密集包装纤维素泄漏多少空气？
我一直在思考浓密的包装纤维素并阅读它的各种性质。我在同一留言板上找到了很好的讨论：//m.etiketa4.com/community/forum/energy-yeffity-andulity/12291/dense-packed-cellulose-air-barrier.。
我在该讨论中学到的是Desnse包装纤维素不被认为是空气屏障，因为它不符合0.02L / sec-m2或0.004 cfm / sf @ 75pa的空气屏障的ASTM标准。这对我来说是有道理的。我想知道的是，如果有关于如何透气致密包装纤维素的研究发生了。我想看到数字，特别是以与谈论实际的空袭在相同的形式表达的数字。有任何想法吗？
谢谢
乔什恩格尔
答案
乔希，
这是一篇解决问题的文章：
不要致密纤维素和密集包绝缘：
"Empty walls (a wood frame wall with plywood sheathing or a wood frame wall with board sheathing, building paper and interior gypsum board) vary [in air leakage rates] between 0.4 to 4 cfm/ft2 at 0.3 in. w.c. (2 to 20 L/s·m2 at 75 Pa) leakage. When we blow them with insulation (we dense pack them to around 3.5 lb/ft3 [56 kg/m3] density), the leakage drops to 0.04 to 0.2 cfm/ft2 at 0.3 in. w.c. (0.2 to 1.0 L/s·m2 at 75 P.5). This is unbelievably impressive.... As impressive as these numbers are, an order of magnitude reduction in leakage, we need to put these numbers into perspective. Dense pack cellulose and dense pack fiberglass are not air barrier materials, and they do not result in air barrier assemblies."
谢谢马丁，有帮助很多。