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Hanging TV Outside on Hardie Board

Posted on 11/6/19 at 7:45 am
Posted by bmfb6
New Orleans
Member since Jan 2004
188 posts
Posted on 11/6/19 at 7:45 am
I've never done this before. Does anyone have any good tips on how to attach the bracket and make things level enough?
Posted by fishfighter
RIP
Member since Apr 2008
40026 posts
Posted on 11/6/19 at 8:02 am to
Use these, but make sure you have a idea of what is in the wall before drilling. To not go in deep, put some electoral tape around your drill bit about 1 1/2" from the tip as a gauge.

LINK
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 11/6/19 at 8:06 am to
Agree. The osb or plywood substrate with an anchor like that will hold pretty much anything. Obviously hitting a stud directly with a lag bold it best but osb is surprisingly strong.
Posted by Drop4Loss
Birds Eye Of Deaf Valley
Member since Oct 2007
3866 posts
Posted on 11/6/19 at 10:03 am to
I would not go only into the siding.

You need to attach to the wall studs. Into the studs, you are not putting the load on the siding.

That hardie, can chip and crack easily
This post was edited on 11/6/19 at 10:05 am
Posted by Zappas Stache
Utility Muffin Research Kitchen
Member since Apr 2009
38708 posts
Posted on 11/6/19 at 10:39 am to
quote:

I would not go only into the siding.


This. Hardie Board is very brittle and can easily crack. I would treat it like you would drywall inside and find a stud to mount to.
Posted by halleburton
Member since Dec 2009
1519 posts
Posted on 11/6/19 at 11:18 am to
Ya'll are crazy. There is 1/2" plywood behind it, just make sure you hit that and you should be perfectly fine. TVs dont weigh 80# like they used to.

The one caveat is if you want a telescoping / full motion mount with a large tv. Then you need to hit studs.
Posted by bmfb6
New Orleans
Member since Jan 2004
188 posts
Posted on 11/6/19 at 12:20 pm to
Any suggestions on actual type of mount to use? I'm concerned that some of the larger rectangular mounts will span the hardie boards and therefore not lie flat. I guess the solution to that would just be to install some sort of spacer on the lower connections?
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
30324 posts
Posted on 11/6/19 at 1:39 pm to
quote:

Ya'll are crazy. There is 1/2" plywood behind it,


Maybe

quote:

• HardiePlank® lap siding can be installed over braced wood or steel studs, 20 gauge (33 mils) minimum to 16 gauge (54 mils) maximum, spaced a maximum of 24 in o.c. or directly to minimum 7/16 in thick OSB sheathing. See General Fastening Requirements. Irregularities in framing and sheathing can mirror through the finished application. Correct irregularities
before installing siding.


Be safe and find the studs.

Posted by chackbay
the bay area, la.
Member since Jan 2004
1745 posts
Posted on 11/6/19 at 3:38 pm to
almost all new mounts have adjustment for off center and tilt.
Posted by Boss
Member since Dec 2007
1208 posts
Posted on 11/6/19 at 4:18 pm to
Installed on hardiplank into plywood 5 years ago. No studs. No anchors. 70 inch tv. Hasn't fallen yet.
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
30324 posts
Posted on 11/6/19 at 4:30 pm to
quote:

Installed on hardiplank into plywood 5 years ago. No studs. No anchors. 70 inch tv. Hasn't fallen yet.





If there is plywood, sure thing. My point was there may not always plywood or OSB.
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 11/6/19 at 6:01 pm to
There’s always substrate regardless of what the owners manual says. You couldn’t pass an inspection without it.

Basically if a house is new enough to have hardie, it has substrate.

<- owns wood sided house w/o substrate.
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
30324 posts
Posted on 11/6/19 at 6:12 pm to
quote:

<- owns wood sided house w/o substrate.


<- owns a house built in 1980 and recently replaced wood siding areas, soffit and fascia with Hardie and does not know what is under it
This post was edited on 11/6/19 at 6:14 pm
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 11/6/19 at 6:15 pm to
Let me start this over: no one is hanging a tv on just hardie.

Posted by fishfighter
RIP
Member since Apr 2008
40026 posts
Posted on 11/6/19 at 7:45 pm to
quote:

Let me start this over: no one is hanging a tv on just hardie.


This.
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
30324 posts
Posted on 11/6/19 at 9:55 pm to
quote:

Let me start this over: no one is hanging a tv on just hardie.


Agreed.
Posted by CarRamrod
Spurbury, VT
Member since Dec 2006
57457 posts
Posted on 11/7/19 at 9:27 am to
i cut 2 2x4s to match the hardie and drilled them into studs. then screed the mount into that let me find a pic.
Posted by Mr. Blutarski
Hattiesburg, MS
Member since Oct 2012
1758 posts
Posted on 5/6/20 at 9:58 pm to
I'm doing this tomorrow. Will a stud finder go through hardie?

I've got power running to the corner nearest the family room with a corner mount. Anything extra I need to be careful of?
Posted by lowhound
Effie
Member since Aug 2014
7544 posts
Posted on 2/2/22 at 4:45 pm to
Looking into doing this. Is there a product to help you mount your TV flat against the hardie board? Something contoured to the siding similar to this?



I know they make mounting blocks for vinyl siding, but not sure on hardie. Is it necessary or would you just mount it straight through the hardie board? I definitely have OSB backing.
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