Discover the intricacies of interior wall types and sections drawing and how it's vital in architectural planning. Learn how to decipher the graphical representations and legends to understand the wall type, fire rating, stud size, description, acoustical rating and other labeling information.
Key Insights
- The article provides a detailed overview of the interior wall types and sections drawing, teaching how to read and interpret different elements like wall type, fire rating, stud size, description, and acoustical rating.
- The article highlights the significance of different graphical cues such as dashed lines to indicate a metal stud wall, the letter X for blocking, and wood grain to depict wooden sections. Different call-outs and notes are also crucial for understanding specifics of the entities within the wall.
- Detailed explanations about the difference between a one hour rated wall and a two hour rated wall are provided, emphasizing the role of layers of gyp board in increasing the protection and fire rating of a wall.
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Let's spend a few minutes on our next interior wall types and sections drawing. Again, I'm going to look up here in the interior partition legend, and you can see they're reiterating what we saw before. Here's the legend, pointing to a wall, designation for wall type, fire rating, stud size, description, and acoustical rating, and all the information is labeled there.
I'm going to back off a little bit. Here we have a wall type header under joist and a header adjacent to an eye joist. So again, when I look at the drawings in here, do you see the little dashed lines that are there? That is a graphic way of letting me know that I have a metal stud wall.
You can see this is where screws would be, where they're attaching the two pieces together. They have it well detailed. You can see there's a Hilti firestop spray over mineral wool bat per a specific detail.
When I look up here, I see the X, which means blocking. I see the wood grain in through here. So this is showing me that up here, I have wood and wood.
Down here, I have metal. They're calling out the number of layers of gyp, 5-8s type X gyp board, and type X means fire rated gyp board. We have a two-hour rated assembly right here.
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Many notes that are calling out the specifics of the entities within the wall. You can see different kinds of hatches that represent different materials, a call out for a glue lamp beam, sheathing, roof framing, the roof over the cover board and rigid insulation. Here we have more details.
You can see that there's the reference right here to the grid lines of the building, and there's an enlarged detail right here, which would be image B2 on sheet A413. Similar to what we saw in the other drawing, we have the wall heads perpendicular to joist. So again, here are the joists coming at us.
You can see that there's a wall in through here. Here again is the top cord of the joist, which is this part up here and here. I have the bottom cord here and here, and you can see they're calling out for the continuous fire stopping material.
Here we have other drawings similar to what we had before, where we have a base, a planet intersection, a section, and the head detail. I can look up here, and you can see it's referencing details. Again, here's the section, the lay-in ceiling, a gyp board ceiling.
Again, the plan view showing how this wall dies into this wall, and then the base conditions. So that's for a one hour rated wall. This is a two hour rated wall.
The big difference is the number of layers of gyp board. You can see over here, it's calling out for a 5 8th inch type X gyp board, and then see the finish schedule for material finish. And then you have the note over here for two layers of 5 8th inch type X gyp board.
So again, more protection on a two hour wall than on a one hour wall. And that's a pretty good overview of this drawing. Please spend some time looking at the PDF.
The details are really terrific. And now we'll go on to our next drawing.