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Thanks Royce,

I guess I should have done a bit more "searching" as I did see a post by Randy where he said he used mineral wool and it worked really good for corner superchunks."

Thanks !!!

Steph



Steph,

I believe Randy used the OC 703 fiberglass for his superchunks as it is more rigid.

"Based on my research I decided to purchase some Owens Corning 703 Rigid Fiberglass board from a local insulation distributor.

I don't think that mineral wool would work well for superchunks as it is not rigid enough to work with. I could be wrong tho.

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