我在安大略省有一个正在建造的新家-气候区6。两层，1400平方米。每英尺。较低的一层是步行地下室，三面ICF墙。框墙是(从外到内):工程木搭接壁板，1×4垂直条带，½“拉链护套，结构2×6墙，1”间隙，2×4内墙，Pro Clima Intello Plus蒸汽减振器，½“干墙。屋顶主要是通风阁楼的平天花板与18“能源脚跟桁架。天花板(从内到外):½”干墙，1×3捆扎，Intello Plus，桁架。天花板和螺柱墙绝缘是吹入玻璃纤维。外墙的拉链护套和天花板的Intello Plus形成了主要的空气屏障。我的问题是:连接外部空气屏障(Zip)到天花板的Intello的双螺柱墙顶部板的空气密封有多重要? I think this is very important, but I’m not sure my builder is convinced. Otherwise, if there are any air leaks in the Intello in the walls – not unlikely given the numerous penetrations for wiring, etc., and the Intello location immediately behind the drywall where it is susceptible to damage from nails, screws, and the like — that air has a path through the insulation into the unconditioned attic space via the 1” gap between the top plates of the stud walls. This seems like a recipe for moisture condensation problems as well as energy loss during the heating season. Most of the high-efficiency building documentation I have seen emphasizes the need to carefully air seal the top-plate area. It could be argued that well-sealed Intello in the walls could be the primary air barrier, but I’m reluctant to rely on it completely. One of the reasons we paid a premium price for the Zip was to make it the primary air barrier. Thoughts? Am I being totally nit picky?

谢谢你,吉姆。霍金斯