我正在休斯敦建造一个砖房。
Is this wall construction plan sound? I have a 5 1/2″ brick ledge with the following plan: Brick -> Air Space -> Tyvek -> Osb -> 2″ by 4″ frame -> Blown Cellulose -> Dry Wall -> Paint. I am concerned about solar [vapor drive].
家庭详细信息：
休斯顿地点
口腔爬行空间
Ventillated Attic
Large 2nd floor space over driveway
Living area over detached garage
砖贴面
沥青带状疱疹
纤维素绝缘
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答复
罗伯特，
由于OSB是蒸气阻滞剂，因此您的墙可能会起作用。但是，考虑到您的气候以及您正在使用储层壁板（砖）的事实，如果您用1英寸箔脸胶合透明剂代替OSB，则可以更好地保护您的墙壁。当然，您的墙壁需要一个支撑计划来提供固定性。
是否可以在OSB上使用1英寸箔酸的聚异氰疗法？
我要问的是，该结构已设计为具有OSB/胶合板，目前无法更改。因此，我的选择是继续使用Tyvek和OSB或其他材料与OSB的其他组合。我只是想在与建筑商做出最终选择之前涵盖所有选择。
罗伯特，
是的，您可以在OSB护套的顶部安装铝面的聚异透明酸盐。请记住，如果您有泡沫护套，则切勿安装内部聚乙烯或乙烯基壁纸。
马丁，
谢谢您的帮助。我有最后一个问题是使用双面非固定箔辐射屏障房屋包裹的可接受的策略？还是多发生酸酸盐的绝缘材料在将OSB护套与箔中解耦中起关键作用？OSB内部的任何水分似乎都将通过交流或脱氧化剂去除。
The solar vapor drive of the brick has me pretty concerned. Houston gets wet, sunny, and hot!
罗伯特，
我不会用辐射屏障箔代替polyiso. The foil-faced polyiso does several things: in summer, it stops inward solar vapor drive. In winter, it raises the temperature of the OSB sheathing, lowering the chance that interior moisture will condense against the cold sheathing.
辐射屏障箔不会升高护套的温度。如果您使用辐射屏障箔，则墙壁可能会出现冬季冷凝问题。
It's been an interesting week. We could only find 1/2" Foil Polyiso in Houston. We looked at two large building suppliers that are listed on the Johns Manville website. It would cost about $2,500 more to go with the 1/2" Polyiso vs. Tyvek. We start framing on tomorrow so at this point it seems Tyvek is in the lead. We briefly considered Tyvek Thermawrap but then noticed Martin's Top Ten list. lol
我们确实决定在开放的爬网空间中使用1/2“ JM箔polyiso。这是Joe L.中详述的两种方法之一。
Am I missing anything? Should I think about a Radiant Barrier over the Tyvek?http://www.radiantguard.com/ultima-radiant-barrier-1000sf.aspxSince I am using 1/2" in the CS, should I add more foam insulation? Should I be thinking about the JM product under the second floor that is over open space? or the space over the garage?
Any other advise for someone who is just about to start framing?
如果有人有兴趣，我有一个图片博客。
Thanks,
Robert
胶带XPS也将有助于停止蒸气驱动器并加热墙壁腔，以在冬季促进干燥。箔片更好，但如果不在预算中，那么第二好也许会做得很好。
I found a diagram on Building Science of the Perfect Wall - Residential.http://www.buildingscience.com/documents/insights/bsi-001-the-perfect-wall/
I think this is possible for my build using the following materials: Brick -> Air Space 1" -> XPS Foam 3/4" to 1" -> Smooth Foil Wrap -> OSB -> Wood Insulated Cavity -> Dry Wall Taped -> Paint. My builder is pricing the materials and we should know by the end of the day.
鉴于我的家人可以在这所房子里生活/长大50年以上，做出这些决定是艰难而复杂的。当然，人们想第一次正确地做到正确。
亲切的问候，
Robert
罗伯特，
我质疑您在OSB和XPS之间对“箔”的使用。
There is no benefit from the foil without an air space.
A recent Lstiburek Article reccomends "crinkled" building wrap between OSB and Foam sheathings.....the purpose is for hygric redistribution.
I was thinking the foil would simply act as the vapor barrier that is present in the Perfect Wall -Residential.http://www.buildingscience.com/documents/insights/bsi-001-the-perfect-wall/
在Joe L Houston的个人资料设计中。他说，房屋包装/OSB将与1“。我有2”，所以也许我应该坚持下去。
在乔斯灰泥的困境中，他说：“差距允许灰泥和OSB护套中的水分重新分布。缝隙也可以做其他事情 - 如果它足够宽，它就会成为通风的空间模拟。一旦我们有一个通风的空间（有意义的空气移动），传统建筑纸和塑料建筑纸的渗透性几乎无关紧要。“低pers”和“高pers”材料之间的任何东西都可以证明可行。事实，绝缘的半渗透护套是控制所有气候区域内蒸气驱动器的最佳工作。”
这似乎暗示了我对那个尺寸的空间空间和良好通风的任何作用。
Hi ... another issue ... if you're using a 2x4 with blown cellulose that will be 4" of insulation. I think that will be about R10 or 12 ... don't you need to have R20 in Texas? And even if you don't need R20 ... why wouldn't you have it considering A/C load demands in Texas?
“看来OSB内部的任何水分都将通过AC或De-Humidifier去除。”
Boy o boy A/C 24/7/52 ..... I guess at this point it's too late to drop the brick and go for a double stud R40 wall instead.
Yes too late on the brick it is paid for! Interesting enough 2x4 is standard construction here in Texas.
It looks like I can get 3/4" Foil Faced Polyiso. Dow Tuff Stuff. It has an R Value of 5.0. The blown in Cellulose has an R Value of 14. Not exactly balanced as Joe would suggest. I'm pretty sure he would want 3" Polyiso.
So the question is how would you guys build this wall?
Brick -> Air Space ~1 1/2" -> Foil faced Polyso 3/4"-> OSB -> 2"X4" Wood Cellulose Insulated Cavity -> Dry Wall Taped -> Paint? Is this a good plan??? Better than Tyvek???
The clock is ticking... We started framing yesterday.
感谢所有人的帮助。
罗伯特，
Your latest plan will work. I wouldn't worry about any moisture issues, as long as the mason does a good job keeping the air space free of mortar droppings, and as long as your brick includes above-grade weep holes. Be sure that the flashings are properly integrated with your foil-faced polyiso, which will be your WRB.
马丁，
Have you seen Joe's very new article "Mind the Gap, Eh?"
He seems to be saying that the "crinkly stuff" would be a good idea between foam sheathing and OSB.
约翰，
Ashrae给了我一个ID号码，并在一段时间前登录了他们受保护的网站，但今天不起作用，因此我无法访问这篇文章。但是，如果您对罗伯特有相关的建议，请继续并给予。听起来他已经用完了时间来最终确定他的细节。
马丁，
我会给你发电子邮件...开会后
约翰，
谢谢你送我的扫描”遗传算法思想p" article. The way I read it, the gap between OSB and rigid foam sheathing -- e.g., "crinkly stuff" -- is only required if the cavity insulation is closed-cell spray polyurethane foam. If you use cellulose, any incidental moisture that reaches the OSB -- there shouldn't be much -- can dry to the interior.
是的，马丁...我同意
我在线条之间阅读并过度保守。（照常）
There will be hundreds (or thousands) of brick ties with fasteners penetrating the sheathing and the OSB......but hey I know I am conservative
How can I research what "Crinkly Stuff" is?
罗伯特，
可能是过度的
all of these layers .....material and labor costs can get out of hand
The article only calls it "crinkled" building wrap
no trade names or products are mentioned
Examples of crinkled housewrap designed to promote drainage include StuccoWrap and PinkWrap Plus.
大家好。进步一直很好。我终于获得了3/4“ poliso的来源，这非常困难。致电制造商，致电发行商，发行商告诉我打电话给批发商，直到我找到携带它的人。我认为如果您能给我一个几个名字???无论如何我订购了它。
在这一点上，我想知道我是否应该继续对OSB进行包裹。我认为这可能还需要$ 1K。这是我永远的房子...想法？
We are framing the second floor today!!! Whohoo... Here is a linkhttp://picasaweb.google.com/cozart/HomeBuild#for those who like visuals.
Does anyone have any ideas for insulating under the 2nd floor space over the driveway? If you look at the pics you can see how this is all tied together with large steel beams.http://picasaweb.google.com/cozart/HomeBuild#
罗伯特，
在佛蒙特州，我们了解到，您不能使用玻璃纤维巴特来隔离天气的地板（例如，在车库上的奖励室）。在没有闭孔喷雾聚氨酯泡沫的情况下，在这里很难做得很好，尽管浓厚的纤维素可能会起作用。在休斯敦，您不必担心冷冻管道，因此您可以比我们在佛蒙特州的隔热疗法那样摆脱隔热疗法。
Those steel beams worry me. It's hard to see the bearing posts for the steel beams in the photos. Obviously, those steel beams are terrible thermal bridges, since they extend outdoors. The ends of the beams must be carefully insulated from the interior of the house with thick insulation. If that's impossible, you have no choice but to bring the steel beams inside the home's thermal envelope. That would mean insulating them entirely, including the outdoor portions.
马丁，
I was thinking you would say something to that effect. This is one application that I think spray foam is the clear winner. The total area is about ~250 sqft. I'm going to see about getting some quotes on it. I assume if you use the foam that I will not need the Poliso foam in that area. I can take that extra and use it in the garage.
罗伯特，
哇...看起来那光束也将携带砖贴面墙！
那正确吗？
该专栏正在承担严重的负担。
Even without the weight of the brick veneer
我只是看不到您将如何隔离马丁建议的那张束带的所有“室外部分”。
是的，这是对的，我们在两个外墙上都有砖贴面。很难在图片中说出，但是车库距车库3英尺，钢梁支撑在四面八方的砖贴面墙壁。这是我们永远的房子，我们到处都有100％的砖块。
I told the engineer that we would be living in this house until we pass away god willing in about ~60 years. I think he took my comments to heart as everything is designed pretty stout. The piers are all atleast 10ft deep. We got lucky in the worst drought in memory we hit the water table at 10ft.
It is in the 100 year flood plain and that is why we are going up. Although I somewhat doubt the maps as the previous house which was atleat 50yrs old never flooded. We made it through tropical storm Allison which was bad for Houston. Think 20" of rain in two days. Since then our watershed has had tremendous work done to it. It's a pretty interesting project thus far.
I think we spray foam that area over the driveway and that should be able to decouple the steal from the living spaces???
My builder and I meet with the foam insulation company today. We decided to spay foam in that area over the driveway and spray all the interior surfaces of the steel beams. In addition to that, I got him to agree to spray the stemwall floor joist conection. I figured the Polyso that we are putting under the house has a much better chance of working if we foam that area of the crawls space.
The major changes that I have made thus far are:
Replacing Tykek wrap with Stucco Tyvek
Adding 3/4" Polyso Foam to the exterior walls and under the garage
喷洒车道上方的区域
Spray foam the stemwall floor joist connection and add 3/4" Polyso to the crawspace
我认为这些是明智的变化，我要感谢这里的每个人的帮助，并评论了互联网在学习要问的问题时所涉及的有价值工具。
Can you all think of any small projects that could make a difference at this stage?
Hello,
In place of Tyvek, you may want to look at the reflective insulation housewrap product athttp://www.EcoFoil.com
好吧，至少他得到了纤维素的部分...
There are a number of different Radiant Barrier companies out there, but this one seems to have been around the longest (over 25 years) and they have one of the thickest and strongest products. Seems like they would be a good choice.