[Clayart] Lid

[Douglas Fur]

Misc thoughts...
Why flat? Keep the polygonal base plan. Cut and weld an angle frame. Cut
each triangular facet a little long so you get a few inches of rise.
Mix materials. AKA put rigid board on the outside to carry the structural
load and button high temp fiber on the inside for heat load.
I built a door for a friend's kiln with kaowool buttoned to furnace board
insulation.
The boards were an APGreen product no longer available.
Rock wool can be a good backup insulation below red heat. I'd be curious if
these boards plus an inch or 2 of fiber would be adequate... about $10
 each...
ROXUL MINERAL-ROCKWOOL ® 60 ACOUSTIC INSULATION - 6LBS 48"X24"X2" CASE OF 6
Duff
Seola Creek
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