通过强制空气系统加湿？
大卫·梅兰德（David Meiland）|Posted in机械on
4A区，5500 HDD 65。
我的一位客户称其3/4 x 2-1/4白橡木地板的季节性间隙。最近，我们的天气低于冰冻的天气，我一直在定期煮柚木以在我的房子里对抗。我看了看，差距超出了我想要的。他们有一个带有热泵和带状热备用的强迫空气加热系统，因此一种选择是在空气处理器上安装加湿器。空气处理器和大约一半的管道在通风的爬行空间中。房子是两个故事，木地板在主要起居区的楼上。楼下有几个地毯卧室，这些卧室的使用不多，并且在这些房间里关闭了寄存器。我见过的加湿器是带电气和管道连接的蒸汽单元，可能使安装相当昂贵。
对此类系统有任何评论吗？它们可靠有效吗？我可能会要求业主运行一个便携式单元一段时间，看看什么变化，但是他们有一个超史坦的房屋和一个坐在那里的加湿器长期不受欢迎。
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Replies
David,
I'm not a fan of humidifiers, which can cause more problems than they solve.
冬天太干燥的房屋几乎总是一个漏水的家。（问题是高空交换的速度 - 太多渗透干燥的室外空气。）
The best solution is air sealing. The best air sealing job is usually done with a blower door guiding the sealing work.
我将首先密封，绝缘和调节爬网空间以及密封所有管道。漏水管有可能导致驱动渗透的压力失衡，但几乎可以肯定，对于大多数浸润空气而言，开放的爬网空间是进气口的“端口”。
Of course, seal the upper ceiling as well.
A little more background on the house. I have tested it and air leakage is just under 7 ACHn. I got part way thru duct blasting but ran into a couple of issues and did not get a conclusive test re leakage to the exterior. I can return and finish testing when the owners hit the road, but they've been around for a few months and I hesitate to do this stuff with people trying to use the house.
楼上的天花板大部分高，是2x6 T＆G，带有烤面包和上方排气，因此这不是真正的气屏，这就是我认为大部分空气泄漏正在发生的地方。从上方固定它是一项巨大的工作，从下方修复它可能意味着要试图掩盖所有这些V-GROOVE，而不会丑陋。我需要做的是找到一个带有低光泽的木质填缝，并试图从内部偷偷地密封盖子。
I know that you are both right about dry exterior air as the problem, but for now I'd like to set aside the air-sealing angle. We have 2-3 months a year where dry conditions happen, and if there's a way to bump the interior RH a bit during those times and solve this problem, it may be more palatable to the owner. I am currently collecting some info with USB dataloggers around the house, and will go retrieve them later in the week and have some numbers to look at.
Martin, I assume when you say that humidifiers can cause more problems than they solve, you're talking about excess humidity? I'm wondering about condensation inside the ducts in the crawl.
David,
The solution to the problem of the ceilings is called drywall. Later, if they can afford it, they can always put more T&G over the drywall.
The danger -- especially in a leaky house like the one you are describing -- is that running the humidifier will lead to more condensation or moisture accumulation in hidden areas of the building envelope.
如果您的预感是正确的 - 我不怀疑 - 渗透空气正在通过天花板离开房屋，那么水分将很容易接触冷屋顶护套并形成霜冻或导致非常潮湿的屋顶护套。
半快的解决方案不是解决方案，尤其是当它几乎可以肯定会产生比解决的问题更多的问题时。
天花板不能用填缝剂拧紧，但需要真正的空气屏障 - 正如马丁所建议的那样，要么从上方泡沫或拆卸和更换。
如果业主不想为真正的解决方案付费，我会离开它。
大卫（David），品牌打屁股的新家，在承包商放手后，我去年冬天在整个冬天都在工作。在他们的大房间，T＆G大教堂天花板上的同一设置，用牛皮纸面对的玻璃纤维棒和通风沟钉在after子上。在阁楼上，从溜槽大教堂区域出现了微风的温暖空气。在屋顶上，雪融化，就像下面有火炬。有史以来最大的冰柱。
我让他们知道，如果他们希望T＆G保留下来，我将不得不完全重做它。没有。他们已经为房屋付出了太多的费用，看起来不错，已经完成了。加热胶带添加了冰柱，它们只是通过鼻子付费以供丙烷。
I can't even make sense of the situation. The cost of fixing this small error is just way too high for even myself to be for.
In my case, I was starting at $10,000 and realistically headed toward twice that. The area involved has two huge valleys and overall is a very large space. Not a pretty picture.
Caulking was my least expensive temporary fix idea. I was going to use Sikaflex. I have used it before by the box to build kit log homes which leak notoriously between logs, and in corners as they get a few years old and shrink down but not evenly, hanging up on fasteners an whatever.
Green? No. Nothing green about this particular home. Or Sikaflex. The expensive fix did include cellulose, taking down ceiling and reusing as much as survived the rip out.