All 2x6's have some bow to them so your calculations might show they work in compression as "straight" members but if they have a bow - second order effects may change their capacity significantly.
Using LVL's where they can get wet in a rainstorm also is cause for concern.
A small steel...
There have been projects where I walk in under a completed deck and see stars of light everywhere....i.e. burn-through welds.
That said we also typically spec welds/screws/PDF's as options - ensuring that the required diaphragm stiffness and strength is equivalent.
The ASCE 7 was originally based on the ANSI A58.1.
Here's the abstract for ASCE 7:
I have an old ANSI A58.1-72 in my storage boxes somewhere - Not sure what the original issue of it was but generally before ASCE 7 started getting "serious" the UBC, SBC and BOCA codes all simply incorporated...
Hot spot in Santo Domingo full of people and the roof suddenly comes down.
Story here: https://nypost.com/2025/04/08/world-news/at-least-13-dead-when-roof-collapses-at-popular-dominican-republic-nightclub/
Quick Instagram video of the collapse here:
ICF vs. CIP differences?
To me they are structurally the same thing - reinforced concrete walls. The insulation is just a stay-in-place form.
In many cases a small (48" wide) opening like that can successfully arch if you have enough concrete wall above the opening and on each side.
You can also extend horizontal panels of insulation board out from the bottom of the exterior footing some distance – say three or 4 feet. This is common practice when trying to insulate the perimeter, shallow footings against Frost heave. The idea is that the built-up heat under the house slab...
Public welfare and safety.
A facade can certainly blow off in a storm and crush the little innocent peoples below.
You know it doesn't meet code (at least I assume you do).
Only other option would be to satisfy GC#2 with a letter outlining ONLY what they did.
Then add a second letter...
If you don't need the sheathing to transfer lateral loads to a shear wall below - the only reason to do it would be temporary during construction.
Once all the roof sheathing is in place, the "whole" of the roof system would probably be quite stable - assuming a hip type roof perhaps.
One other thing that is important to realize if you are trying to compare older UBC wind designs to current IBC wind.
The UBC used a "fastest mile" wind speed vs. the current 3 second gust speed.
For the middle part of the US, this equated to a 70 mph wind vs. a 90 mph under the 3 second gust...
The 1991 UBC used "Occupancy Categories" rather than "Risk Categories".
Essentially the same thing but the nomenclature was changed to avoid conflicts with other language in the IBC.
See the attached table from the 1991 UBC. This shows the various required importance factors used.
The code you...
