Roof Top Blox®

1-1/2 in. Height Extension

Part #I80601  |  Manufacturer Part #80601


1 in
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Product Details

  • UV-resistant polypropylene height extension for RTB01 rooftop support block; gives block unit a total height of 6 inches
  • Notched saddle-top design for easy pipe alignment
  • Reinforced screw starter guides
  • Can be mounted on threaded rods if greater than 6-inch total height is desired
  • Bears up to 250 pounds when directly mounted on RTB01 rooftop block and 100 pounds when mounted on threaded rods
  • Reinforced screw starter guides
  • Mount directly to RTB01 for 6 Inch piping height requirements
  • 100 lb/45 kg max load when directly mounted to blox or when elevated on threaded rods


Color: Black

Depth: 8 in

GSA Approved: No

Height: 1 in

IAPMO Listed: Yes

Length: 8 in

Material: Plastic

Material Type: Polypropylene

Roof Flashing Material: Plastic

Width: 2 in