Active Ventilation RC-9-H12 Aluminum Roof Curb

Product Specifications

Manufacturer: Active Ventilation Products, Inc.

Model: RC-9-H12

Product Type: Roof Curb

Material & Dimensions:

• Material: Aluminum Alloy 3003-H14
• Thickness: 0.025" ± 0.005"
• Tolerance: ± 0.25 (1/4")
• Inside Opening: 11" diameter
• Outside Length & Width: 12"
• Height: 12"

Diagram Descriptions

Top View

This diagram shows the top view of the roof curb. The curb has a square base with outer dimensions of 12 inches by 12 inches. A central circular opening has a diameter of 11 inches. The opening is positioned 2.5 inches from the side edges and 1 inch from the top and bottom edges of the square base. Screw holes are indicated around the perimeter of the base flange, which extends 1.25 inches from the curb body.

Roof Curb Flashing Detail

This cross-sectional diagram illustrates the roof curb installed on a roof deck. It shows a roof vent positioned above the curb. The curb is secured to the roof deck via a flange. The layers depicted from bottom to top are: roof deck, wood nailer, membrane, insulation, the roof curb itself, and a curb mount flange. Arrows within the curb indicate airflow for "Exhaust or Intake." A duct is shown connecting from below the curb.

Angled View

This view provides a three-dimensional perspective of the aluminum roof curb, highlighting its square profile and the angled base flange designed for secure attachment to a roof surface.

Installation Instructions

1. Cut a round hole 11" in diameter in the roof deck.
2. Total number of screws needed for flange = 12.
3. Recommended installation screw: #10 x 1 1/2" Sheet Metal Screw.
4. Flash roof curb onto deck according to specifications of the membrane manufacturer.
5. Screws not included.