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和房子其余部分相比 夏天热的2个车库旁现有卧室房子位于CentralTexas(Austin),1994年建车库天花板使用 webtusse蝙蝠隔热性(2x4或2x6civity)高于车库表状岩石天花板,但隔热性全部下降并躺在板状岩石上,所以隔热性与OSB楼板间有很大空差上方4道墙中的3道是膝盖墙,端端与顶线分享斜天花板启动膝盖墙目前用玻璃棒隔热, 但没有密封空气,它们只是用塑料网格绑起斜向天花板上方有玻璃纤维棒完全填充天花板和顶甲板表岩间空白天花板2x6+3/4+2x6层和卧室天花板岩石之间的木块目前没有空气通道(除蝙蝠隔热区外)从Soffit喷口向上小阁楼取空气至卧室天花板平面上方卧室天花板上的小阁楼通过屋顶脊旁的小开口连接到房子其余端的主阁楼主阁楼有Soffit和Ridge喷口

正计划从车库天花板上取出所有表状岩石 并喷出34并代之以卧室周围开口细胞泡沫 以更好的隔热和空气封隔室 从阁楼存储空间计划阻塞所有膝盖墙下方的空气运动

几个问题:

3-4开放细胞泡沫在我的卧室底板上是否足够?

二叉2.) As part of the project, I'm turning part of the attic storage space on one side of the room into a closet that will become part of the bedroom.  I'll obviously insulate underneath the floor of the closet just like the rest of the bedroom and add blocking above the outer garage wall to ensure no air transfer under the closet or the rest of the bedroom.  How should I handle the ceiling of the closet?  Should I simply spray open cell foam directly on the roof deck and fill the entire cavity between the 2×6 roof rafters and add blocking to cut air flow off from the soffit vents?  If I do this, should I block off where the spray foam on the ceiling would end above the knee wall shared between the bedroom and closet?  This is where the fiberglass bats that insulate the sloped part of the bedroom ceiling start.

)如果我用开片泡沫填满衣柜上方的顶棚间空间,我是否会为顶板制造水分问题(我在得克萨斯州如此温和的冬天)?我是否最好用闭板喷雾泡沫换衣柜天花板或先从Soffit喷口创建通气通道再喷泡泡沫(即使你到达卧室上斜天花板时没有通气通道)

提前感谢您能提供的任何思想