SmartVent Eave Application

The ideal choice for intake ventilation when under eave intake is not allowed by county and state regulations or when soffits do not exist. The eave application is the first pioneered and most popular application of SmartVent.

Our patented design has revolutionized the roofing industry with regards to attic ventilation.

CLick here to download the SmartVent Eave installation instructions
Installation Instructions


(Ensure metal drip edge was previously installed.)

Begin by cutting a slit 1” wide (or a series of 1 ¾” holes 3” on center) into the roof decking 6” to 7” up from the drip edge. Do not cut slit within 12” of any side end or valley/wall intersection.
Be careful not to cut through the rafters!

NOTE: Ensure insulation is not blocking the flow of air extending to the roof ridge.

STEPS 2 & 3 protect the roof and attic
from insects and wind driven rain.


Place the fabric piece half way on the roof side edge and even along the bottom of the drip edge. (Half of the fabric piece is hanging over the side edge of the roof.)

Nail the fabric piece(s) in place.


Lay the 3’(three foot) piece of SmartVent even with the drip edge and at the roof edges.  Nail the SmartVent to the roof decking at the top edge with (4) nails spaced evenly from one end to the other.  Wrap the End Fabric tightly so it covers the outer edge of the SmartVent and nail in place.  Nail the bottom of the SmartVent with (4) nails spaced evenly along the “nail line” and matching the nails at the top of the SmartVent.  Each 3’(three foot) section of SmartVent requires a total of (8) nails.  Nails should be a minimum of 1 ½”, enough to penetrate through the roof decking.


Continue installing SmartVent until the last piece. Repeat STEPS 2 & 3 before laying the final SmartVent piece.


Install tar paper (or ice and water shield) “on top” of the SmartVent. Standard building code requirements determine when ice shield should be used.


Shingle the roof as usual. You now have proper intake ventilation to your attic.

Note: Secure shingles to the roof deck at the ¾” lifted edge of the SmartVent with nails that penetrate through the roof sheathing. (Generally 1½” roofing nails are used on new roofs.)

NOTE: SmartVent can be installed under virtually any shingle course

using proper installation techniques. SmartVent should be installed on shingled roofs with a minimum of 4/12 pitch. There is no maximum slope limitation. Low slope roofs with less than 4/12 pitch can use FasciaVent by DCI for intake ventilation. Use of continuous ridge vents or other approved exhaust vents are required.

Ventilation Questions?

Click here for SmartVent Specifications

Most houses with ridge vents do not have the proper soffit ventilation required because attic insulation blocks the soffit vents. SmartVent allows cooler air to enter under the shingle, through the 1" roof slit and out the ridge vent providing superior air flow and attic cooling.

Click here for an expanding list of SmartVent Dealers. If no dealer is located near you please give us a call at 1-800-622-4455 and we will be happy to locate a dealer for you.

DCI Products Inc 800-622-4455