Unless you're really good with a caulk gun, I'd recommend butyl tape instead at outdoor camera connection points like where the sunshield connects to the wall arm or pendant, just looks neater. Over time silicone starts to look dirty. Some camera manufacturers also include a little "boot" to cover the joint after you tape it. You definitely don't want this!
I noticed you silicon sealing entirely around the mount, I was taught you should leave the bottom unsealed to allow for drainage if there is water intrusion, Any thoughts?
I’ve heard that claim, but I don’t know anyone personally who does it. I prefer to not leave gaps because they tend to be an entry point for dust and insects sooner or later. I do believe some mounts also have weeping holes in the bottom tomdrip moisture, but that seems increasingly rare.
If you do not seal all the way around the camera mount, you risk introducing moisture into the camera. I have seen cases where the inside of the camera has moisture from not being sealed properly.
I've always seen older camera installs on exterior walls with a box, and a flex conduit to the camera. We don't do it this way, but it seems like a good way to avoid water intrusion.
All of our exterior cameras use silicon, gaskets, grommets, and cable glands. I tend to leave a small portion at the bottom of the backbox un-siliconed to allow for any potential water that may become entrapped in the backbox. So far, I haven't experienced many issues withwater damage, and I think using cable glands and caulking the cable penetration holes will keep dust/insects from getting to the connections or in the building and allow protection for any potential water that does enter the box.
I've found one way to prevent or minimize blowouts in concrete is to switch the hammer drill from rotary+impact to rotary only for the final bit of drilling, and literally scrape the material away with the carbide tip of the bit. This requires that you know the thickness of the wall and measure it as you drill, and be mindful of how much pressure you're putting on it.
That was an Axis Q3707-PVE, I believe. The mount is one of their add on T91G61 models.
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Comments (13)
Undisclosed End User #1
Great report!
The EIFS link is dead.
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Lynn Harold
Unless you're really good with a caulk gun, I'd recommend butyl tape instead at outdoor camera connection points like where the sunshield connects to the wall arm or pendant, just looks neater. Over time silicone starts to look dirty. Some camera manufacturers also include a little "boot" to cover the joint after you tape it. You definitely don't want this!
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Undisclosed Manufacturer #2
Great piece John!
Thank you
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John Dornik
IPVMU Certified | 04/08/19 12:09am
I noticed you silicon sealing entirely around the mount, I was taught you should leave the bottom unsealed to allow for drainage if there is water intrusion, Any thoughts?
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Aaron Verzotti
I've always seen older camera installs on exterior walls with a box, and a flex conduit to the camera. We don't do it this way, but it seems like a good way to avoid water intrusion.
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Tan Tharp
All of our exterior cameras use silicon, gaskets, grommets, and cable glands. I tend to leave a small portion at the bottom of the backbox un-siliconed to allow for any potential water that may become entrapped in the backbox. So far, I haven't experienced many issues withwater damage, and I think using cable glands and caulking the cable penetration holes will keep dust/insects from getting to the connections or in the building and allow protection for any potential water that does enter the box.
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Undisclosed Integrator #3
I've found one way to prevent or minimize blowouts in concrete is to switch the hammer drill from rotary+impact to rotary only for the final bit of drilling, and literally scrape the material away with the carbide tip of the bit. This requires that you know the thickness of the wall and measure it as you drill, and be mindful of how much pressure you're putting on it.
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Undisclosed Manufacturer #5
Anyone know the camera model in the video that demonstrates mounting a camera and mount to a concrete block building using masonry screws?
Much appreciated!
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