Toll Free: 800-274-2409 | Toll Free Fax: 800-876-6376


CNC Series – Copper Base Roof Flashings

  • 16 ounce dead soft 99.9% pure copper base
  • A.S.T.M. B-370 152M – 00
  • Premium Elastomeric Collar
  • Excellent ozone resistance
  • Improved UV resistance
  • Collar rated 180ºF continuous heat (For higher temperatures, see our Silicone Residential Master Flash)
  • Approved for Type B installations
  • Fits up to 40º roof pitch
  • Not for hot-mopped or built-up roof applications
  • Made in the USA
Part Pipe Size Base Size Ctn Wt.
CNC30 3’’ 10-3/4’’x14-1/2’’ 13#
CNC40 4’’ 11-3/4’’x15-1/2’’ 16#
CN123 1-1/4’’-2’’-3’’ 10-3/4’’x14-1/2’’ 13#
CN340 3’’-4’’ 11-3/4’’x15-1/2’’ 17#

12 per carton. Customers may purchase less than carton quantity on this series of flashings.
20 Year Limited Warranty and suggested installation sheet inside every carton.
*Using petroleum based mastics, sealing compounds or paints on all collars will void warranty on this page.


We treat all our customers like family and provide that personal touch.





8951 Yahweh Rd, Olive Branch, MS 38654
Toll Free: 800-274-2409 | Toll Free Fax: 800-876-6376
Master Flash®, Residential Master Flash®, and Retrofit® are registered trademarks of Aztec Washer Company.