Identification is simple enough by checking the attic. No bearing walls are necessary during or after the build.Īnd as Joe mentioned, they should not bear down on the interior partitions. Typically engineered truss design can clear span using 2x4 top and bottom cord until the span reaches about 40’Ī wood truss is designed to free span the width of the home without intermediate support. Most air handlers only weigh about 200#‘s and are generally supported by 2 truss members the loading is minimal. As too the air handler the original construction drawing would have to identified the attic location and would be accounted for by the truss designer. with all of that said a 27’ span is relatively short for an engineered truss system and i would be surprised if you have a mid span support. if it is a load bearing wall it will have two top plates. If the home is slab on grade go into the attic and pull back the insulation to identify if the wall that you want too remove has a single top plate or a double top plate. Simply look in the crawl space or basement to identify the presence of a mid point stem wall or piers (crawl space) or bearing wall under the wall above (basement). Bearing walls that are carrying a roof load must transfer that load to a footing. Identifying if the wall is load bearing is an easy procedure. I am just worried that if I take the wall out, with the weight of the indoor unit, the truss would not support that weight. When I take this wall out, Do I need to put a header beam in its place? This unit is just about in the middle of the house also. In the attic I have a indoor heating unit that goes with the outdoor heatpump. The wall is 10’ long and is in the middle of the house. I want to take out the wal between the dining room and kitchen. Get a PE or if you know where the Trusses came from they truss co can take a look at it for you in most cases at no charge!! If you trusses are all 2x4 then you have additional problems, they were not designed to carry the HVAC at all!!!:shock: Most truss companies will do one of two things, 1- make the HVAC truss with a 2圆 or greater BC or 2- leave the BC the same size and stack another chord in the center panel to strengthen that area for the additional load. Check chord sizes and plate sizes on both sides of the HVAC, They may be larger. If the answer is no then you know that there is a good chance that they are dependent on that loading bearing wall. HVAC, take a look in the attic and see if these trusses are different in configuration than the rest. If you still have them then you’re golden! The engineering drawings if you didn’t toss them contains all the relative information to accomplish what you are wanting to do. BUT the HVAC being in the attic complicates matters a bit. But with a little investigation you can do some checking to get a better understanding of the roof structure.Ī 27’ span is not all that long for the truss designer to have designed your Roof system to be clear span, IE no internal bearings!. The best thing you can do is definitely Hire a local PE.
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