BlueMoon
23rd December 2007, 04:52 PM
I live on the Pacific Coast of Washington state. I am new to bamboo, but love everything about it. As a result, I decided to build a new fence out of bamboo. After much research, I decided to purchase the bamboo from (editors note: name of company removed).
I bought seventeen 6x8-foot panels of 1-inch bamboo to build my 145-foot fence. The cost was $86 per panel. The bamboo arrived on three pallets, each panel rolled up and tied up in a woven plastic bag.
When I started opening the bags, a bunch of crystals fell out on my garage floor and made the floor wet. I have since learned that this was desiccant, included to absorb moisture from the bamboo. When I questioned my salesman, I was told it was nothing to worry about. I have since learned that the bamboo was probably not dried properly after it was cut.....
I built the fence in August and September of this year, during a very dry and warm period of weather here in the Pacific Northwest, and this is how it looked on September 15th:
http://members.aol.com/kathyk1296/F1 (images have been removed by original poster)
The bamboo had a powdery mold on it in this photo, but it was not visible at that distance.
By October 17th, the fence looked like this:
http://members.aol.com/kathyk1296/F2
http://members.aol.com/kathyk1296/F3
http://members.aol.com/kathyk1296/F4
The bamboo was very discolored by the mold, with some culms totally black in color.
I again called the company I purchased the materials from and was told to "just spray a bleach solution on it and rinse it off with the hose, that it was nothing to worry about." Well, I tried that and a lot of the mold did not come off, even when I scrubbed it by hand with a brush and a bleach solution. The mold seemed to be ingrained in the bamboo. After two weeks, the mold was returning with a vegeance.
I next purchased a pressure washer and spent countless hours trying to clean the mold off of the bamboo. I sprayed up and down each individual culm, to be sure I was optimally cleaning the sides of the culms as well as the face, and did this on both sides of the fence. Even with pressure-washing at a distance of one inch and holding the sprayer in place for several minutes, there were many areas where the mold could simply not be removed. It seemed to be ingrained in the culms from the inside out.
After the pressure washing, the fence still looked like this in some areas:
http://members.aol.com/kathyk1296/F5
I knew there was only a small window of time before the mold would once again return, so I quickly purchased a stain/sealer from Sherwin Williams and spent several days carefully applying this by brush to all visible surfaces of the culms. I finished this the first week of November. It was a fortunate stroke of luck that the rainy and cooler winter season did not begin here until the end of November this year.
It's been over six weeks since I sealed the bamboo. I can see mold starting to appear in places and know I will have to get out there soon to try to remove it. I see ongoing maintenance of the bamboo as my new future.
One of the reasons I built a bamboo fence was because I was led to believe that it would be a low-maintenance or no-maintenance fence. I was told that I could seal it in a year or so once it had a chance to weather a bit, or that I could just let it naturally and slowly go gray. I never expected the extreme amount of maintenance I've already had to do, or what it appears I will continue to have with this fence. I know there must be mold on the ends of the culms that is hidden by the fence framing. What will happen there?
The company I purchased the materials from claims that I am the only customer of theirs that this has happened to. That seems very hard for me to believe. I have since talked with other bamboo dealers and have been told that this should not have happened. That if they receive bamboo with mold on it from their suppliers, they ship it back to them. I've seen a bamboo fence in Seattle that has been there for years and never been treated with any product, and it has no mold on its surface.
The company also blames it on the climate I live in and says all fences in my area will have mold on them. Well, I've driven around my town and I don't see this happening, on any kind of fence. The cedar fence I was replacing was very old and it had no mold on it whatsoever.
I would really appreciate hearing input from others who have built fences or other things outdoors in similar climates and what their experiences have been with mold, if any.
Thank you very much and Happy Holidays,
BlueMoon
I bought seventeen 6x8-foot panels of 1-inch bamboo to build my 145-foot fence. The cost was $86 per panel. The bamboo arrived on three pallets, each panel rolled up and tied up in a woven plastic bag.
When I started opening the bags, a bunch of crystals fell out on my garage floor and made the floor wet. I have since learned that this was desiccant, included to absorb moisture from the bamboo. When I questioned my salesman, I was told it was nothing to worry about. I have since learned that the bamboo was probably not dried properly after it was cut.....
I built the fence in August and September of this year, during a very dry and warm period of weather here in the Pacific Northwest, and this is how it looked on September 15th:
http://members.aol.com/kathyk1296/F1 (images have been removed by original poster)
The bamboo had a powdery mold on it in this photo, but it was not visible at that distance.
By October 17th, the fence looked like this:
http://members.aol.com/kathyk1296/F2
http://members.aol.com/kathyk1296/F3
http://members.aol.com/kathyk1296/F4
The bamboo was very discolored by the mold, with some culms totally black in color.
I again called the company I purchased the materials from and was told to "just spray a bleach solution on it and rinse it off with the hose, that it was nothing to worry about." Well, I tried that and a lot of the mold did not come off, even when I scrubbed it by hand with a brush and a bleach solution. The mold seemed to be ingrained in the bamboo. After two weeks, the mold was returning with a vegeance.
I next purchased a pressure washer and spent countless hours trying to clean the mold off of the bamboo. I sprayed up and down each individual culm, to be sure I was optimally cleaning the sides of the culms as well as the face, and did this on both sides of the fence. Even with pressure-washing at a distance of one inch and holding the sprayer in place for several minutes, there were many areas where the mold could simply not be removed. It seemed to be ingrained in the culms from the inside out.
After the pressure washing, the fence still looked like this in some areas:
http://members.aol.com/kathyk1296/F5
I knew there was only a small window of time before the mold would once again return, so I quickly purchased a stain/sealer from Sherwin Williams and spent several days carefully applying this by brush to all visible surfaces of the culms. I finished this the first week of November. It was a fortunate stroke of luck that the rainy and cooler winter season did not begin here until the end of November this year.
It's been over six weeks since I sealed the bamboo. I can see mold starting to appear in places and know I will have to get out there soon to try to remove it. I see ongoing maintenance of the bamboo as my new future.
One of the reasons I built a bamboo fence was because I was led to believe that it would be a low-maintenance or no-maintenance fence. I was told that I could seal it in a year or so once it had a chance to weather a bit, or that I could just let it naturally and slowly go gray. I never expected the extreme amount of maintenance I've already had to do, or what it appears I will continue to have with this fence. I know there must be mold on the ends of the culms that is hidden by the fence framing. What will happen there?
The company I purchased the materials from claims that I am the only customer of theirs that this has happened to. That seems very hard for me to believe. I have since talked with other bamboo dealers and have been told that this should not have happened. That if they receive bamboo with mold on it from their suppliers, they ship it back to them. I've seen a bamboo fence in Seattle that has been there for years and never been treated with any product, and it has no mold on its surface.
The company also blames it on the climate I live in and says all fences in my area will have mold on them. Well, I've driven around my town and I don't see this happening, on any kind of fence. The cedar fence I was replacing was very old and it had no mold on it whatsoever.
I would really appreciate hearing input from others who have built fences or other things outdoors in similar climates and what their experiences have been with mold, if any.
Thank you very much and Happy Holidays,
BlueMoon