What's wrong here? - Paint Talk

BPC · 07-01-2015, 07:19 PM

We started this exterior today . So everything looks like the first pic and anything you scrape turns to the second pic. The house was painted 5 years ago with sher kril. The homeowner said they pressure washed with a vengance which is clear from the scored wood we have seen. Then started painting a day later no scraping no priming told the HO that what the pressure washer was for. Trying to determine the main cause of the peeling soffits the rest is normal peeling of chipping.

slinger58 · 07-01-2015, 07:32 PM

Could be that's what vengeful pressure washing will get ya. Especially on plywood. I notice the solid stock siding and trim aren't peeling. Usually paint peeling back to the substrate is an indication of moisture getting behind the paint film.

epretot · 07-01-2015, 09:50 PM

Check the back of chip for a crystal salty looking film.

chrisn · 07-02-2015, 03:27 AM

Quote:

Originally Posted by BPC

We started this exterior today . So everything looks like the first pic and anything you scrape turns to the second pic. The house was painted 5 years ago with sher kril. The homeowner said they pressure washed with a vengance which is clear from the scored wood we have seen. Then started painting a day later

no scraping no priming

told the HO that what the pressure washer was for. Trying to determine the main cause of the peeling soffits the rest is normal peeling of chipping.

nuff said

Epoxy Pro · 07-02-2015, 06:21 AM

Any time you PW and paint with in a 5 day period your risking paint failure.

PACman · 07-02-2015, 08:37 AM

Quote:

Originally Posted by cdpainting

Any time you PW and paint with in a 5 day period your risking paint failure.

Especially when there is no place for the moisture to go but to lay on top of the paint film.

BPC · 07-02-2015, 12:04 PM

Yes it is a losing battle all the wood is damaged the fibers look like straw underneath when we scrape and sand.

Gymschu · 07-02-2015, 04:56 PM

I see quite a few of these type of plywood soffits here in Ohio. My conclusion over the years has been lack of ventilation which leaves moisture to accumulate on the attic side of the plywood which eventually pushes the paint off. Those little vents just don't seem to allow much air to circulate and dissapate the moisture.

PACman · 07-02-2015, 05:14 PM

Quote:

Originally Posted by Gymschu

I see quite a few of these type of plywood soffits here in Ohio. My conclusion over the years has been lack of ventilation which leaves moisture to accumulate on the attic side of the plywood which eventually pushes the paint off. Those little vents just don't seem to allow much air to circulate and dissapate the moisture.

That is what I have on my house. Did the whole scrape and re-prime/paint thing but it is still having adhesion issues in some areas. The only solution I have found is to use a long oil alkyd primer. I have had people suggest that I drill some weep holes in it also.

BPC · 07-02-2015, 07:41 PM

We typically scrape oil prime peelbond and paint. If that doesnt hold we recommend moving.

straight_lines · 07-02-2015, 08:54 PM

Quote:

Originally Posted by BPC

Trying to determine the main cause of the peeling soffits the rest is normal peeling of chipping.

If the roof is leaking then it will cause soffits to do this. Many times it won't show up in side and run down the rafters until it hit the soffit. Leaks could also be in the overhangs instead of over the house.

BPC · 07-02-2015, 10:35 PM

The weird thing about the soffits is there are no water stains anywhere but plenty of water stain and damage from the pressurewasher.

07-01-2015, 07:19 PM	#1
BPC Senior Member Join Date: Jan 2015 Location: wisconsin Posts: 491 Rewards Points: 136 Thanks: 20 Thanked 274 Times in 146 Posts My Photos	What's wrong here? We started this exterior today . So everything looks like the first pic and anything you scrape turns to the second pic. The house was painted 5 years ago with sher kril. The homeowner said they pressure washed with a vengance which is clear from the scored wood we have seen. Then started painting a day later no scraping no priming told the HO that what the pressure washer was for. Trying to determine the main cause of the peeling soffits the rest is normal peeling of chipping. Attached Thumbnails

07-01-2015, 09:50 PM	#3
epretot Senior Member Join Date: Dec 2011 Location: Cincinnati, OH Posts: 1,897 Rewards Points: 2,338 Thanks: 707 Thanked 1,556 Times in 778 Posts My Photos	Check the back of chip for a crystal salty looking film. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

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07-01-2015, 07:32 PM	#2
slinger58 Senior Member Join Date: Feb 2013 Location: Central MS Posts: 5,783 Rewards Points: 82 Thanks: 9,863 Thanked 5,842 Times in 3,153 Posts My Photos	Could be that's what vengeful pressure washing will get ya. Especially on plywood. I notice the solid stock siding and trim aren't peeling. Usually paint peeling back to the substrate is an indication of moisture getting behind the paint film.

07-02-2015, 06:21 AM	#5
Epoxy Pro Senior Member Join Date: Oct 2012 Location: Delete this account Posts: 8,761 Rewards Points: 250 Thanks: 4 Thanked 13 Times in 12 Posts My Photos	Any time you PW and paint with in a 5 day period your risking paint failure.

07-02-2015, 12:04 PM	#7
BPC Senior Member Join Date: Jan 2015 Location: wisconsin Posts: 491 Rewards Points: 136 Thanks: 20 Thanked 274 Times in 146 Posts My Photos	Yes it is a losing battle all the wood is damaged the fibers look like straw underneath when we scrape and sand.

07-02-2015, 04:56 PM	#8
Gymschu Senior Member Join Date: Mar 2011 Location: Eastern Ohio (Appalachia) Posts: 1,373 Rewards Points: 110 Thanks: 1,638 Thanked 823 Times in 452 Posts My Photos	I see quite a few of these type of plywood soffits here in Ohio. My conclusion over the years has been lack of ventilation which leaves moisture to accumulate on the attic side of the plywood which eventually pushes the paint off. Those little vents just don't seem to allow much air to circulate and dissapate the moisture.

07-02-2015, 07:41 PM	#10
BPC Senior Member Join Date: Jan 2015 Location: wisconsin Posts: 491 Rewards Points: 136 Thanks: 20 Thanked 274 Times in 146 Posts My Photos	We typically scrape oil prime peelbond and paint. If that doesnt hold we recommend moving.

07-02-2015, 10:35 PM	#12
BPC Senior Member Join Date: Jan 2015 Location: wisconsin Posts: 491 Rewards Points: 136 Thanks: 20 Thanked 274 Times in 146 Posts My Photos	The weird thing about the soffits is there are no water stains anywhere but plenty of water stain and damage from the pressurewasher.