我是否需要在我的公寓的阁楼中保温共享墙？
Luke Savoie| Posted inEnergy Efficiency and Durabilityon
Hi Everyone!
I’m in central Mississippi (Zone 3). I have an unconditioned attic.
我已经完成了空气密封我的阁楼。我清理了山脊/拱门通风口，然后放置了预先形成的频道，以便我的阁楼内的通风是合适的。我还在我无条件的阁楼里修理，密封和绝缘HVAC管道（是的，我知道）。我准备将绝缘材料带到其适当的水平，松动的填充吹入。目前我有4英寸的岩棉（1973年送回回来）。
问题：我在双方的阁楼里有共用墙。该材料似乎是某种板材的材料。它说“格鲁吉亚太平洋中间鞘”。这就是我可以做出的。它看起来像一个坚实的黑板。这是将我的阁楼与邻居的阁楼分开的全部。我已经密封在板材的边缘等。
问题：
1. Will this dividing wall be enough to keep my neighbors’ hot attic air out of my attic?” If not, then what do you recommend I do? Insulate on my side of this board material? Something else?
我知道我需要一个防火墙。我也可以做一个防火墙并覆盖我的绝缘问题吗？
Thanks!
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Replies
If you're insulating at the attic floor there is no need to insulate the partition walls between your space and the neighboring attic.
If you are insulating at the roof instead of the attic floor, insulate the partition walls.
如果分区墙是螺柱两侧的沥青纤维板，则可以在腔内吹纤维素并称之为一天。如果您想要一个“额定装配2”（R13）粘合到带有泡沫板施工粘合剂的纤维板的射击热带，而且具有帽螺钉的螺柱的纤维板可能是足够的。
The original fiberboard SHOULD be air-tight (but probably isn't.) It's probably worth air-sealing it and covering it with wallboard to better control fire spread issues even if you're insulating at the attic floor.
Any ducts or air handlers in the attic?
Luke,
如果“防火墙”，则表示多家庭建筑中附加单位之间的代码授权分离，请与您当地的官方或消防部门交谈。几乎所有的美国司法管辖区都清楚地说明了这一点的东西，而且我并不相信达纳的使用Thermax的建议是正确的。
我见过CMUS用于这种防火墙，两层5/8“干墙，但从不热的东西。毋庸置疑，防火墙分离必须在基础上开始，有时必须在屋顶线上延续。
谢谢你的回应。是的，压力室在阁楼里有空气管道。但是，位于壁橱里的条件空间中的其他一切。
我与当地建筑检查员交谈。我有防火墙的要求。就像你陈述马丁一样。由于某种原因（可能是公寓的年龄），在阁楼里没有单位之间存在防火墙。我会确保这取决于代码。
Honestly, my main concern was having all of my repair and insulation work go to waste if my neighbors' attic air was coming into my attic.
Luke,
您的管道和强制空气增压室在无条件的阁楼中是一种耻辱。但听起来你意识到这种情况并不是理想的，并且你已经决定（也许不情愿地）与管道一起生活。
达纳是对的：由于你的绝缘层在阁楼楼上，你不必隔离与邻居的阁楼分开阁楼的墙壁。每个人的阁楼都在夏天和冬天的寒冷会变热 - 你的阁楼和你的邻居。
Martin是正确的，它是它自己的Thermax不符合公寓之间防火墙所需的消防额定值，但只能足以不需要对泡沫本身的热屏障。（MEA CULPA-有点邋！）。
If the ducts & plenum are not perfectly air sealed the attic insulation won't do quite as much for you as you might have hoped, but it will still do a lot. The ducts themselves need to be insulated in an air-impermeable fashion if you intend to put fiber insulation over them, or condensation may end up wetting the fiber insulation during the cooling season.
很有点更多的钱,但是绝缘roof to bring the ducts inside of conditioned space is more effective, and would eliminate the duct condensation issue, since the humidity of the attic air would then track that of the house, not the outdoors (as it currently does.)
If you're still not convinced from an insulation standpoint about the walls think about it: you're insulating the floor so that in the summer the attic is hot but, on the other side of the insulation, your condo below is cool.
What will the neighbors have in the summer? Hot attics as well, so it doesn't matter.
如果你是北方气候，并且需要在冬天保持阁楼感冒，以防止可能是一个不同的故事的冰水。
All of this of course my semi-educated and still learning opinion:)
现在这一切都是完美的。
I will consider bringing the ducts into conditioned space. I'll post an update later on.
我不够衷心感谢你。
Luke, the problem with trying to make your fire separation continuous through the attic is that it needs the rated drywall on both sides, not just yours. Some multi-unit buildings have a shared attic with no fire separation because they have fire rated ceilings instead. It might be worth seeing if that is the case with yours too.
Nothing is built worse... than a condo.