Replies

1. Expert Member
   Malcolm Taylor|Jul 23, 2018 11:23pm|#1

   Lance,

   棘手的位是从杆壁到上面的框架的过渡。通常，在车库的内部周围存在混凝土的边缘，其中基础在倾斜板之间可见和上面的框架。它是一种有用的目的，将水从干墙上保持下来。

   Making the foam continuous means either aligning the framing above with the interior of the foundation wall, or figuring out how to cover the foam below the framing. In either case you probably don't want to bring drywall right down to the slab.

   Remember that California Corners and other typical framing variants don't work with interior foam. It also makes drywall returns on windows a lot more dicey.

2. GBA Editor
   Martin Holladay|Jul 24, 2018 06:19am|#2

   Lance,
   Malcolm's points are all good. But to answer your question: You can install a continuous layer of rigid foam on the interior side of your studs if you want. (Malcolm's correct, of course, that it is unlikely that this layer of foam will be continuous with the rigid foam on the interior side of your concrete stemwalls.)

   For more information on this issue, see“内部刚性泡沫的墙壁。”

3. 
   Lance Peters|2018年7月30日03:54 PM|#3

   Malcolm / Martin，谢谢你的想法。

   I'm leaning towards 2x8 framing for the garage lined up with the inside of the foundation wall. The walls will be nearly 12 feet tall, and my local code compliance guy indicated a 2x6 wall would need to be on 16" centers at that height. If my Engineer will approve 24" centers with 2x8's the lumber cost difference will be negligible while giving me a thicker insulated wall. I can get the siding lined up with correct batten thickness on the outside, and on the inside my foam layer will line up with the slab layer nicely. I'll use something other than gypsum for the lowest 6" or so of wall finish, perhaps that fancy composite deck material.

   Great point about the corners, Malcolm! I'll be sure to plan ahead for drywall, both in the corners and the wall/ceiling joint.

4. Expert Member
   Malcolm Taylor|2018年7月30日08:53 PM|#4

   Lance,

   I hadn't even thought about the wall/ceiling joint - good spot!

   I used Timber-tech decking as baseboards in a commercial kitchen last year. Pretty bullet proof.

5. 
   Dick Russell|2018年8月1日05:39 PM|#5

   我的车库里有类似的情况，基础墙壁内的泡沫绝缘，顶部到脚，框架墙上的绝缘和片材上方，并且在板坯下没有绝缘。阁楼空间被绝缘到R30，并且顶部门被绝缘为“R18”（可能没有比R6-8“全门”）。为了保护上面的泡沫免受热和冲击损坏，我将助洗剂覆盖为Durock（水泥板），从而高于混凝土的四分之一英寸或更长，然后盖上基础和泡沫顶部的暴露部分使用2x6，在侧面切割Dado以捕获Durock的顶部。

   在机库的冻结保护方面，通过板坯的低热量水平使内部远远低于大约37-38 F的冬季。我已经看过它的最寒冷，如距离平板约6英寸，在零的零到单位温度下接近32。我从未见过平板上的冰，甚至靠近门。这是在中部。

6. 
   Lance Peters|Aug 02, 2018 12:08pm|#6

   Dick, thanks for the info! My plan is very similar, to not insulate below the slab and use that as a source of heat to keep the garage above freezing. I don't need it warm, just enough to keep the cars thawed out.