Flooring

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I, personally, wouldn't put much faith in any CR testing...

There are, indeed, a multitude of grades and the hardness of bamboo in actual testing varies from softer than some pine to harder than hard maple (nominal values, of course, all woods have inherent variability in properties within the same species far more than most other materials).

There have been quite a number of articles in both FHB and FWW over the last several years on bamboo; most (but not all iirc) of the flooring applications in FHB as one would expect while the FWW concentrated more on its use as cabinetwood, counters, etc. Anyway, the upshot of the evaluations I recall ottomh include that how the flooring is manufactured from either end or side grain and very importantly, the actual species used makes a big difference. As well, the caramelizing process used to impart color has a large negative impact on the hardness of all types, again affecting some more pronouncedly than others. The darker the coloring, the more susceptible the end product to denting, etc.

There is a pretty good manufacturers' association and other web sites with more information; if you're really interested/serious I'd recommend them and doing a search on the Taunton FHB site for some more in-depth looking at the variables involved and particularly there for a couple of articles that discuss bamboo itself from the wood characteristics in a fair amount of detail. It ain't much at all like other woods in some important ways; similar in others.

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It *does* dent, like anything else. It may be harder than maple, but it certainly *does* dent. Whack it with a hammer... ;-)

I think there are. The stuff I put down in my previous house was pretty cheap (

These days I' let others make those decisions, I just send in the check on the 1st of the month.

Lew

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Go back end of August and down towards Loudan... :)

It winter kills so takes a little while in the spring/early summer to get its act together...w/ the rains this spring and early summer it'll be back out in full force when has a little hot weather...

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LOL...

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Always wondered whether any of it did survive or not. I'd guess if it once got established it could manage to hang on but wouldn't be nearly so invasive because warm seasons are so much shorter. It can get to 0F and below in K-town and it doesn't actually kill it entirely; simply freezes back. I don't know what it's overwinter limits actually are though...

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My BIL lives in Knoxville and about 10 years ago we visited and that crap was covering everything. Visited again a month ago and hardly any was seen.

Their representative was from Pittsburgh and a _REAL_ pita to deal with both in and out of the

He must have been an import. Pittsburghers are all nice.

We

Saved the story in case we need to blame someone for another blob like attack.:-) I doubt Kudzu or Bamboo will grow around here however, winters are a bit too harsh for the little wusses .

dpb wrote: : Lew Hodgett wrote: :> :> The stuff C/R tested didn't dent or scratch. :> :> There must be several grades of bamboo flooring. : ...

: I, personally, wouldn't put much faith in any CR testing...

: There are, indeed, a multitude of grades and the hardness of bamboo in : actual testing varies from softer than some pine to harder than hard : maple (nominal values, of course, all woods have inherent variability in : properties within the same species far more than most other materials).

: There have been quite a number of articles in both FHB and FWW over the : last several years on bamboo; most (but not all iirc) of the flooring : applications in FHB as one would expect while the FWW concentrated more : on its use as cabinetwood, counters, etc. Anyway, the upshot of the : evaluations I recall ottomh include that how the flooring is : manufactured from either end or side grain and very importantly, the : actual species used makes a big difference. As well, the caramelizing : process used to impart color has a large negative impact on the hardness : of all types, again affecting some more pronouncedly than others. The : darker the coloring, the more susceptible the end product to denting, etc.

To add to this excellent post, I planned to use bamboo flooring in my home office, but was dissuaded when I fond that every sample I could lay my hands on dented very easily, and it's not recommended for a dry climate.

I have gone with bamboo-look laminate, which is cheaper, harder, and very nice looking.

-- Andy Barss

dpb wrote: ...

I didn't find any detailed horticultural works in a quick search but did find there's been a recent outbreak in Oregon along a roadside and reports it's as far north as "the northeast" in some other accounts.

W/ it's ability to root to 3-ft deep or more, I can imagine if it did get a start that while it would take longer in the spring for it to finally get going again it could manage to survive.

That was something we observed in TN; after very cold winters it would be later in the spring before it greened up--seems to come back from the roots where it freezes hard over winter. Kinda' like the wisteria; it may _look_ dead until late spring but when it finally pops you'll be digging out from under the rest of the summer until frost. :(

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Again, my sample size is two but I've found the opposite. The "medium caramelized" I installed in VT was much harder than the "light caramelized" I have here. Maybe the vertical laminations are harder than the horizontal. Dunno. I'd do the stuff I did on my last house again. This stuff, not so much.

I had no problems with it in VT. I would have loved to put it in the bedrooms, but was moving so just threw down some new carpeting.

More information?

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I wondered how long it would take...and surprised it took this long! :)

The key in the above on caramelization and hardness that was implied but not specifically stated is that the effect is within the same species and grain orientation, not strictly monotonic across all species/grades/manufacturing.

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So it's a crap shoot? I bought pretty cheap bamboo, since I was planning on selling the house in a couple of years. I went with bamboo mainly because it looked good and was cheaper than replacing the vinyl. It worked. I managed to sell the house at the end of '07.

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It was five (5) days since I posted the comments on bamboo that included the caramelization issue remarked upon... :)

I had expected after I reread the post it would be about 5 minutes, tops...

Pretty much...the summary articles in FWW and FHB (and the data on manufacturers' organization website confirm) there's such a wide variation in basic properties between the various species and manufacturing processes used it's only looking at specific test data for a specific product that makes any sense.

Price isn't necessarily that much of a guide to the hardness in particular; it seems w/ bamboo flooring products more in other areas such as the orientation, finish durability, variability within product, etc., ...

Oh, I was replying thru Andrew (hadn't seen your post earlier).

If you can trust any tests the manufacturer or retailer post.

The finish quality is an obvious place for differences. The difference in the substrate is a bit surprising, though. I guess wood isn't much different.

krw wrote: ...

The bulk of the data in the FHB/FWW articles on bamboo characteristics itself came from USFS or similar sources...otoh, if the product manufacturers' trade associations are fronting bogus data, then there's little one can find to use on any product w/o testing it oneself.

That's the whole point -- wood and bamboo are nothing alike--their structures and properties are vastly different. Add to that there are a "veritable plethora" of species of bamboo which have properties that range from softer than some pines to harder than sugar maple, to consider that just because a flooring material is made from _some_ species of bamboo is essentially meaningless.

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If it varies so much, how can you know what you're buying?

I don't see any species of bamboo listed in catalogs. I guess bamboo isn't a useful product any more than "wood" is.

The frost line in Pittsburgh is 3-ft. I doubt it gets down that far very often, but still, that stuff wouldn't likely make it through for long or it would already be here, considering you were nice enough to provide us with a sample:-) As far as the north is concerned, there is a fairly large difference in coastal north vs inland north. The ocean has a pretty good moderating effect I think.

I think we have wisteria, not sure, I'm no plant guy... Plenty of Oak, Maple, Cherry and Walnut however, and thats what its all about:-)