Homasote implementation

[ocalicreek]

Thank you for sharing that enlightening picture, Ed! Question: Could it be the cardstock that warped? That's where I'd put my money...unless you've got another picture showing just the homasote by itself. And a second question - is it the actual homasote brand or a generic fiber board? Not trying to challenge your results, just wanting to clarify the results. Also, what did you use to glue the cardstock to the homasote (and to itself between layers?).

Now we're getting somewhere!

Galen