你如何建造一个密封的房子?
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如何制作密封的家庭信封?
Valeriy Kraydman
Dec. 1, 2020Last updated: Dec. 3, 2020
I'm renovating and expanding my existing house on Long Island and struggling to find knowledgeable professional to make airtight passive house. Luckily I was around to correct below ground insulation in time before slab was poured, but need to plan better for above the ground. My contractor is planning foam insulation based on HERS measurements followed by taping leakages and openings. I feel it is not true envelope and will not make it as efficient house as it can be. I'm looking for some guidance here as after hours of reading up on different options it becomes a mess.
Also I'm planning to install ERV system - looking for type recommendations as well.
Thank you!
Getting a home to the airtight enough to meet the requirements of Passive House is not easy，尤其是翻新。用胶带粘硬泡沫塑料并不是我所依赖的空气屏障，甚至喷射泡沫塑料有时也会收缩和破裂，留下空隙导致空气泄漏。你要把整栋楼都拆了吗?如果是这样的话，在你应用任何坚硬的隔热材料之前，我会用一层外膜作为空气屏障。We did that on one of our demo houses and hit PH airtightness levels, you can see a video of it here –
How to install air barriers properly to make a house airtight – DIY video
As for ERVs, installing a high efficiency one is wise, if you’re looking for guidance see our page onchoosing the best ERVs and HRVsOne last thing I’d mention is this product that my help meet your needs –ThermalWall Passive House certified exterior rigid foam panels. They have a pretty innovative install method, there is a metal rail embedded in the panel that you use to attach it, then you attach your strapping to the same rail. It is a great way to install exterior insulation but avoid thermal bridging. I hpe that helps, let us know if you have more questions. /guides/2262/what-is-a-thermal-bridge-and-why-is-it-so-important-to-break-it/