两堵墙
两堵墙
我正在看两堵墙和您的投入。
我的目标是拥有一个更节能的房屋，但同时在我的方法中是合理的。这意味着它不需要符合被动房屋标准，也不需要寻找任何类型的认证。
这是我第一次作为所有者建造者，拥有一些建筑经验来做这类房屋。我一直在寻找合适的分包商来实现我的目标并找到了一些。
I hope you will be upfront with your insights.
我们购买了两个英亩，可以在其中建造两个房屋。目前，我们将首先建造700平方英尺的客人住宅。
提前感谢您的回复
理查德
Generally Info
20×35 Home 700 square feet.
Zone 4 High Desert 4,900 feet central Arizona.
2卧室1浴室
6 Windows, 2 Doors (of these 3 Windows and 1 Glass Door will be on the South Side Of House.)
WASTO的Windows（Genio高性能Windows U值.17）
All Electric Home.
HVAC- ERV Ultimate Air ER80, Mitsubishi MZ-FH09NA 9,000 BTU 30.5 SEER Ductless Mini Split.
Slab on Grade.
Primary Air Barrier inside wall and ceiling plane.
7/12沥青金属排气屋顶。2英尺的悬垂。
Energy Heel Trusses. Simple Gable Roof/Blown in Knauf Ecofill above ceiling plane insulation R-45
Design Criteria For The Area We Are Building.
Winter Design Temperature 20 Degrees
Wind Speed 90 MPH
地震类别c
Common Feature For Both Walls.
2×6前进框架，中央24英寸。
Knauf Ecofill BIB R-23
475 Intello Plus。气密性，智能蒸气控制和密集的包装加固。
石膏板。
Wall A
Zip R Sheathing, 1 inch thick R value 3.6
Questions
1. From my understanding a r value of 3 is a adequate thermal break for zone 4. Is this true?
2. Is there a benefit of adding a liquid applied joint and seam filler where the zip R panels meet? From my understanding there is a 1/8 inch gap of the OSB to the insulated foam. The foam butts up to each other not the OSB aspect of the sheathing.
3.外部的冷护套应该关注我的气候和壁绝缘厚度吗？
4.将雨屏放在拉链上，即用于壁板的毛茸茸条。如果我选择使用乙烯基壁板，则不能使用毛茸茸的条。有一种称为Glide Lock壁板吊架安装系统的产品，它将使我可以将乙烯基壁板直接放在护套上。如果我使用乙烯基壁板是他们的薄毯子型雨屏，或者不需要吗？
5. As a newer product that does not have much history is there any concerns that maybe I should be aware of.
What I Like about zip r sheathing
1产品3谢伊功能thing, continues exterior insulation, WRB.
Reduced Labor and ease of installation.
Seems I do not need to make extension bucks for Windows and doors.
Wall B
添加了某种形式的外部刚性绝缘材料的拉链护套。
Questions
Option A
1.根据上面的答案，如果3的r值3可以用作区域4的热中断。我知道最好将至少1英寸的外部刚性绝缘层在护套上覆盖是真的吗？我相信这涉及露点。
2. From everything i have seen best practices is to place a rain screen over the exterior rigid I nsulation then add siding?
This wall assemble seems to require more labor and require more detailing around Windows and doors.
Option B
1. Insulated Back Vinyl Siding. Their are insulated back vinyl sidings that have a r value of three and four. Has anyone had any experience of this insulated siding material over zip sheathing?
2.如上所述，有一种称为Glidelock壁板吊架安装系统的产品，它使我能够将乙烯基壁板安装在中间24英寸。是否有人使用过此系统。乙烯基壁板需要冲洗到护套底物。
This option can reduce labor assemble combing the siding and thermal break insulation in one step.
Is there any other questions I should have asked and didn’t?
GBA细节库
A collection of one thousand construction details organized by climate and house part
Replies
理查德,
问：“从我的理解中，3的R值是区域4的适当热中断。这是真的吗？”
答:没有。没有特定的定义or what can be called a "thermal break." It is certainly true that there is no minimum R-value for exterior rigid foam in your climate zone -- for more information on this issue, see计算刚性泡沫护套的最小厚度.
When it comes to a thermal break, R-3 is better than R-2, but worse than R-4.
问：“添加邮政编码面板相遇的液体接缝和接缝填充剂是否有好处？”
A. No. You should follow the manufacturer's instructions concerning the installation of Zip-R sheathing. The manufacturer requires the use of Zip System tape at the panel seams.
问：“外部的冷护套：这是否应该关注我的气候和隔离隔热厚度？”
A. In Zone 4, you aren't likely to have moisture accumulation problems or sheathing rot problems.
Q. "Placing a rainscreen over the Zip R sheathing, i.e. furring strips for siding: If I choose to use vinyl siding, I cannot use furring strips. There is a product called Glide Lock Siding Hanger Installation System which will allow me to place the vinyl siding directly onto the sheathing."
答：如果您想将乙烯基壁板直接安装到护套上，则不需要特殊的“滑行滑动吊架安装系统”。按照壁板制造商的说明，只需将壁板钉在护套上即可。乙烯基壁板不需要降雨，因为它固有地通风良好且排水良好。
理查德,
Q. "I understand it is still best to go a minimum of 1 inch of exterior rigid insulation over the sheathing. Is this true?"
答：外部刚性泡沫可减少穿过螺柱的热桥，改善气密性，并为壁系统增加R值。但是没有最低要求。
Q. "I believe this deals with the dew point."
A. In some climate zones, that's true. But in Zone 4, it isn't necessary.
Q. "From everything i have seen, best practice is to place a rainscreen over the exterior rigid insulation, then add siding?"
答：对于许多壁板类型来说是正确的，但对于乙烯基壁板来说不是如此。有关更多信息，请参阅所有关于雨屏.
Q. "Insulated Back Vinyl Siding: There are insulated back vinyl sidings that have a R-value of three and four. Has anyone had any experience of this insulated siding material over Zip sheathing?"
A. I don't recommend the use of insulated vinyl siding, since this type of siding modifies the siding in a way that removes the best feature of the siding: the fact that the bumpy profile of ordinary vinyl siding leaves a ventilated gap between the siding and the housewrap. Insulated vinyl siding has a flat back and no air space -- that's much worse than ordinary vinyl siding from a ventilation and moisture performance perspective.
Q. "There is a product called GlideLock Siding Hanger Installation System that allows me to attach the vinyl siding 24 inches on center. Has anyone used this system?"
A. I'm not familiar with it. I'm not sure what advantage it provides.
非常感谢马丁很清楚
You will have trouble finding people to install unfamiliar products correctly in the trades.
See
http://www.dupont.com/products-and-services/construction-materials/building-envelope-systems/videos/moisture-in-coated-sheathing.html
http://www.dupont.com/products-and-services/construction-materials/building-envelope-systems/videos/zip-reverse-shingling-vs-tyvek.html
http://www.dupont.com/products-and-services/construction-materials/building-envelope-systems/articles/wall-sheathing-comparison.html
With Intello on the interior you already have a class-II vapor retarder under wintertime conditions, mitigating any dew point issues, but that's already only a very small risk in zone 4B even without the Intello.
An alternative to a 2x6 /R20 wall (IRC 2015 code minimum), at the same wall thickness a 2x4 16/o.c. (25% framing fraction) wall with foam edge strips on the interior side will outperform 2x6 wall with a 20% framing fraction. See this bit o' bloggery:
//m.etiketa4.com/blogs/dept/qa-spotlight/making-case-case-exterior-foam-usdulation
特别是此图形：
//m.etiketa4.com/sites/default/files/2x6options_1_0.jpg
The Bonfiglioni wall is 2x4 wall with ~R4 edge strips fattening it out the same wall thickness as a 2x6 framed wall, and would be comparable in performance to (but cheaper than) a 1" ZIP-R 2x6 wall.
但是，正如最近的博客作品中指出的那样，使用Beopt优化窗口尺寸，类型和放置可能是提高整体性能的一种比添加一英寸泡沫或泡沫负载的乙烯基壁板的方法。过于关注墙壁性能可能会错过更大的机会。
谢谢Dana，我会看你的建议
我的第一个想法或问题是。
我需要在护套外面的外部绝缘。在这种情况下，我很可能会使用ZIP标准护套材料。
The cavity would be probably still be R-23 with Knauf Ecofill
理查德,
问：“我需要在护套外面的外部绝缘吗？”
A. I've tried to explain this concept in my earlier comments, but I guess it's still unclear: In your climate zone, you don'tneed连续的外部绝缘。但是，连续的外部绝缘层仍然是理想because it improves the thermal performance of your wall.
Thanks Martin
我想我的问题是指达纳关于邦菲利奥尼墙的建议。
But I thank you for emphasizing my options.
This is a great source for builders who want to improve the performance of their homes and is very much appreciated.