最佳的半蛋糕 /半充血完成地下室的绝缘材料？
hi all,
i’ve been reading through blogs and articles on this site and beyond (//m.etiketa4.com/blogs/dept/musings/how-insulate-basement-wall), etc.
i have a basement that we are finishing for bedrooms and bathrooms. one wall is attached to our neighbor, 2 walls are 3 feet in-ground, and 1 wall opens at grade. we are installing an interior french drain, with which we planned to include a vertical vapor barrier to a 3′ height (to grade).
my foundation is stone and mortar (brooklyn). i have surmised that the best insulation for me to use on that surface is closed-cell spray. HOWEVER, what do i do, given the 3′ vertical vapor barrier?
should i spray first, then apply the barrier?
thanks in advance for your thoughtful replies.
josh
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Replies
Josh,
There are several ways to do this. In general, the vapor barrier is installed first, against the stone foundation; then the closed-cell spray foam is installed on the interior side of the vapor barrier.
Some builders prefer to install a dimple mat product against the wall first, to make sure that there is a travel path for liquid water to find its way down the face of the wall to the French drain at the bottom of the wall. Other builders assert that the rubble wall will always be rough enough to provide travel paths for water.
For more information, see Joe Lstiburek's article,Rubble Foundations.
thanks martin,
a few concerns...
1) the vapor barrier that the installer is using is rigid (it's proprietary), which is different than the more "sheet"-like materials i'm seeing.http://www.quality1stbasementsystems.com/basement-waterproofing-nj/wet-basement-products/walls/wall-vapor-barrier.html
2）蒸气屏障只会向上延伸到墙壁的一半，因此我担心从屏障的顶部到墙壁的上部ALF的“铰链”或“断裂”可能会损害喷雾泡沫的结构完整性。
3) i guess this means i have to clean off all the remaining platter sections that have been separating and peeling off the rubble for the past 90 years?
4) are there health hazards i should be thinking of for the spray foam? we intend to frame and cover it, but as that floor will have or bedrooms, etc., the family will be spending a lot of time down there.
thanks. i really value experts who are NOT salespeople chiming in on this!
josh
Josh,
您链接到的页面 - 描述一个地下室精加工系统的页面，其中包括一个描述不当的“蒸气屏障” - 有很多不足之处。它没有提及水管理或绝缘。该产品似乎是某种形式的面板，可作为内部成品墙，但该网站提供了很少的细节。
Needless to day, I would ask questions if a contractor proposed a material that is poorly described on the contractor's web site (or the material supplier's web site).
你需要有信心pproach suggested by your contractor, or you need to select another contractor.