地下室绝缘 /墙壁框架有限
你好。我在明尼阿波利斯的1960年代牧场上工作，均低于等级，并拥有混凝土砌块基础。I’ve read pretty much all of the articles here about basement insulation, and I was set on doing the following: 2 inches of XPS glued to the block, then a 2×4 framed wall, and then either XPS or spray foam in the stud bays. HOWEVER…
有一天，我想将这个成品空间变成卧室。多亏了地下室已经完成的部分（由前任所有者在1970年代完成），我正在完成一个较小的空间。建筑代码需要一间卧室的最小尺寸在任何方向上。现在，如果我像计划的那样框架墙壁，我的房间大约3英寸太窄。而且，由于地下室的一部分已经完成，除了重新思考如何隔离我的块墙之外，我做不到的事情。我总共有3英寸可用于绝缘和框架，但不包括石膏板。这是我正在考虑的一些想法：
1. 0.5” XPS on block wall, with 2×3 framed wall, and 2” XPS filling stud cavities
2. 1英寸XP在块壁上，有2x2固定在混凝土上，然后在螺柱腔中喷涂泡沫或喷雾泡沫
3. 2英寸XP在砌块墙上，1×3或1×4绑在混凝土上，干墙，连接到绑带
I don’t need to run electrical or anything else through this wall, as I will have 3 other sides with regular 2×4 walls to do that. Are any of these options worthwhile?
Thanks,
j
GBA Detail Library
由气候和房屋部分组织的一千个建筑细节的集合
答复
杰伊，
在您列出的三个选项中，＃3是最好的。
如果您想挤出更多的空间，则可以使用一款刚性泡沫产品，该产品带有专为插入毛ring条设计的路由通道。有两个例子欧文·康宁（Owens Corning）胰岛素和ABT Foam PreFur。
也有可能直接操纵胶水干墙id foam, if you can come up with a way to apply even pressure to the drywall until the glue dries. (Use scraps of plywood and lengths of 2x lumber that extend to the opposite wall.)
That said, you have a bigger problem than figuring out how to insulate your wall. If your basement is "all below grade," as you explain, then a basement bedroom is illegal unless you can find a way to install a properly sized window for emergency egress. That type of window requires a very big window well, usually with masonry or concrete steps.
Hi Martin. Thanks for your response. In regards to the basement window, luckily there is already a small basement window in the space that I am finishing. Thus, I will enlarge it and make it a code-approved egress window in order to consider is a bedroom.
我已经附上了我打算做的事情的图纸。是的，这将是一个小房间...但是没关系。我试图最大程度地减少已经整理的部分的拆除，同时增加了我家中的成品空间。
再次感谢，
周杰伦
Martin, after thinking about this some more, I realized that I will have to go the route of gluing drywall to the foam itself. I can't acquire InsulPink (won't meet minimum order), and if I use 1x4 furring, then I won't be able to meet the code-minimum for basement wall insulation in my zone. I need R-15, which would be three inches of XPS. I only have three inches of room for the insulation/wall combo, so it will all be used up by the insulation. The only other option is using polyiso...but I have already purchased and brought home the XPS, so I kind of feel stuck with it.
我不为他们工作，但我是一个非常满意的客户。我会仔细研究一下，看看它是否满足您的需求。带有集成塑料螺柱的泡沫板，可将其粘在墙上。关键优势是集成的塑料螺柱消除了对单独的框架墙的需求。您可以连接另一层蓝色板以进行更多的绝缘材料，也可以将干墙拧入塑料螺柱。轻松自己动作产品。
明尼苏达州对如何隔离基础有一些州代码的特定限制，包括要求至少R10在外侧，延伸到基础或低于等级的10'，以较小者为准：
http://codes.iccsafe.org/app/book/content/2015_Minnesota/Residential/Chapter%204%20%5BRE%5D.html
------------------------------
R402.2.8 Basement walls.
Walls associated with conditioned basements shall be insulated from the top of the basement wall down to 10 feet (3048 mm) below grade or to the top of the footing, whichever is less. Foundation insulation shall be installed according to the manufacturer’s installation instructions. Walls associated with unconditioned basements shall meet the requirements of this section unless the floor overhead is insulated in accordance with Sections R402.l.1 and R402.2.7 and the following requirements:
一个。R402.L.L.1至R402.L.L.8的R-15隔热材料应安装混凝土和砌体基础，并应在墙壁的外部安装最少的R-10。内部绝缘材料（除闭孔喷雾泡沫外）不得超过R-11。基金会应根据《国际住宅法典》（IRC）的适用规定进行防水。
例外：如果在R402.4.1.2节中所需的经过测试的空气泄漏率不超过每小时2.6个空气变化，则允许每个基础墙外部的R-10连续绝缘材料遵守此代码。每个基础墙的成品等级和顶部不超过1.5，乘以封闭条件空间的每个基础墙的总线性英尺。内部绝缘材料（除闭孔喷雾泡沫外）不得超过R-11。请参阅脚注C到表R402.2.L.
b。在木粉底墙中需要最低R-19腔绝缘。请参阅脚注1到表R402.2.L.
-----------------
请注意，如果CMU基础上有任何内部绝缘层，则必须设置每个核心以排水至内部侧排水系统，根据R402.1.1.4部分。
None of the proposed insulating methods meet code. If you're going to do it any differently it's important to get sign off from the local code inspectors first, or you may be forced to rip it out and start over.
挖到外部的基础上可能很困难或可能不困难或不昂贵。低于3英寸的XPS可以用4英寸的EPS隔热，您可以将其逐步回到上述零件上的2英寸，而内部的1” Polyiso在下面的5'年级。这将使CMU墙的底部向内部沥干并干燥，并应限制任何对霜冻靠立足的问题的担忧。在上述级别的部分和未绝缘的底部之间有5'的混凝土，实际上是R5，而不是很大的热量损失。
改装上的代码可以是灰色区域。他们也可以接受改进，即使它并没有将其全部带入代码。与您当地官员的对话很早而不是晚些。您可能会发现自己的余地比您想象的要多，或者您可能会发现自己的余地少。然后，如果您提出特定的挑战，那可能是一件好事。
感谢您的所有建议。我今天下午确实与当地的建筑检查员交谈，他不得不说的是使我更容易。显然，明尼苏达州在完成地下室时没有对现有房屋的任何能源代码要求。他说，他可以帮助指出最佳实践，但仅此而已。没有最小的R值，没有蒸气屏障，没有外部级绝缘。
With that in mind, I still will want to design the room to have a 7-ft width in case I want to convert it to a bedroom (by adding egress window) in the future. My plan will be to use 2'' XPS on the block wall with 1x4 furring strips and drywall attached to the furring. Since this is only on one wall, I'm not worried about electrical.
对于平板地板，根据我在这里阅读的内容，我将使用EPS（少$$）和胶合板（//m.etiketa4.com/content/eps-insulation-under-basement-floor).
很高兴听到这不会那么困难。我建议其他选项与XPS，但是如果您已经订购了它，它将在那里运行良好。
嗨，查理，您建议什么？我喜欢学习新事物，所以我很好奇。
杰伊，
我猜想查理的评论与XPS是由具有极高全球变暖潜力的吹气剂制造的事实。这就是为什么绿色建筑商试图避免使用XPS的原因。从环境的角度来看，EPS或Polyiso比XPS更可取。
马丁说的。XPS是目前市场上最不绿色的泡沫，随着时间的流逝，它会失去吹吹动的代理，它也会失去性能，最终与相同厚度和密度的EPS相同。
Even if you don't dig down to the footing on the exterior, with 2" of EPS or polyiso on the interior, fattening up the R on the exterior with 1.5-2" of EPS finished off with a cementicious EIFS such as QuiKrete Foam Coat down to at least a foot or two below grade will be worth it. The above-grade portion has by far the highest heat loss, and is well worth the bringing the above grade portion up to code min levels.
2“ⅱ型EPS R8.4运行,在1.5”R6.3。所以with 2" of interior side EPS and 1.5" of exterior above-grade EPS the above grade portion that counts the most would be R14.7, nearly R15 from a labeled perspective, but since EPS gains performance as it's tempearture drops, it would actually exceed R15 during the winter months.
在2英寸时，Polyiso将标记为R12-R13，但在较低的温度下失去了一定的性能，如果它是堆栈中唯一的绝缘材料，则在大约R9的中期性能中会有冬季性能1.5“外侧的EPS Polyiso性能将平均R10-R11，保持温暖，并更接近其性能温度范围更高。
使用2“ + 2” EPS，您可以从CMU的热质量中获得适度的好处，即使在不计算热质量的情况下，它也会超过代码米。
Another option is to attach 1.5" XPS to wall with 1" strapping (0.75" thick) and then fill in between the strapping with a layer of 3/4" XPS. Drywall on top of that -- in effect a 2.25" foam layer with inset strapping. Plus maybe some extra benefit from the staggered overlapping seams on the foam layers.
感谢大家的建议。我认为我已经弄清楚了墙壁隔热/框架。我不想启动另一个线程，但是我确实想问到这间卧室时出口窗口。
Currently there is the standard 30'' wide basement window. I understand the code requirements for egress windows and wells, so I was planning on just lengthening the current window opening in the concrete block foundation. By doing so, I will meet the requirements for the finished sill above the floor as well as the well height below the outside grade.
我的问题是关于排水。我没有内部污水泵或排水管。我假设自从我的房子建于1960年代以来，我也没有外部流失。我确实有很好的排水沟，一个不错的屋顶悬垂（2英尺），并且外观良好，从房子远离房屋。即使我想很好地将排水管从窗户上跑出，我认为我不会因为大约4个非常古老的银枫树带有深根。井排放井吗？如果没有，我可以采取哪些预防措施来确保水在我的地下室中留下来？
Thanks,
周杰伦