Ceiling prep for textured ceiling spray
#1
08-20-16, 03:12 PM
Ceiling prep for textured ceiling spray
Hi!
I just finished applying spray foam to our basement rim joists. I have replaced the ceiling with new drywall and am planning on spraying (with a hopper sprayer) with CGC Synko "Span-Tex" (https://www.usg.com/content/usgcom/e...g-texture.html).
My question: How smooth / finished should the ceiling be in terms of sanding / finishing Will any imperfections should through into the texture? Do the seams have to be well finished? This is what the Span-Tex looks like, I want to match it with this picture:
Since the Span-Tex is quite random, I am thinking that it would hide imperfections somewhat, but how much is the question I'm asking. Anyone?
I just finished applying spray foam to our basement rim joists. I have replaced the ceiling with new drywall and am planning on spraying (with a hopper sprayer) with CGC Synko "Span-Tex" (https://www.usg.com/content/usgcom/e...g-texture.html).
My question: How smooth / finished should the ceiling be in terms of sanding / finishing Will any imperfections should through into the texture? Do the seams have to be well finished? This is what the Span-Tex looks like, I want to match it with this picture:
Since the Span-Tex is quite random, I am thinking that it would hide imperfections somewhat, but how much is the question I'm asking. Anyone?
#2
08-20-16, 03:16 PM
Group Moderator
It should be perfectly smooth before applying the texture. Unless you want to see all the edges that should have been skimmed and sanded.
#4
08-20-16, 03:36 PM
Group Moderator
Dips will still appear as dips (shadows) and sharp edges will still be seen. A splatter texture (like you pictured) does not cover 100% and is not a good way to hide a poor job. Acoustical texture is a little more forgiving, but you still want a pretty smooth surface.
#5
08-20-16, 03:40 PM
..... and it's better to spend a little extra time now getting the finish right than having to go back and fix it after it's textured or see the defects every time you enter the room.
#8
08-20-16, 03:48 PM
Using a sanding pole to do most of the sanding will help you achieve a flat finish as the pole sander holds the sandpaper flat .... unlike holding folded sandpaper in your hand. Be sure to remove the sanding dust prior to applying the texture.
#10
08-20-16, 03:55 PM
Depends on who you talk to 
The texture will dry at a more even rate if the drywall is primed first but the texture needs primer before you apply paint. I've always skipped priming before texture and primed after the texture dries.
The texture will dry at a more even rate if the drywall is primed first but the texture needs primer before you apply paint. I've always skipped priming before texture and primed after the texture dries.
#13
08-20-16, 04:07 PM
I have to decide if I'm going to prime before I spray texture or not... but if I'm going to paint the entire ceiling anyways, maybe I should prime after I texture. Otherwise I would have to prime before and after the texture.. I hope I'm making sense, LOL!
#14
08-21-16, 04:12 AM
Having to prime the texture is the main reason I don't prime prior to applying the texture. While the texture will dry at a more even rate if applied over primer, it doesn't affect how it adheres to the drywall. Texture over primer will dry a little slower.
It doesn't really matter if the primer is sprayed or rolled although I'm not fond of spraying in an occupied dwelling as the effort required to contain the overspray is often more than eats up the time saved applying the primer/paint.
It doesn't really matter if the primer is sprayed or rolled although I'm not fond of spraying in an occupied dwelling as the effort required to contain the overspray is often more than eats up the time saved applying the primer/paint.
#15
08-21-16, 08:01 AM
Group Moderator
I have had a couple bad experiences painting ceilings where very old texture has come off the ceiling... (looked fine when i left) peeling away from the drywall as the paint dried and it absorbed the new coat of paint. (Had pulled away and peeled when I came back and it was dry) I always assumed it was because the texture was applied over an unprimed or dusty surface... but I guess there could have been another factor, like a roof leak or something that caused the texture to lose its bond with the drywall.
#17
08-21-16, 10:38 AM
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Textured ceiling or wall is a great idea... especially if you put the wall ceiling dry-wall yourself. Excluding professionals, drywall is extremely difficult to put up without having any obvious imperfections. My lady and I learned that first hand haha
Anyways, good luck
Anyways, good luck
#18
08-21-16, 11:16 AM
I have had a couple bad experiences painting ceilings where very old texture has come off the ceiling... (looked fine when i left) peeling away from the drywall as the paint dried and it absorbed the new coat of paint.
#19
08-21-16, 11:35 AM
Group Moderator
Often texture is left unpainted and unpainted texture will degrade over time because of the humidity in the air. Adding wet paint to it often makes it turn loose
#20
08-21-16, 11:37 AM
The odds are someone neglected to sweep the dust off of the drywall before the texture was sprayed 
A remote possibility is the texture came close to freezing as it dried which would also make for a poor bond.
A remote possibility is the texture came close to freezing as it dried which would also make for a poor bond.
