[Greenbuilding] metal roofing/siding.... "green?"

[William Updike]

Here's a nice little write-up comparing fiber cement
and vinyl siding:

http://www.greenhomeguide.com/index.php/knowhow/entry/1304/

It doesn't mention metal siding, but I imagine that
the energy intensivity is similar if not worse for
aluminum vs. fiber cement.  I recently saw that there
has been some experimentation with polypropylene
siding, which is good because it's inert (vs. vinyl)
and recyclable.  But I don't think it's ready for
prime time yet quality-wise.

Wood (provided it's FSC-certified or reclaimed) is
still the winner from an energy intensivity/toxicity
standpoint.  Yes, you have to paint it, but you also
have to periodically paint aluminum and hardie.

Cheers,
Bill

--- tom <tom at honeychrome.com> wrote:

> Is there any sort of consensus as to how 'green'
> metal siding/roofing  
> is, versus wood, wood-composite, hardiplank,
> shingle, etc?  And on  
> the topic of metal siding, anyone have any
> info/ideas/links about how  
> to trim/flash penetrations (windows, doors) in
> corrugated siding?
> Thanks
> 
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