Round marks on old and new exterior paint
#1
09-10-16, 01:14 PM
Round marks on old and new exterior paint
Hi,
Getting ready to repaint the front of the house, and am finding these round or semi circular marks in the old paint. This side is west facing, cedar clapboard, last painted around 2004.
Back then I used an oil based primer and latex top coat. Other than these marks the paint held up pretty well. There isn't any blistering or bubbling.
There's a small section that I recently washed and applied a new coat of latex paint; about July 1st. I noticed some of these same marks in the new paint. Don't know if it's the same spots telegraphing through the paint or entirely new ones forming.
Has anyone seen marks like this? They don't look like the usual pictures of blistering. I tried to avoid painting in direct sunlight.
Getting ready to repaint the front of the house, and am finding these round or semi circular marks in the old paint. This side is west facing, cedar clapboard, last painted around 2004.
Back then I used an oil based primer and latex top coat. Other than these marks the paint held up pretty well. There isn't any blistering or bubbling.
There's a small section that I recently washed and applied a new coat of latex paint; about July 1st. I noticed some of these same marks in the new paint. Don't know if it's the same spots telegraphing through the paint or entirely new ones forming.
Has anyone seen marks like this? They don't look like the usual pictures of blistering. I tried to avoid painting in direct sunlight.
#4
09-10-16, 05:06 PM
Hmm, I'm not sure they are indentations. There's a lot of them, and this is on the second story of the house. They seem mostly flush with the surface, but are a round or semicircular hairline crack in the paint.
And after two new coats of paint in July, new ones show up through the paint. Not as many it seems, but some.
If I pry at them with a putty knife the paint will come loose, but there doesn't seem to be much if any water intrusion into them.
One dumb thing I did 12 years ago was caulk under the siding laps; I've been removing as much of that old caulk as possible. Wasn't sure if that could contribute to it. Despite being caulked there is very little peeling of old paint and the siding seems solid.
And after two new coats of paint in July, new ones show up through the paint. Not as many it seems, but some.
If I pry at them with a putty knife the paint will come loose, but there doesn't seem to be much if any water intrusion into them.
One dumb thing I did 12 years ago was caulk under the siding laps; I've been removing as much of that old caulk as possible. Wasn't sure if that could contribute to it. Despite being caulked there is very little peeling of old paint and the siding seems solid.
#5
09-11-16, 03:41 AM
A blister will always be raised. Running a putty knife lightly across the spots in question will let you know if it's raised or indented. It looks like indentations to me although sometimes pics are misleading. Other possibilities for indentations is minor damage done to the siding during milling, shipping or handling prior to it being installed.
#6
09-11-16, 05:01 PM
Looks like you guys are right. I looked at more of them and they are in fact slightly indented.
From pictures online it seems like hail damage. The reason it only appears on the second story siding may be because when I bought the house in 2002, the siding was dry rotted and cracking from neglect, and for some reason was worse toward the top of the house.
I replaced much of the siding on the top half of the house with new cedar, which is noticeably less dense than the old clapboards. Maybe they dent easier?
From pictures online it seems like hail damage. The reason it only appears on the second story siding may be because when I bought the house in 2002, the siding was dry rotted and cracking from neglect, and for some reason was worse toward the top of the house.
I replaced much of the siding on the top half of the house with new cedar, which is noticeably less dense than the old clapboards. Maybe they dent easier?
#7
09-11-16, 05:45 PM
Group Moderator
No, not hail. It produces MUCH larger dents. Unless other areas look different, all those indentations are the same size... like bb's. And "bb sized hail" would not dent the siding.
#8
09-11-16, 07:14 PM
Ok. I was going by the last picture of hail damage on the bottom of this page KBR Hail
Just hoping there isn't anybody I've pissed off enough that they'd spend hours plinking away at my siding.
But, a while back my neighbor did have an incident where he told some suspicious youths that were prowling around his truck to move on. They came back later with a pellet gun and shot up the truck.
It's an unfortunate situation. The cops probably won't show up if you call, and if you confront the person who's doing something wrong they come back later for revenge.
Just hoping there isn't anybody I've pissed off enough that they'd spend hours plinking away at my siding.
But, a while back my neighbor did have an incident where he told some suspicious youths that were prowling around his truck to move on. They came back later with a pellet gun and shot up the truck.
It's an unfortunate situation. The cops probably won't show up if you call, and if you confront the person who's doing something wrong they come back later for revenge.
