. By placing a temporary support post under the central beam at the peak, you could eliminate all the vertical 2x4s in the plastic sheeting area and create a truss system that connects to the existing beams on the ceiling – without the need for a large horizontal beam. I’m not a structural engineer, so take my suggestion with a grain of salt.

Vincent Rashid

Another benefit of doing something like this is the ability to easily slide larger items into that space for storage instead of just closing it off with drywall

Vincent Rashid

Just ensure all work is done on one level and avoid attaching to the front, use metal truss plates similar to those in prefabricated units

هستی پارسا

So, if I understand correctly… I would double up some 2x10s to create a beam at the bottom of that gable end. You could attach it to the face if you don’t want it below the ceiling. I’d also add posts next to the outer wall for extra support. It sounds similar to what I’m doing in my own house – adding an lvl ridge beam and turning it into a full vault. Just make sure to follow the recommendations.

هستی پارسا

Taking a look at this picture, I notice a vaulted ceiling… without any visible ceiling joists. I’m wondering how they managed to construct an internal gable end without proper support underneath. So, I would recommend adding support where I marked in red.

Laura Amador

It’s hard to determine much from just a picture. Two contractors said it’s not load-bearing. A load-bearing wall supports the structure of the house, while other walls just separate rooms. The center beam should run from gable end to gable end, connected to a post system for support. If you’re concerned about the structural integrity, consult a structural engineer for a professional opinion.

Laura Amador

Hey, , do you think this wall might be supporting the faux beam? Or is it attached to the structural beam holding up the roof? If it’s the latter, you probably won’t have any problems, but again, I’m just basing this on one photo. The best way to know for sure is to have a structural engineer check it out or trust the contractors who have inspected it in person.

سپهر حسینی

Adding a double 2×10 or double 2×12 horizontally across the entire span is a solid plan, especially considering there is no roof bearing. The drywall and ceiling weight could cause sagging over time.
Make sure the member you add has at least 1-1/2” bearing on your stud top plates, but aim for the full 3-1/2” if you can.

سپهر حسینی

Of course, make sure to include extra studs at the ends of the walls beneath the new double ceiling joist

Sebastian Hansen

Oh no! Do you experience snow or strong winds in your area?

Gaël Marie

If there are trusses above the finished ceiling, the weight is supported by each truss. For safety, check the current “webs” and add more if necessary. You can also walk on the roof to see if there is any movement in the finished ceiling.

Urbana Campos

When it comes to the relationship between a roof and an exterior wall, there are different forces at play. For instance, there’s the downward force from the roof and snow load during winter. Additionally, there are forces pushing outward on the bottom of the roof joists, exerting pressure on the external walls. This is something worth considering.

Gerolf Manke

I think the scissor vault beam might be fake…do you know if the roof is supported on the sides?

James Mccoy

Hey, quick question: Do you know which direction the ceiling rafters in the room at the back, under the lower ceiling, run? Left to right across the photo or front to back?

Benjamín Pedroza

You know, maybe it would have been better to hire a structural engineer for $400 instead of asking contractors. That way, you’d have a professional sign off on a recommended procedure and be insured for mishaps.

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