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1. 专家成员
   Zephyr7|2019年10月27日下午9:09|＃1

   您可以做到这一点，要么将盒子安装在表面上，要么将它们切入护套中。根据您的壁板所做的事情，这两个选项之一可能比另一个更好。

   如果盒子位于护套的表面，只有在盒子后面钻了一个圆形保持，通常会更容易空气密封。您所要做的就是将电缆夹在盒子背面的一个敲除中安装（我强烈建议您在此处使用金属盒），切开一个圆孔以使用孔锯清除整个夹具。夹具将延伸到护套中，并与护套的内表面大致冲洗。运行电线后，只需用喷雾泡沫填充孔，然后使其符合盒子的背面，密封电缆和整个夹具。您最终在几乎没有努力的情况下获得了完美的空气密封，但是您需要从护套的外部表面至少有1-1/2英寸的成品表面，以便您有盒子的空间。较厚的组件毫无问题，要么使用“深”（2-1/8”）盒子，泥浆戒指，后背块（电盒背面和护套的背面之间的一块木头），也可以组合这些东西。目的是将盒子的脸部或泥环之间的脸部或泥环在壁板的成品表面后面左右左右。最好不要尝试冲洗，因为如果任何尺寸有所下降，那就没有摇摆不定的空间。

   如果将盒子切入墙壁，则必须像安装在外墙中的室内电盒一样，以相同的方式空气密封盒子的背面。这是完全可行的，但是参与其中。This method doesn’t work as well for thick wall assemblies either, since you have to somehow extend the device mounting location (the face of the box) up close to the surface of the finished siding, and mud rings are the only way to do this. You are NOT permitted by code to mount the device (light, receptacle, etc) to the siding itself, and then just run wires back from there into the box — the box needs to enclose all the electrical connections including those on the device itself.

   I’d prefer the surface mounted box if your siding can work with that. If you’re putting in a rainscreen, that will usually provide enough room for a box. Note that it’s sometimes easier to use 4” square boxes everywhere, and then use either a round mud ring (for lights) or a single or double gang mud ring (for receptacles). You don’t have to use round boxes to get a suitable mount for a round device.

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1. 
   MStaudaher|2019年10月28日下午2:04|＃2

   Thanks for the information. I wanted to surface mount the boxes. We are using 5/16 7.25” wide Hardi for the siding. All the exterior outlets and other exterior penetrations will be blocked with 1.5” thick forest trim. If I do the method you described I should end up with the boxes essentially flush with the surface of the trim blocks.