喷雾泡沫通常需要直接施加到护套的下侧，以确保水分不会直接凝结在护套的下侧。I see no issues with your vented assembly, although I don’t think you gain anything with spray foam there if you already have that 1” polyiso layer taped properly, but for your unvented assembly I would use entirely closed cell spray foam directly against the underside of the roof sheathing. You need enough spray foam to get the proper ratio for your climate zone (lots of info on this here), once you’ve done that you can use whichever type of insulation you choose to fill the rest of the space.
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灯光棒很糟糕，非常糟糕，在一个不经常的屋顶装配中。我会认真考虑用密封的东西取代它们。在我自己的家中，我有两个可以在大教堂天花板上灯，一个通风，在冬天，你可以清楚地看到他们上方的雪融化跑到屋顶上。几年前我在新屋顶上换下了一个相同的区域，需要一些蜂窝。我有一个即将推出的项目可以摆脱灯光。
您可以将屋顶通风口放入用于在脊通孔之前停止的通风通道，或者在像天窗或烟囱等渗透后开始。您应该为每个椽腔进行一个，以确保这些破损的空腔进行适当的通风。
喷雾泡沫通常需要直接施加到护套的下侧，以确保水分不会直接凝结在护套的下侧。I see no issues with your vented assembly, although I don’t think you gain anything with spray foam there if you already have that 1” polyiso layer taped properly, but for your unvented assembly I would use entirely closed cell spray foam directly against the underside of the roof sheathing. You need enough spray foam to get the proper ratio for your climate zone (lots of info on this here), once you’ve done that you can use whichever type of insulation you choose to fill the rest of the space.
账单
Joseph Lstiburek在本文中讨论了许多屋顶装配布，可以帮助通知您的方法：BSI-100：混合组件。
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