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将绝缘材料添加到现有混凝土墙上的方法?

我们刚刚购买了一个新的(建于1951年)的房屋,并在进行一些翻新之前正在进行一些翻新。一个主要问题是整个房屋中缺乏绝缘材料。外墙是由混凝土砌块建造的,外面有完整的砖块。然后看起来内部石膏被直接放在混凝土块上。这所房子曾经有一个平坦的焦油屋顶,以前的业主添加了工程桁架来创建阁楼空间。我们发现的只有隔热材料是在内部天花板和旧的焦油屋顶之间,墙壁或新阁楼都没有。对于墙壁,到目前为止建议的方法是用2x4s将墙壁框起来,添加绝缘层,然后再干墙。根据需要移动我们的开关和电动。需要一些建议!

1. Is this our “best” approach to increasing the efficiency of the walls? (We are adding attic insulation also and I know that will give us some huge efficiency gains.)
2.除2x4s不吃那么多的内部平方英尺外,还有什么方法可以实现这一目标?
3.哪种类型的绝缘材料会表现最好?
4.我发现一些文章担心将内部绝缘材料添加到外部砌体产品(冻结/解冻等)中。这会关注这里吗?

我们在第4A/5A区(在边境)中。
太感谢了!我们对这所房子里需要发生的一切感到不知所措!它计划成为我们永远的房子,因此我们要确保长期获得最大可能的效率。

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答复

  1. 凯文·迪克森(Kevin Dickson),MSME||#1

    如果砖变质或涂漆,您可能会考虑在房屋外部附有“露出”。胶带的交错层可能会提供更好的空中封面,您不会失去任何地板空间,并且您可以从现有墙壁的热量中受益。

  2. GBA编辑
    Martin Holladay||#2

    凯瑟琳,
    If there is any way you can follow Kevin's suggestion of installing foam insulation on the exterior side of your brick walls, that is always the best approach to insulating a building with uninsulated masonry walls. The easiest way to do this is with EIFS (synthetic stucco over rigid foam). If you decide to go this route, you should call up some EIFS contractors to get estimates.

    如果你真的想让你的砖外,哟u'll need to install interior wall insulation -- either closed-cell spray foam or rigid foam installed on the CMUs. For a variety of reasons, including possible problems with inward solar vapor drive, I don't recommend that you use air-permeable insulation like fiberglass or cellulose.

  3. 凯瑟琳·肯德尔(Kathleen Kendall)||#3

    感谢您的反馈!砖块状况良好,我们不希望掩盖它。听起来我们正在使用内部绝缘解决方案。感谢您提供有关绝缘类型的建议。

    We do however have a smaller guest house on the property of CMU which does not have any other exterior materials. So we can go the external rigid foam route for that building.

  4. Floris Keverling Buisman||#4

    凯瑟琳,
    I would first check that the house is managing rain well - has good gutters, lintels, sill that direct water away from the wall. Then check for any spots that get soaked during a rain storm. If the brick stays dry, and is relatively hard/non-absorbing (Probably since there is CMU on the inside, so it is not 125yr old brick). It is probably pretty save to insulate on the inside. Athttp://www.foursevenfive.com,我们喜欢出于各种原因(可持续性,放气,收缩)远离泡沫 - 避免泡沫还可以在需要时使墙壁向内干燥,但确实需要像这样的智能蒸气延迟器Intello我们提供的膜。请看我们Blogpost砖石建筑中内部绝缘的可能性和危险有关更多详细信息,请提示使信封的气密充分利用任何隔热材料(也围绕地板横梁),并让我知道您是否还有其他问题(并且不要忘记隔离屋顶..)

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