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11hausbau22 Jun 2014 16:03About three years ago, we renovated our roof and chose a dark gray Koramic Actua 10 tile. The tile was somewhat more expensive than a standard option, but you do a lot for the appearance. After all, you look at the roof tile for a very long time.
By now, there is noticeable green growth or moss forming on the north side. Nearby, another house that was renovated around the same time with the same Koramic Actua 10 tile shows a similar "green soiling," despite a completely different environment (no direct trees nearby, less ground vegetation, higher building height, etc.) but the same north-facing orientation. This leads me to conclude that the green growth on this tile is perhaps "by design" and not caused by the immediate surroundings of the house.
- I am interested in whether this is due to the Actua 10 product itself (poor-quality tile?) – has anyone had experience with this?
- At what point does the green growth become such a significant cosmetic defect that there is a reasonable chance of a successful warranty claim or complaint?
- Are there any standards, regulations, or guidelines regarding this?
- What cost-effective or sustainable solutions exist to combat green growth?
Customer service from Wienerberger dismissed my concerns, so I do not expect any support from them. Our disappointment with the tile is very high, and at the same time, we feel left in the lurch (including the costs for roof cleaning that will arise every few years – so the tile ends up being an expensive affair for us).
Experiences with this tile and green growth on roofs are very welcome!
By now, there is noticeable green growth or moss forming on the north side. Nearby, another house that was renovated around the same time with the same Koramic Actua 10 tile shows a similar "green soiling," despite a completely different environment (no direct trees nearby, less ground vegetation, higher building height, etc.) but the same north-facing orientation. This leads me to conclude that the green growth on this tile is perhaps "by design" and not caused by the immediate surroundings of the house.
- I am interested in whether this is due to the Actua 10 product itself (poor-quality tile?) – has anyone had experience with this?
- At what point does the green growth become such a significant cosmetic defect that there is a reasonable chance of a successful warranty claim or complaint?
- Are there any standards, regulations, or guidelines regarding this?
- What cost-effective or sustainable solutions exist to combat green growth?
Customer service from Wienerberger dismissed my concerns, so I do not expect any support from them. Our disappointment with the tile is very high, and at the same time, we feel left in the lurch (including the costs for roof cleaning that will arise every few years – so the tile ends up being an expensive affair for us).
Experiences with this tile and green growth on roofs are very welcome!
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11hausbau11 Jul 2014 12:35Thank you for your response. The standard roof pitch has been observed. Our roof has a pitch of approximately 40-45 percent.
A similar roof with moss growth in the same locality has about the same pitch. It even benefits from better conditions since potential growth of shrubs is further away and the roof is higher (allowing better drying due to wind).
I suspect a defect in the roof tile, especially because this occurs on very different houses and configurations with a steeper roof pitch.
A similar roof with moss growth in the same locality has about the same pitch. It even benefits from better conditions since potential growth of shrubs is further away and the roof is higher (allowing better drying due to wind).
I suspect a defect in the roof tile, especially because this occurs on very different houses and configurations with a steeper roof pitch.
1
11hausbau11 Jul 2014 12:38Thank you for your reply. The standard roof pitch has been followed. Our roof has a pitch of about 40-45 percent.
A similar roof with moss growth in the same town has almost the same pitch. This roof even benefits from more favorable conditions because potential shrub growth is further away, and the roof is higher (allowing better drying from the wind).
I suspect a defect in the roof tile, especially since this occurs on very different houses and layouts with a steeper roof pitch.
A similar roof with moss growth in the same town has almost the same pitch. This roof even benefits from more favorable conditions because potential shrub growth is further away, and the roof is higher (allowing better drying from the wind).
I suspect a defect in the roof tile, especially since this occurs on very different houses and layouts with a steeper roof pitch.
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11hausbau11 Jul 2014 15:03Sure, 40-45 degrees Celsius (104-113 degrees Fahrenheit).
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