Don't paint unless what you're painting is really dry. In summer, if it's dry and then it rains, things might dry out enough to paint very quickly, like in a day or so. You can really only tell by touch. In spring or fall, not so much. Things will take longer to dry properly. Same idea for once it's painted. If you're using water-based paint on a hot day, it will be dry enough to take rain within a couple of hours. Oil-based would take longer. Check what it says on the can for dry to touch. If oil-based paint gets sprinkled on after it's dry to the touch, it should be okay. Water-based is more sensitive that way. If it gets wet too soon, it can absorb water and wrinkle up, though if you just let it sit it often unwrinkles after it dries but no guarantees. Neither should get really wet for at least 24 hours after painting, so while a vertical surface might be okay getting a bit wet since the water won't sit on it, a horizontal one might not since the water will sit on it.
I painted last summer on a warm day when a surprise heavy rainstorm came up. Unfortunately I was doing bottom siding on a house, with latex. The stuff I had painted an hour before was fine but the more recent stuff took splashes, partly washed off, and had to be re-done after it dried.How long should I wait to paint the exterior of my home, before it rains and after it rains.?
you should wait until it is dry especially if using oil paint as it takes much longer to dry and wont bond to a damp surface latex paint is a water base paint you should always leave a 24 hour window both before and after painting to allow bonding and drying time anddon'tt forget to caulk any cracks or you will be painting it againHow long should I wait to paint the exterior of my home, before it rains and after it rains.?
The easiest way to do the right thing is to
follow the instructions on the paint can.