NEW PRODUCT RELEASE by DCI Products 2026!

Drip Edge Extension

(With or Without Copper Algae/Moss Prevention Strip!)

DCI Drip Edge Shingle Extension under the first course to extend water runoff into the gutter and away from running down the fascia board or behind the gutter. Or to extend the overhang of the first SmartVent shingle by the required 3/4″ “Shadow Line” required by the manufacturer. Easy and quick to install. Cuts easily with a utility knife or a quality pair of scissors.

Measurements of the Drip Edge Extension

Measurement of the Drip Edge Extension

Drip Edge Extensions are 36½” long by 2-3/4″ wide by 1/8″ in height (thickness). Extensions can be placed in succession across the selected areas to provide the necessary overhang protecting the location of choice at eaves edge, mid-roof or off-peak locations. It can be covered with copper 1” wide tape for Algae/Moss control also. See below.

Sample image of Drip Edge extension with and without the Copper Tape

Algae/Moss Prevention Copper Tape installation

Copper tape 1” wide (see roll below) with a glue backing strip (peel and stick) Installed in 36½” long strips prior to installation for Algae/Moss control on shingles or it can be applied as a continuous run after installation of the Drip Edge Extension if the roof is a lower slope (walkable) roof surface with proper safety equipment. The copper tape is available in 66 ft. rolls as an accessory item. (See below to order)

Copper Tape roll with DCI Products Drip Edge Extensions

DCI Products has developed a shingle extension for multiple uses (2.75” wide X 36.50” long X 1/8” thick)

DCI Drip Edge Shingle Extension is shown under the third course up from the roof edge to prevent Algae or Moss from growing at the roof edge and in the gutters. Copper strips for Algae/Moss prevention can be installed at various shingle courses. The extension also can be used to extend the shingle overhang of the first SmartVent shingle by the 3/4″ “Shadow Line” requirement by the manufacturer. Easy and quick to install.

Installation Instructions

1. DCI Drip Edge Shingle extension under first course to extend water runoff into the gutter and away from running down the fascia board or behind the gutter,  or to attach Algae/Moss prevention 1” copper strips for algae and moss prevention at various shingle courses, or to extend the overhang of the first SmartVent shingle by the required 3/4″ “Shadow Line” required by the manufacturer.
2. Installation options are: 1- nail to the roof surface under the above, upper shingle (1.25” roof nails), or 2- a bead of caulk under the shingle on top of the Drip Edge Extension, and press in place (no nails). Cuts easily with a utility knife or quality scissors. Butt each piece tightly together.

Algae/Moss Prevention with Copper Tape installed on Drip Edge Extensions at various locations on the roof.
Copper tape sold separately.

When an important part of SmartVent installation is sometimes overlooked.

Here are the last steps of the standard SmartVent installation.

Apply a roll of ice shield on top of the SmartVent even at the lower lift edge and directly to the plywood above the vent. If tarpaper was already installed, gently tuck the ice shield under the higher course of tarpaper so it laps over the ice shield by at least three inches or more. Ensure ice shield adheres to SmartVent and wood decking, not installed over tarpaper..Install a starter course of shingle slightly overhanging the SmartVent bottom edge about ½”. Align shingles per manufacturers’ directions starting at ½” overhang.

When you have found you need to revisit your SmartVent installation and the project requires a drip edge extension. There is a solution.

DCI Products has developed a quick and easy cure for the situation. That is the Drip Edge Extension.

This extension can used With or Without the Algae/Moss Prevention Copper Tape(purchased seperately).

Algae Prevention Copper Tape

One inch wide by 66 Feet, per roll

Algae/Moss Prevention Copper tape

Installed in 36½” strips prior to install or can be applied as a continuous run after installation of the Drip Edge Extension.