Replies

1. GBA Editor
   Brian Pontolilo|Oct 30, 2019 04:58pm|#1

   Hi Nat.

   I'd like to see a photo or drawing to get a better picture of what you are describing, but from your post I think what you are proposing is fine.

   I assume that you'll be insulating the concrete on the inside, but one thing that you can consider is adding some rigid insulation outside of the concrete. If this helps you get the siding over the concrete out to the plane of the siding of the wood-framed wall above, it comes with a thermal benefit. I did this on a walkout basement situation and it worked great.

2. 
   Nat .|Oct 30, 2019 10:22pm|#2

   Thanks, Brian. Yes, insulating the concrete basement wall on the inside. I'm still up in the air on the overall above grade wall assembly but whichever way it goes the general idea for this would stay the same (dimensions may vary based on wall system/ext insulation etc).

   请参阅附件非常粗糙的初步草图。就像我在其他地方一样，终止和闪烁护套到混凝土墙边界似乎是个好主意。然后，下部是一个独立的屏幕，它绝不会影响我典型的基础密封/细节（除了隐藏它之外）。您会看到护套和上部闪烁的戳戳，但要比混凝土墙的3.5英尺好。这有意义吗？我对自己造成了任何问题吗？

   
1. Expert Member
   Malcolm Taylor|Oct 30, 2019 11:01pm|#3

   Nat,

   绝对是一个好主意，将两个层面的壁板用闪烁的方式分开 - 如果没有其他原因，除了上面的框架的机会，混凝土墙到处都是相同的平面，这是非常苗条的。

   You may want to re-think what flashing you use there. Not providing any ventilation makes the rain-screen gap less effective. I would put a solid flashing over the lower-siding, but 3/4" up I'd put a perforated J flashing over the base of the upper-siding to allow air movement..

1. 
   Nat .|Oct 31, 2019 07:48am|#4

   Thanks, Malcolm. Good call. I wasn't aware of the perf j-flashing but read about it and get it now.

   我不确定雨屏缝隙是多少，这会影响闪烁。我正在看滚动产品，例如“家用滑板”和“毛茸茸的条”。我对所有这些细节的测试是，我是否可以想象DIY'和滚动产品感觉很笨拙（以一种很好的方式），因此我朝着这个方向倾斜。我发现的唯一负面评论/缺点是相对成本，尽管我想象您可能会在劳动方面获得一些信誉。对使用滚动产品与毛茸茸的条带有缺点的想法吗？

1. GBA Editor
   Brian Pontolilo|Oct 31, 2019 09:24am|#5

   Hi Nat.

   I think your details look good and I second Malcolm's concern to make sure that you have good venting at the bottom of the rainscreen.

2. Expert Member
   Malcolm Taylor|Oct 31, 2019 11:27am|#7

   Nat,

   雨屏的有效性因其在我们包含的功能方面的表现如何而有所不同。列表的底部将是皱纹的WRB，然后是网状，直到顶部，这将是一个深板的腔体排气的顶部和底部。

   您需要雨屏的有效性取决于气候，以及墙壁对外部干燥的依赖程度。在大多数情况下，网格就足够了。

3. 
   Nat .|Oct 31, 2019 11:04am|#6

   Thanks, Brian. Yes, I probably have a lot of other things to catch in there as well - I just wanted to make sure the general idea of siding over the concrete wasn't an issue I was missing.