Started By
Message

How to fix crown molding separating from ceiling?

Posted on 12/17/20 at 4:58 am
Posted by StringedInstruments
Member since Oct 2013
18332 posts
Posted on 12/17/20 at 4:58 am
The crown molding is pulled away from the ceiling in most of my house. Here’s a pic of one spot:



There is also molding that has warped in my bathroom, but I assume those just need to be replaced:



Suggestions for fixing this?
Posted by lsujunky
Down By The River
Member since Jun 2011
2255 posts
Posted on 12/17/20 at 5:12 am to
Damn does that even have any nails in it?:
Posted by StringedInstruments
Member since Oct 2013
18332 posts
Posted on 12/17/20 at 5:35 am to
quote:

Damn does that even have any nails in it?:



I have no idea. How could I tell?

If it needs nails, then the answer is probably no. The previous owner half assed everything in the house.
This post was edited on 12/17/20 at 5:36 am
Posted by eng08
Member since Jan 2013
5997 posts
Posted on 12/17/20 at 6:01 am to
Doesn’t look like it has nails. Use trim nails, little ones. If you can borrow an air nailer it is much easier vs using a hammer.

Use a little bead of caulk to reseal the edge to look nice. In the winter the dry air and heat in the house makes the wood shrink a little. If the caulks older or too thin it breaks and you see the cracks.

Same where the boards butt against each other.
Posted by baldona
Florida
Member since Feb 2016
20401 posts
Posted on 12/17/20 at 6:02 am to
I’m guessing you don’t have a Finish nail gun and compressor OP? Those are actually really easy fixes but should never do that in the first place.

You need a stud finder, finish nail gun, Brad nails 1.5-2”, and painters caulk.

Use a finish nail gun and put some Brad nails into the studs. So find the studs and shoot some nails into them. Then take some painters caulk between the trim and the walls to seal the gaps back up.

I’m guessing whoever did it did not nail into the studs and just drywall and they are pulling loose.
Posted by mikie421
continental shelf
Member since Nov 2008
687 posts
Posted on 12/17/20 at 6:23 am to
Use a caulk called “big stretch”
Posted by meeple
Carcassonne
Member since May 2011
9341 posts
Posted on 12/17/20 at 6:54 am to
quote:

caulk

If does not nail in, and there are still large enough gaps, they sell these “caulk saver” foam filler tubes/strips to mash in there to help fill the gap so less caulk is needed (caulk doesn’t just keep pushing in the opening). They work great.
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5264 posts
Posted on 12/17/20 at 7:03 am to
quote:

In the winter the dry air and heat in the house makes the wood shrink a little. If the caulks older or too thin it breaks and you see the cracks.

The top photo the OP posted reflects this. This should be able to be repaired by removing the old caulk and re-caulking.

The bottom photo appears to be actual separation of the molding from the ceiling/wall and likely requires re-nailing followed by re-caulking.

Posted by lsujunky
Down By The River
Member since Jun 2011
2255 posts
Posted on 12/17/20 at 7:06 am to
quote:

I’m guessing whoever did it did not nail into the studs and just drywall and they are pulling loose.


This would be my guess also.

quote:

You need a stud finder, finish nail gun, Brad nails 1.5-2”, and painters caulk.


This is the correct way to fix it.
Posted by StringedInstruments
Member since Oct 2013
18332 posts
Posted on 12/17/20 at 7:10 am to
quote:

Use a finish nail gun and put some Brad nails into the studs. So find the studs and shoot some nails into them. Then take some painters caulk between the trim and the walls to seal the gaps back up.


I’m assuming I’ll need to paint over the nails?
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5264 posts
Posted on 12/17/20 at 7:27 am to
quote:

I’m assuming I’ll need to paint over the nails?

You shouldn’t need to - 18 or16 gauge finish nails used with a nail gun have a very small head and the heads will be recessed slightly below the wood, if the pneumatic nailer pressure is set correctly

Maybe at most a small dab of white caulk or spackle compound over the nail hole.
This post was edited on 12/17/20 at 7:28 am
Posted by gumbo2176
Member since May 2018
15028 posts
Posted on 12/17/20 at 7:37 am to
You need a pneumatic finish nail gun and use 2 inch 16 gauge nails. Find the studs in the wall and push the crown tight to the wall and tight to the ceiling at the same time and nail it into the wall stud.

Chances are there is no blocking in the ceiling to get a solid ceiling joist, especially if running the same way that length of crown is running. What I do in that case is angle my gun to the left and shoot a nail and then angle the gun to the right and shoot another nail. That way the two nails go through the sheetrock on a 45 degree angle and tend to hold the crown tighter to the ceiling. Then caulk.
Posted by Salmon
On the trails
Member since Feb 2008
83525 posts
Posted on 12/17/20 at 7:54 am to
the first pic is just old caulk that has shrunk

all you need to do is recaulk

the bottom pic doesn't even look like it has been nailed into place
Posted by Drunken Crawfish
Member since Apr 2017
3822 posts
Posted on 12/17/20 at 8:34 am to
quote:

StringedInstruments


Where are you located? If I remember correctly don't you live in Cenla? Or did I make that up?

I am local and may be able to help you out with a nail gun.
This post was edited on 12/17/20 at 8:35 am
Posted by StringedInstruments
Member since Oct 2013
18332 posts
Posted on 12/17/20 at 10:45 am to
quote:

If I remember correctly don't you live in Cenla?


I’m in Birmingham. My dad has one though.
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5264 posts
Posted on 12/17/20 at 10:47 am to
quote:

Chances are there is no blocking in the ceiling to get a solid ceiling joist, especially if running the same way that length of crown is running. What I do in that case is angle my gun to the left and shoot a nail and then angle the gun to the right and shoot another nail. That way the two nails go through the sheetrock on a 45 degree angle and tend to hold the crown tighter to the ceiling.


Good tip.
Posted by Cracker
in a box
Member since Nov 2009
17669 posts
Posted on 12/17/20 at 8:18 pm to
Does no one cope their crown anymore? Goodtrim carpenters are not cheep
Posted by diat150
Louisiana
Member since Jun 2005
43470 posts
Posted on 12/17/20 at 11:08 pm to
Not if it will be painted.
Posted by Clames
Member since Oct 2010
16539 posts
Posted on 12/17/20 at 11:12 pm to
Many don't cope crown or base, can't even run shoe mold and forget setting doors, cabinets, or building closets. Good trim carpenters have moved on because builders are too cheap.
Posted by tigerstripes
Loranger, LA
Member since Aug 2006
792 posts
Posted on 12/18/20 at 9:17 am to
If you cant put your hands on a trim gun buy a box of trim head screws. They work great and hold, will be a larger diameter hole but fillable. Make sure you find the studs and have a good driver drill. I find square drive heads or similar work the best.
first pageprev pagePage 1 of 2Next pagelast page

Back to top
logoFollow TigerDroppings for LSU Football News
Follow us on Twitter, Facebook and Instagram to get the latest updates on LSU Football and Recruiting.

FacebookTwitterInstagram