[Greenbuilding] Best attic stairs?

[Bill Christensen]

Hi all,

I'm looking for a really good insulated, sealed attic stair to replace 
the uninsulated, leaky el-cheapo variety currently in place.  I know I 
saw some *really* well made ones from a company on the east coast at a 
green building conference a fair while back - hope they're still in 
business - but I don't recall the name and my Google-Fu hasn't turned up 
any particularly stellar candidates.

I don't want a box or tent over the existing stair, which is going to 
need replacing anyway.  I'd rather just get a stair that seals well in 
the first place.

My understanding is that many jurisdictions now or will soon require 
R-30 attic stairs (or assemblies) for new construction.  So I'm guessing 
someone must actually make them.

The only place I've found so far that's close had an R-38 stair on their 
website as "Coming Soon" - but emailing them put 'soon' in the 'we don't 
know when' vaporware category.

Any good leads?

Thanks in advance.

-- 
Bill Christensen
http://SustainableSources.com
http://LinkedIn.com/in/billc108