Ever since I bought my stove pad, I've been trying to find something in writing that would specify the R-value. Their insert says it has insulating value equal to 3/8" asbestos millboard, which I haven't had any luck finding an R-value for either. Their customer service department said it has R= 1.08, but nothing in writing to that effect.
Here's where the "slap forehead" comes in: As I was moving the pad today, prior to installation, I happened to look again at the back side. Printed in inch-high letters it says, "USG Micore". As many people have indicated, Micore is an excellent insulator and a 1/2" thick piece has R= 1.1 (which is essentially what Imperial's customer service said).
I mentioned in another thread that I bought my 36" x 48" piece (covered in black sheet metal) for $43 at Lowe's. It was an end-of-season closeout, normally priced at $56.95. All's well that ends well...
Here's where the "slap forehead" comes in: As I was moving the pad today, prior to installation, I happened to look again at the back side. Printed in inch-high letters it says, "USG Micore". As many people have indicated, Micore is an excellent insulator and a 1/2" thick piece has R= 1.1 (which is essentially what Imperial's customer service said).
I mentioned in another thread that I bought my 36" x 48" piece (covered in black sheet metal) for $43 at Lowe's. It was an end-of-season closeout, normally priced at $56.95. All's well that ends well...
