Rock-Vent Class A Roof Support
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The Rock-Vent Class A Roof Support is designed to provide support for the chimney pipe at the roof line. Easily adjusts to any roof pitch and fits Rock-Vent pipe diameters of 5" to 8". Constructed with a stainless steel band with galvanized mounting brackets.
Use the Roof Support to extend Class A chimney pipe below a cathedral ceiling, when exceeding the weight limit of the primary support, above an offset, or to provide additional stability to any installation.
A roof support bracket can support up to a total of 45 feet of Rock-Vent Class-A Chimney Pipe, and no more than 20 feet below the roof support bracket. Note: Do not mount Roof Support Bracket to sheathing only.
Measurement Chart:
Class A Roof Support

5” | 6” | 7” | 8” | |
A | 7.5” | 8.5” | 9.5” | 10.5” |
B | 4” | 4” | 4” | 4” |
C | 6.125” | 6.125” | 6.125” | 6.125” |
YY | 3” | 3” | 3” | 3” |
*Due to many variables beyond our control, the installer should check actual parts for final dimensions.
Product Details:
The Rock-Vent Class A Roof Support is designed to provide support for the chimney pipe at the roof line. Easily adjusts to any roof pitch and fits Rock-Vent pipe diameters of 5" to 8". Constructed with a stainless steel band with galvanized mounting brackets.
Use the Roof Support to extend Class A chimney pipe below a cathedral ceiling, when exceeding the weight limit of the primary support, above an offset, or to provide additional stability to any installation.
A roof support bracket can support up to a total of 45 feet of Rock-Vent Class-A Chimney Pipe, and no more than 20 feet below the roof support bracket. Note: Do not mount Roof Support Bracket to sheathing only.
Measurement Chart:
Class A Roof Support

5” | 6” | 7” | 8” | |
A | 7.5” | 8.5” | 9.5” | 10.5” |
B | 4” | 4” | 4” | 4” |
C | 6.125” | 6.125” | 6.125” | 6.125” |
YY | 3” | 3” | 3” | 3” |
*Due to many variables beyond our control, the installer should check actual parts for final dimensions.
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