ᐅ Issue with Rafters / Eaves – Exterior Paint

Created on: 1 May 2018 11:27
T
Trax101.P
Hello,
about 4 years ago, the eaves (rafters and boards) of the newly built semi-detached house were painted with the white satin finish Venti paint from Südwest. For about 1 year now, black spots have appeared on the white paint - see attached pictures.

Questions:
1.) Was the wrong white paint used, not weather-resistant, etc.?
2.) What could the black spots be – weathering, algae, etc.?
3.) What is the recommended approach to fix this? Sanding and repainting?

Regards,
Michael

Close-up of a gutter and downspout on a white facade


Underside of a concrete element with dust spots, sky in the background


Close-up of a dusty white wooden beam with dirt and dust marks in the shell construction


Exterior view of a house with gutter, white facade cladding, and roof edge


White roof cladding and underside with shadow, blue sky visible


Colorful paint cans on a construction site, red main can with Venti Satin paint
K
Knallkörper
1 May 2018 13:31
I agree with Nordlys. Normal weathering, no mold or unusual algae growth.
lastdrop schrieb:
Did you take the photos at my place?
It looks the same for me. As long as it doesn’t cause real damage, I’m not doing anything for now.

I would take action there, as the wood is exposed and unprotected in some spots.
N
Nordlys
1 May 2018 13:41
lastdrop, there's no way around it, you'll have to handle it yourself.
lastdrop1 May 2018 13:54
That is an aesthetic issue. If it gets wet, it will dry faster at a height of 9m (30 feet) than you can blink. Getting wet doesn’t harm the wood as long as it can dry out again.

Besides, it’s not that easy for me to get up to that height...
N
Nordlys
1 May 2018 14:29
If the builder can’t swim, it’s because of the swimsuit.
T
Trax101.P
1 May 2018 14:54
Welcome to the club!
I’m not going to take action for now either; it’s just an eyesore.
What annoys me is that my house is the only one on the street that looks like this. The other houses still look freshly painted white after five years. But as often happens, once you don’t closely supervise the contractor, you end up paying the price. The problem with fixing it is that a scaffold has to be set up because the ridge is 9 meters (30 feet) high, and there is also an additional light well on the side. So it’s work that wouldn’t be necessary otherwise. To make matters worse, the dormer is also affected.
W
Witch
1 May 2018 17:34
Why use scaffolding? A ladder with a stand-off is enough. Last year, I painted the entire roof soffit up to the gable with a lattice using this method. (-: