Don’t try this at home!
I subjected our bamboo flooring to an extreme test.
As you probably know, bamboo flooring is one of the most dimensionally stable wood flooring around. Overseas tests indicated that bamboo is over 50% more stable than American red oak.
High stability is great for flooring as it means that expansion problems are greatly reduced.
Some time back, we conducted a test at PSB Singapore, the national testing body over here.
They immersed a bamboo flooring plank in water for 24 hours and measured the changes in its size.
After such harsh conditions, the result was impressive: only a 0.24% increase in length and 0.19% increase in width. This equals an increase of only 2 parts per 1000.
Under normal conditions, the flooring would be expected to expand much less than this. The expansion gaps we leave along the walls would be much than adequate.
Note: You have to keep your wood or bamboo flooring dry at all times. Exposure to water can cause all sorts of problems such as swelling, warping, cupping, crowning, and buckling.
I wondered, what will happen if I soak it for longer?
So I decided to repeat the test on my own, but this time, for 7 whole days. After over 160 hours of continuous soaking, this is the outcome:
(The test piece has yet to dry out, hence the darker colour.)
The great news is that it is still relatively flat and level. There is no discernible warping, any expansion had happened evenly throughout the plank.
I deliberately chose the Horizontal pattern, as some customers had queried if Horizontal is more prone to warping than Vertical.
This result should put their minds at ease. Even in a humid climate like Singapore’s, bamboo flooring will not experience expansion problems.
But please don’t try this with your wood flooring!
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The Realtor said,
May 21, 2008 at 10:16 pm
This is pretty cool… I’m about to put new flooring over my oak floors and I’ve considered bamboo…
Looks like it’s a good pick… How was it when it dried completely? Color change?
Hun Boon said,
May 22, 2008 at 9:39 am
Hi Realtor,
Thanks for dropping by. It’s still drying out, not surprising since it was soaked for so long.
Yes bamboo is a great choice for floors. What’s wrong with your current oak floor? Unless it has been badly damaged, a re-sanding and re-coating might be all you need.
Cheers.
Linda said,
May 23, 2008 at 8:59 pm
WOW! that is impressive? I would have thought the bamboo would have really
blown up. this is nice to know for my future flooring here in humid east texas!
Hun Boon said,
May 29, 2008 at 4:13 pm
Hi Linda,
yes that’s the best thing about bamboo, it’s highly stable in the presence of moisture.
I don’t know how humid East Texas is, but it sure can’t beat Singapore. Our average humidity level is over 80%, and it reaches 100% on some days.
Star Bamboo Singapore » Don’t try this at home - the aftermath! said,
May 29, 2008 at 4:53 pm
[…] Hi all, it’s been another week since our extreme water test. […]