Roof Curb, Adjustable Width3C438 50551
Average Rating: n/a
|Curb Height (In.)||12-3/8|
|Curb Square O.D. (In.)||32-1/2 to 41|
|Curb Square I.D. (In.)||28-1/2 to 37|
|Damper Size (In.)||27 to 39 Sq.|
|Flashing Flange (In.)||1-1/8|
|Mounting Flange Surface W (In.)||1 1/8|
|Construction||18 Gauge Galvanized Steel|
|Use w/Dayton Ventilators||Having a Square Base From 34 to 39-1/2"|
|For Use With||UL 705 Applications|
- For flat, noninsulated roof decks with thick or rigid roofing material. 18-ga. galvanized steel body construction with fully welded corners. Fixed curbs include 1-1/2" wood nailer.
- Prefabricated, leakproof curbs provide compatibility between ventilator, curb, and roof opening on commercial and industrial buildings. Most include 1" insulation and integral damper tray. Adjustable curbs are shipped unassembled. For recommended dampers, see page 4456.
- For noninsulated metal, concrete, or wood roof decks For built-up asphalt or coal tar roofing materials