Pennguard block.

[joesn68]

Would Pennguard block make a good floor insulation instead of vermiculite?

[UtahBeehiver]

What are the specs?

[SableSprings]

I found a statement in a Pennguard Block installation that notes the material is good to only 200°C. I didn't find any compression data...you need to have at least 100 psi from my perspective readings. As Russell noted above, you need to get a more complete data sheet on the product before you proceed exchanging any money for it.

[joesn68]

Thank you. The person who is selling them could give me no data..I will keep looking. I am hoping the start the foundation in the next couple of weeks. I was able to get all my cinder blocks for my raised garde bed and the oven from a guy in Morgan for .87 cents each.

[UtahBeehiver]

I did do a google search, the data is out there, it appears to be similar to FoamGlas, which is a good "first" layer since FoamGlas will not absorb water. If this Pennguard is a good price it would be worth looking at. Here some data of K values of vcrete.

[joesn68]

I intend to only use it as an insulation barrier between the fire bricks of the floor and the hearth. Fire bricks Will actually make the floor.

[UtahBeehiver]

Understand that.