It seems to me Next Gen has no real documentation allowing use as hearth. The old Durock did have supporting documentation.
Wonderboard has no real documentation allowing use as hearth. Hardibacker has no real documentation allowing use as hearth. and none of the other products I see have any documentation allowing use as a hearth. Some mention use as wall heat shield but none specificaly mention Hearth applications. Micore 300 has some tech data that supports use but if I use it I still need some form of cement board to lay tile. This makes it very difficult to construct my own hearth pad.
Are there any products with documentation supporting use as hearth pad ?
Can I pore my own concrete block and lay tile on that. From what I can tell Poor R value 4 inch concrete block = .80 Not what I want to do.
Can I use brick? Also Poor R value. 4 inch brick = .80 Also not what I want.
You would think that a manufacturer would have a product with supporting documentation designed for this application. If none exist what are we to do?
Wonderboard has no real documentation allowing use as hearth. Hardibacker has no real documentation allowing use as hearth. and none of the other products I see have any documentation allowing use as a hearth. Some mention use as wall heat shield but none specificaly mention Hearth applications. Micore 300 has some tech data that supports use but if I use it I still need some form of cement board to lay tile. This makes it very difficult to construct my own hearth pad.
Are there any products with documentation supporting use as hearth pad ?
Can I pore my own concrete block and lay tile on that. From what I can tell Poor R value 4 inch concrete block = .80 Not what I want to do.
Can I use brick? Also Poor R value. 4 inch brick = .80 Also not what I want.
You would think that a manufacturer would have a product with supporting documentation designed for this application. If none exist what are we to do?