No Flange Channel Screed

Trim Purpose

Specs, MSDS, and LEED Information for Flannery Trims & Products

Flannery’s No Flange Channel Screeds create an aesthetic reveal in any stucco wall system. Channel Screeds break up plaster or stucco walls by creating horizontal and vertical reveal lines. No Flange Channel Screeds are unique in that they come without the traditional attachment flanges. By removing the flanges from the channel screed, it reduces the amount of raw aluminum used in the production of the trim, which reduces the overall cost. Flannery’s No Flange Channel Screeds are also available with fastening clips at an additional charge.

Product Details

Flannery’s No Flange Channel Screeds are standard extruded aluminum alloy 6063 T5 and have a .050” nominal wall thickness. Aluminum Plaster trims come in 10′ lengths and shall have a standard Clear Anodized Finish. Mill Finish (for field priming & painting), Chem-film finish or other factory finishes and custom paint orders are available. Click on Info Tab above for Factory Finishes.


Part No. “A” Width “B” Width
NF 50-25 1/2″ 1/4″
NF 50-50 1/2″ 1/2″
NF 50-75 1/2″ 3/4″
NF 50-100 1/2″ 1″
NF 50-150 1/2″ 1 1/2″

Install all No Flange Channel Screeds using full ten-foot lengths wherever possible. Attach No Flange Channel Screeds over the weather resistant barrier and lath materials to the framing with nails, screws, or other approved fastening methods. Fastening clips can also be used to assist in the installation process. All trims must be cut accurately and installed with tight, neat joints. Manufacturer recommends that a carbide tip blade along with lubricant be used when cutting any aluminum trims.


Installation Details with Screws Only

Detail Sequence #1- First strike a line as to where the bottom of the No Flange Channel Screed will rest on the wall. Then insert your screws at a 1/2″ depth from the framing or plywood sheathing. Depth may be adjusted for mis-aligned framing. A 1/4″ of spacing between the lath material and the building paper is required to ensure proper stucco embedment.

Detail Sequence #2- Rest the No Flange Channel Screed on the screw shafts. Alignment Splices are available for joining one piece of trim to another.


Detail Sequence #3- Install screws on the top side of the No Flange Channel Screed at an angle to lock the channel screed in place.

Detail Sequence #4- Seal all butt joints and mask reveal before stucco or plaster cement is applied to the wall.


Installation Details with Fastening Clips

Install all No Flange Channel Screeds over building paper and lath material on vertical surfaces using full ten-foot lengths wherever possible. Insert Fastening Clip into the Clip Slot on the side of the No Flange Channel Screed. Fastening Clips are hinged into the Clip Slot at any location along the trim. Then attach the Fastening Clip to the framing with nails, screws, or other approved fastening methods. All screeds must be cut accurately and installed with tight, neat joints. All butt joints must be sealed. Manufacturer recommends that a carbide tip blade along with lubricant be used when cutting any aluminum trims.


Flannery offers prefabricated intersections and corners for intricate building designs that utilize intersecting lines and bands on exterior walls. Prefabricated intersections and corners are mitered and then welded together at their attachment flanges, then vinyl tape is applied to the back of the reveal to prevent water intrusion. Factory welded intersections and corners come with 6” legs, however custom leg lengths can be ordered.


No Flange Channel Screed Radius Form