GA-620 Gypsum Area Separation Firewalls
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- This animated video is intended to serve as an introduction and supplement to the Gypsum Association publication "GA-620 Gypsum Area Separation Firewalls." Understand the acoustical and fire-resistive performance benefits of these gypsum shaft liner systems. Visit gypsum.org to download a free copy of the document.
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My townhouse was built in 1996……does it have this type of separation wall?
Probably not. Most likely has two walls each having 5/8" Type X on each side with a 1" air space between the two walls. Those is how we built duplex and townhome walls back in those days. It was cumbersome because you had to build one wall complete with type x on both sides then build the other wall laying down and apply type x on one side, stand it up, then apply the final layer. This was a pain because of sequencing and also hard to protect the drywall while constructing the building. This shaft liner system eliminates those headaches.
@@ArtisanTony I agree with you. A fire rated wall has about 1” or a little more on either side of framing. A shaft wall liner system is a way to get that when access might be poor. It could eliminate building staging in an elevator shaft, for instance. We often used it for duct shafts. Many shafts are relatively tight and not surprisingly, access to the inside is limited. The system works well there. The only hassle is that there was not a huge amount used on the jobs I did. I remember there would be plenty of regular Sheetrock and studs but I would have to obtain the shaft wall specific to that job and that particular schedule.
@@markkillion8980 Right, shaft walls are rarely used in residential projects because of what you mentioned and most developers don't want to pay the added cost for our convenience :)