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Mounting Outdoor TV to Concrete Block Walls

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Mounting Outdoor TV to Concrete Block Walls

Old 12-08-2018, 07:41 PM
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Default Mounting Outdoor TV to Concrete Block Walls

I am mounting a 50" TV in the lanai and it will be on a concerete block/stucco wall.

Whats the best method? Tapcons? Wall anchors and lag bolts? Other?

The TV weighs 30lbs.
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Old 12-08-2018, 07:48 PM
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After a lot of research and talking to my building inspector/former contractor friend, I decided on wedge anchors to mount mine to a brick wall.

https://www.homedepot.com/p/Simpson-...2R25/300591986

I picked a bolt size that just fit into the mount holes.... I put in a few tapcons extra for good measure. It’s holding strong after a year.
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Old 12-08-2018, 07:48 PM
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I've had the expanding shield lag bolt anchors fall out. If the lag bolt backs out a little over time, the shield becomes loose in the hole. Concrete block is made from very brittle, crumbly concrete. It's hard to get any anchor to really hold tightly in concrete block. Epoxy anchors work great but are expensive. Tapcons are good in concrete block but can easily be over tightened and stripped. Don't over tighten and they will last.



Thru-bolting is sure to last as long as the wall.
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Old 12-08-2018, 07:57 PM
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Tapcons will do fine.
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Old 12-08-2018, 08:01 PM
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Personally I would Hilti epoxy with their screen inserts and threaded rod but I have that stuff laying around. No way would I use tapcons as only method.
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Old 12-08-2018, 08:14 PM
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No matter how you attach the bracket, make sure the bracket allows for the TV to be quickly and easily removed. We have gone through a few “outdoor” tv’s now and none of them seem to last more than two years. We have ours mounted under a covered area in a box with a hinged cover that is raised to watch TV and lowered and latched in place when not in use. I don’t know if it’s the high Tampa Bay humidity or the close proximity to salt water (we live on the ICW), either way, they never get direct or indirect water on them, but they won’t last longer than two years when mounted. It’s gotten to the point now that we just unscrew the cable and remove it and store it inside when not in use.
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Old 12-09-2018, 05:37 AM
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30# for tv, 10 for mount at most. 4 tapcons would hold that easy.
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Old 12-09-2018, 05:50 AM
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What type of mount? Is it a cantilevered type? If it’s just a typical flat wall mount Tapcons will be more than enough. Your pull out force will be close to zero.
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Old 12-09-2018, 06:00 AM
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another vote for tapcon's. I'd use the 1/4" diameter ones.
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Old 12-09-2018, 06:12 AM
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Old 12-09-2018, 06:13 AM
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Originally Posted by fun ticket View Post
I am mounting a 50" TV in the lanai and it will be on a concerete block/stucco wall.

Whats the best method? Tapcons? Wall anchors and lag bolts? Other?

The TV weighs 30lbs.
Hillman Strap toggles
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Old 12-09-2018, 06:13 AM
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Originally Posted by offshorebri View Post
What type of mount? Is it a cantilevered type? If it’s just a typical flat wall mount Tapcons will be more than enough. Your pull out force will be close to zero.
It is a mount that tilts slightly.

I was thinking tapcons but my only reservation is when i used them in my garage to mount various things, shovels, etc. I'd say about 50 percent of the time they feel like they got a good bite and the rest so so. Seemed to be just luck of the draw since I used the same drill bit and mount process.

Also, if I use tapcons any benefit to putting some constructive adhesive on the tv mount as an added bit of insurance. The mount is a universal mount so if I have to replace later it should accomodate the next TV.

Thoughts?
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Old 12-09-2018, 06:16 AM
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Old 12-09-2018, 06:19 AM
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Originally Posted by fun ticket View Post
It is a mount that tilts slightly.

I was thinking tapcons but my only reservation is when i used them in my garage to mount various things, shovels, etc. I'd say about 50 percent of the time they feel like they got a good bite and the rest so so. Seemed to be just luck of the draw since I used the same drill bit and mount process.

Also, if I use tapcons any benefit to putting some constructive adhesive on the tv mount as an added bit of insurance. The mount is a universal mount so if I have to replace later it should accomodate the next TV.

Thoughts?
That is why I said use the Hillman Toggles.......Tapcons in concrete but I have had trouble with them pulling out of block (crumbling).
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Old 12-09-2018, 06:20 AM
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I would have the wall knocked down and rebuilt. Have lag boltsadded to the block as it is being formed at the plant. Then when they put the block up have them pour the wall with concrete for added strength.
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Old 12-09-2018, 06:21 AM
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The sheer strength of wedge anchors says you don't need tap cons. For a 30lb tv four wedge anchor would be more than enough, if you want to get stupid crazy anal then install six.
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Old 12-09-2018, 06:22 AM
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I've had multiple tv's, the first one being real heavy, hanging on the patio wall for many years and 4 tapcons are just fine. If you don't trust 4, use 6. Or to be safe, use MIKELOWE's idea to sandwich the wall between two 3" steel plates with 1" threaded rods.
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Old 12-09-2018, 06:24 AM
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I have one on an adjustable mount with Tapcons. Been fine for over a year now.
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Old 12-09-2018, 06:29 AM
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I used 4 tap cons to mount mine to a concrete block wall. It’s plenty strong.
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Old 12-09-2018, 07:17 AM
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I mounted my television on the screened in porch and used Tapcons. 40" on a cantilever mount. For the record I do commercial installations of interactive panels in schools and have thousands under my belt without a single failure. The key to Tapcons is making sure you use the correct size drill bit, make sure to drill the hole to the proper depth, and do not over tighten. Use too small of a drill bit, don't drill the hole deep enough, or over tighten and you will snap a Tapcon!
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