#XJ15 Double-J Control Joint

Expanded flange control joint with a taped reveal for a clean finish

#XJ15 Expanded Flange Control Joint (Double-J) is used to relieve stresses in large plastered areas of walls, ceilings, and stucco areas. This expanded wing control joint minimizes cracking and assures proper plaster and stucco thickness. The Double-J has a 5/16” reveal and rolled outer edges to prevent visible separation cracking. The applied plastic tape keeps the reveal clean and is removed easily after the finish application.

Application(s): Stucco

The #XJ15 enables plaster to key into the return lip to eliminate shrinkage separation, a preferred finish feature. The joint is taped, preventing stucco from getting caught inside during installation and providing a neatly finished job upon completion.

The #XJ15 Double-J Control Joint is also available in zinc alloy for increased corrosion resistance.


ASTM & Code Standards:

  • Material: ASTM C1063
  • Installation: C1063 (exterior), ASTM C841 (interior) and EMLA-920
  • SDS & Product Certification Information is available at www.clarkdietrich.com/SupportDocs

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Product Code Description
XJ15 #XJ15 Double-J Control Joint

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