DuraPlus Firestop Radiation Shield
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The DuraPlus Firestop Radiation Shield is used when the Class A Chimney Pipe is extending through a ceiling or floor where a support box is not installed. Most commonly used when passing through a second level of a home into an attic space. The Firestop fits on the underside of the ceiling and allows the pipe to safely pass through the joists.
Measurement Chart:

DuraPlus Firestop Radiation Shield
Size | 6" | 8" |
A | 10 3/16 | 12 3/16 |
B | 10.875" | 12.875" |
C | 16.5" | 16.5" |
Product Details:
The DuraPlus Firestop Radiation Shield is used when the Class A Chimney Pipe is extending through a ceiling or floor where a support box is not installed. Most commonly used when passing through a second level of a home into an attic space. The Firestop fits on the underside of the ceiling and allows the pipe to safely pass through the joists.
Measurement Chart:

DuraPlus Firestop Radiation Shield
Size | 6" | 8" |
A | 10 3/16 | 12 3/16 |
B | 10.875" | 12.875" |
C | 16.5" | 16.5" |
Help & Documents:
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Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. So if you are looking for UL listed chimney liner sold directly to homeowners, then look no further than Rockford Chimney