车库烟雾
Jack Woolfe| Posted in一般的问题on
I am planning a small air-tight house, which I was thinking of ventilating with an exhaust-only system. However, I also want an attached garage. I’m concerned that the negative pressure in the house may draw unwanted fumes in from the garage. Are there any recommendations for supplying make-up air to the house so that there isn’t negative pressure in the house, or perhaps a well-sealed door between the house and the garage? Any other ideas, besides a HRV system or a detached garage?
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Replies
I've been using the humidity sensing intakes for several years with very good results.
http://www.conservationtechnology.com/building_ventilation.html
Seattle code requires a fresh air intake of some sorts in each of the bedrooms.
If possible, install a big cfm fan that goes on whenever the garage door is opened. Let it run about 20 minutes thereafter, using fresh air make up specifically for the garage. Also, have your people door to the garage open into the garage so any neg pressure in the house tends to draw the door closed.
杰克，
如果还为时不晚，请考虑一个独立的车库。即使是用短微风连接的车库也比附属的车库更安全。
Thank you, Peter, for suggesting an occupant-sensing ventilation system. Can anyone else who's used the Conservation Technology system recommend it?
约翰，good idea about the ventilation fan and having the door swing into the garage.
马丁，您必须强烈反对独立的车库。我真的很喜欢车库和房屋互相庇护和温暖的想法，共享墙的共享意味着更少的基础，框架，屋顶和覆层。当然，想找到一种让我的蛋糕和吃的方法。
杰克，
I built my home with a long tandem attached garage along nearly all the cold northern exposure, with attic above. The savings in materials and energy help to green the whole, if having a garage at all can really be considered green. I also turn off my Prius when its in the garage so any fumes are very temporary and certainly don't approach dangerous levels. The garage is totally sealed from the living space, 5/8 fire-rated drywall, fireproof steel entry door, etc.
On the other hand if you are a fan of remote starting cars I'd go with a carport. If your memory is like mine you might start it and forget it. My CRS* syndrome is getting worse every year.
*CRS (can't remember sh**)
我发现，使用混合动力汽车，我们可以退缩并在燃气发动机开始之前关闭头顶。
普锐斯？来吧，您不足以努力。
It amuses me how many people have such strong feelings about their attached Garages and or Basements.
I thought Martin was kidding when he justified his basement with his "bucket of drywall mud" reasoning.
看着索斯滕的一张来自阿拉斯加的照片。
It seems that Thorsten's homes do not have attached Garages or Basements
Sure enough...there it is...... THE BUCKET OF MUD
Green? Whose talking green? I'm mostly interested in avoiding white -- as in white fingers when working on my car in the winter! ;)
约翰，
Completely serious. I need a basement for my mud.
"I'm mostly interested in avoiding white -- as in white fingers when working on my car in the winter! ;)"
I sympathize - up too a point - but it doesn't sound very smart or effective to rely on leakage from the house through an inadequately insulated common wall to heat your garage. It's only leaky homes that have made attached garages an acceptable arrangement. Tight homes demand a different standard.
Some of Thorsten's homes have attached garages, but I don't know if these are older models, or current stock. Seehttp://www.reina-properties.com/forsale.html. After 37 years up here w/ neither an attached garage nor an HRV, the new house will have both. The garage may end up being cold storage, but I think we'll be fine if we pay attention. James M: I would guess that tight homes w/ HRV's would be less likely to get nasty gasses in them than drafty homes. No?
詹姆斯，我不打算依靠房屋泄漏的热量来加热车库。除非我具体加热，否则车库将很冷，只是在暴露于天气的四个墙壁上而不是三堵墙的情况下不像四个墙壁那样冷。同样，房子的一堵墙会更加温暖，因为车库会被车库缓冲。
约翰，it sounds like a very good idea to use 5/8" sheetrock in the garage, and a steel fire-rated door between the garage and house. I've never heard of a tandem garage. Do you have a garage door at each end?
A passive air inlet somewhere in the house- an easier path for incoming air than leakage from the garage. Better to know where the air is coming in, even if it's not from the garage. A well sealed door between the garage and the house is not just a good idea- it's required by code.
edit for product info: I'm sure there are plenty of mfgr's of passive air inlets, one that I have bookmarked (not affiliated with) is American Aldes. Ask your HVAC contractor for recommendations too.
有一些有关此连接的细节Energy Star Air Sealing page,sections 1.2 and 3.1 specifically.
John is correct - I am not a fan of crawlspaces or even worse attached garages. I build plenty in my career and have been ignorant about their problems until I started to educate myself. Email me if you like more information; I have a write-up "Sealing Garage spaces in our homes" which goes into this problem and offers some solutions.
In a nutshell: Garage spaces in homes introduce deadly pollutants: Hydrocarbons in form of Benzene and Carbon monoxide.
The only way to keep any of these dangerous pollutants out of your house it to detach your garage from your living quarters. If this is not an option, I highly recommend that you educate yourself about the long term health effects from exposure of these pollutants on our human bodies. A lot of research has been done and can be goggled. Once you understand the problem the steps to take to minimize risk of exposure will not seem so excessive anymore and make more sense. There are really no shortcuts to take...they don't work.
• Meticulous air sealing of any adjoining walls and ceilings from the garage to the living space
•用相邻的空间最小化穿透（无电面板等）
• Air tight door installed swinging into the garage, ensuring a good seal once the house part goes negative (kitchen exhaust etc)
• Before the walls are closed air sealing needs to be tested for leakage with a depressurization test (blower door)
•车库空间需要一个专用的排气系统，该排气系统通过运动传感器积极通风和激活，并被绑在车库门开启器中。
Fresh air is a necessity for all life and good air quality is imperative for our well-being.
PS: Pls ignore my ridiculously outdated web page which has not seen an update in over 6 years. One of these days...
Thorsten, here I go hijacking my own thread, but I was wondering why you don't like crawlspaces? Is it just because they are difficult for a builder to work in? Or is there a problem with them unique to your cold climate? Or something more fundamental?
杰克，now why don't I like Crawlspaces? You're talking to the Guy who looks and studies the heat loss and thermal bridging from plumbing stacks though roofs and foundations...
他们是令人难以置信的能量猪和经常on top of that a source of many bad pollutants, heated conditioned space which is never really utilized, expensive to build, expensive to maintain and bad for your indoor air quality. In my opinion they are fundamentally just wrong and should be avoided altogether.
Completely serious. I need a basement for my mud.
由GBA顾问马丁·霍拉迪（Martin Holladay）回答
发布Mon, 03/14/2011 - 20:46
Common Martin....you could have built a mud room instead of a basement.....how much mud does a person need? 8-)'
Tim,
我有一个寄存室,我很高兴我拥有它。这是给mud from my boots, not for sheetrock mud. It's on the north side of my house, and it freezes, so the sheetrock mud goes in my basement.
When it's 20 or 30 degrees below zero, mudrooms freeze, unless you want to dump heat into them. I don't.
只是抽搐你的链条马丁...播放言语...“泥房”
Martin,
you did not exactly answer Tim's question
"How much Mud does a person Need?"
我想说普通人可能不需要存储“太多”的泥浆。
How much do you need to store and what do you use it for?
Have you thought about buying it in powder form and adding water as needed?
I think he hoards mud....
Thorsten，如果您关心的是从管道堆栈中桥接的热桥，那么您一定要关心烟雾管/烟囱如何穿透天花板和屋顶。您发现的最佳方法是密封管道并通过传导烟囱材料和烟囱中温暖空气的对流来限制热量损失的最佳方法？
杰克 - 请考虑廉价中央风扇集成供应通风。我还发布了4月4日的文章。
杰克，我很高兴您也询问通风的化妆空气侧。我很高兴分享我的解决方案。我想获得受控的新鲜空气24x7以及略微阳性的气压，以帮助室内空气质量。一路上，我了解到HRV不会添加供应化妆空气 - 它们只能取代他们所取出的东西。我发现这篇GBA文章非常有帮助：“设计一个良好的通风系统：通风很容易 - 通风很难（能量书呆子的沉思，马丁·霍拉迪（Martin Holladay），2010年6月15日）。它帮助我验证了一个决定中央风扇集成供应（CFIS - 我的缩写）的决定。我发现了非常好的信息，以及建筑科学公司（BuildingsCience.com）的寒冷和温暖的CFIS方法。GBA员工与BSC员工合作提供超级合理的建议。查看RR-0304：中央风扇集成供应通风 - 基础知识。那里还有其他文章 - BSC搜索栏效果很好。 I chose the Aprilaire 8126 ventilation controller/damper integrated with an Aprilaire dehumidifier, but there are other installation options. For apples-to-apples comparison, the 8126 is $100+ and installation of insulated ductwork and integration into my HVAC was an additional $300 (in Sept 2010) for my new home. CFIS brings fresh air into your return air plenum for mixing by your existing HVAC system. An important requirement is a high-efficiency ECM variable speed blower on your furnace. Make sure your heater choice has an efficient exhaust blower motor too, since both are running when venting, heating or cooling. Ventilation demand calls have to be calculated and programmed via your thermostat or other HVAC control method. I may find that I still want an HRV in the future. But for now I am very happy with a thermostat setting of 70 F and initial natural gas bills of $66 in January and February 2011 in Cleveland (for heating 3400 SF first, second, and basement plus gas cooking, and gas dryer).