Glenn or any alternate builders

[peternap]

Does anyone have any idea what the panels on this building are made of and how they may attach to the frames?
http://www.ncptt.nps.gov/Product-Catalog/Product.aspx?ProductID=2004-14

[ScottA]

If you're talking about the white parts between the timbers it's a clay sand mix applied over a lathwork or woven lattice work and coated with a lime plaster.

[peternap]

Thanks Scott. I thought it may be earth plaster but the lime coat had me stumped. All of the old clay/earth plasters I've seen were clay colored or just a tad lighter.

Now it makes sense. I wonder what the R value of that is without a straw substructure?

[ScottA]

On an original build I doubt it was over R-3.

[Redoverfarm]

Peter the only thing that you could increase would have a 1" styro in the middle with an airspace on both sides between the lath and board. 

[glenn kangiser]

Lots of cool stuff there, Peter.

[glenn kangiser]

A pix from the PDF before mud and lime.

[peternap]

Thanks Guys!

[Ernest T. Bass]

That's really cool! Looks kinda like our interior walls before we plastered them. What are the vertical staves for? Just to strengthen the lath?

[glenn kangiser]

Looks like it would allow a wider stable section to plaster than just straight ones would.  Possibly the weaving would have a pretty good bracing effect through triangle bracing also.