Flashing

kenscar

I'm painting a new home exterior that's covered in Hardie Board siding. Used two coats of Anchor's satin flexi paint, which is good stuff. I cut in the edges of the walls by hand about two feet, then sprayed the large middle zones with my airless. Unfortunately, I discovered today that one side of this building - of course the side that is most visible - faces north, and when the sun comes up it shines straight across and creates TERRIBLE flashing that I could see from three blocks away as I was driving to the site this morning. It's where the edges of my spray lines meet where I hand painted. WTF? I feathered everything very carefully, and rolled the second coat so the texture would be the same everywhere. Is there anything I can do about it? By about 10:00 am the flashing disappears but it still drives me crazy. The clients are totally happy with the finished look - I don't even think they notice the flashing like I do - but it really sticks in my craw.

JBBS

While I can't help your problem I can certainly relate to it. I have worked on plenty of EIFS jobs, my own included, that look great.......22 1/2 hours a day. Darned shadows get you every time. Hope someone here can give you some actual advice

Frankawitz

What I would have done I would have primed it first with Benjamin Moore's fresh start primer, cause it sounds like the paint cover good where you brushed yet the spray was light and if you lapped over your spray you would see the flashing, I always use a good heavy primer coat then two finish coats.



www.frankawitz.net

MakDeco

Did you do all your brush work first? If so it probably was completely dry by the time you sprayed it. I am not familiar with that product so can't comment on that part.

The few hardi boards I did we rolled and backed brushed a few boards at a time with Moorgard and no flashing that I was aware of.

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MAK Deco

Mike's QP

did you 2 coat the middle sections? if not that would do it also, why didnt you spray all the way to the edges, and then trim it out?

kenscar

Everything got two coats. Didn't spray to the edges because the trim is white and the body is a rich red. White don't cover no red. Hm . . . the brush work probably was dry before I sprayed over to it. Didn't think that would be a problem but . . .

kenscar

Didn't prime it because all hardie board comes pre-primed.

capital city

maybe it has something to do with the sheen. I dont spray much but when I have the semi gloss trim didnt look semi gloss anymore looked more satin. maybe a slight difference in sheen is giving you the flashing since its only for a few hours.

MakDeco

I know a lot of guys who do not trust that primer that comes on Hardi board and prime with 100% acrylic prior to painting.

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MAK Deco

kenscar

Capital city - I think you may have something there. It definitely looks like different sheens, not textures.

MakDeco

Does the brushed areas look shinier? more paint in those areas compared to sprayed areas.

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MAK Deco

Mike's QP

well the only way to fix it would be to spray it all corner to corner, or brush and roll it all, probably would have been a good idea to mask off the corners and sprayed right to them

kenscar

Probably - except the time it would have taken to do that was not in my bid. This GC, like most GC's, wanted the most economical job done.

Actually, the areas where I sprayed look glossier than the areas I brushed. Maybe it's because they are smoother?

kenscar

By-the-way - I went ahead and brushed and rolled the entire lower half of the wall and it didn't fix the problem.

MakDeco

Did you sand it before the brush and roll? if not maybe you still have more product in the corners because of the initial brush work, or maybe its the product then. I know you mentioned the product you used as I am not familiar with that brand to comment.

I have had flashing issues inside with picture framing etc on interior eggshell finishes and sometime it didn't matter how man coats where on it still looked crappy.. sometimes some products aren't good and its not our technique.

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MAK Deco

MakDeco

Thats part of the problem as well....

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MAK Deco