I recently had some rainwater leak into my house and, as a result, there is
now a yellow ring (about the size of a basketball) on my ceiling.
My drywall in this area feels normal to the touch (not spongy) and the
ceiling shows not signs of sagging.
Do I need to cut out and replace this area of discoloration or can I simply
apply a coat of paint?
Thanks for any insight?
You can simply paint it. If it starts to sag later, you've
lost nothing except a little paint.
You must prime it with a good quality primer or the water
stain will bleed through the new paint. Shellac-based Kilz is a good
Nit-picking here, Kilz is Alkyd based (i.e synthetic alcohol solvent) thins
and/or cleans up with Mineral Spirts or Naphtha.
Zinssers B-I-N is a white pigmented Shellac based product (which I can't
imagine anyone needing to thin). Cleanup is with denatured alcohol or ammonia.
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