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Textured walls are done with drywall compound- it is porous and will absorb a lot of paint leaving you with a very uneven and dull finish without the primer.
I'd be curious to see where the OP read that textured walls do not need primer... It would be one thing is the texture was applied OVER an existing wall, where the texture was maybe being used to hide defects, but in a new build situation lack of primer would likely result in VERY uneven uptake of paint...
I agree that PVA primer is the BEST for this situation as it SEALS the drywall and compound so that any topcoat will come out even and with the sheen that is desired.
The worst option would be the so-called "one coat paint and primer" as the manufacturers just add a thickening agent that does NOTHING to seal the surface, it just rolls on smoother but then as it dries you'll see weird patterns of where the stuff soaked into the compound. Only way to fix that is with multiple coats of expensive acrylic or shellac type primers...
Textured walls are done with drywall compound- it is porous and will absorb a lot of paint leaving you with a very uneven and dull finish without the primer.
Next question, should i "backroll" every coat, or is that unnecessary?
Next question, should i "backroll" every coat, or is that unnecessary?
That would depend on the heaviness of the texture. If the sprayer is at an angle it could create "shadows"- that would require backrolling. If the texture is a light knockdown finish you maybe able to just spray and be fine.
As a word of caution, I never let my painters spray a finish coat- priming didn't really matter in the grand scheme of things.
I think that if you're going to do the painting yourself, and the house is completely empty, you might as well just use a roller.
Best is if you can get in there before the finished floor goes down - no drop cloths needed.
Not a fan of spray painting in any way shape or form except for cars. I understand why the painters in a tract house development do it, but the additional labor of using rollers and brushes for one person doing their own personal house is not that great.
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