Panel Vent

DECRA Panel Vent is a roof exhaust component that provides a ventilation outlet for attic air near the roof ridge. It is made in versions matched to six DECRA profiles: Villa Tile, Tile, Shingle XD, Shingle Plus, Shake XD and Shake.

Panel Vents are used with attic ventilation inlets at the eave or soffit areas that access the attic air space. They are not used as air ventilation inlets. The recommended total net free area of the inlets equals or exceeds the total net free area of the outlet ventilation from all installed Panel Vents.

DECRA provides an attic ventilation calculator on its website to help determine the number of vents needed, based on the 1-in-150 or 1-in-300 ventilation calculation rules, as applicable to the local building code and the use of a vapor retarder.

Panel Vents are installed on the last full course below the roof ridge, and no more than four feet down from the roof ridgeline peak.

• Villa Tile: 96 square inches per vent.
• Tile: 106 square inches.
• Shingle XD: 106 square inches.
• Shingle Plus: 64 square inches.
• Shake XD: 106 square inches.
• Shake: 106 square inches.

• Villa Tile: 44-1/4 inches long by 17 inches wide, exposure 39-1/2 by 14-1/2 inches, vent weight 13.8 pounds, 16.3 pounds in the box.
• Tile: 52 by 16-1/2 inches, exposure 50 by 14-1/2 inches, 12.5 pounds, 15 pounds in the box.
• Shingle XD: 52-1/8 by 14-1/8 inches, exposure 49-7/8 by 12-3/8 inches, 12.0 pounds, 14.5 pounds in the box.
• Shingle Plus: 52 by 16-1/2 inches, exposure 50 by 14-1/2 inches, 12.5 pounds, 15 pounds in the box.
• Shake XD: 52-1/8 by 14-1/8 inches, exposure 49-7/8 by 12-3/8 inches, 12.7 pounds, 15.2 pounds in the box.
• Shake: 53 by 14-5/8 inches, exposure 51 by 12-5/8 inches, 12.8 pounds, 15.3 pounds in the box.

Every version is packaged as 1 vent per box.

The installation sequence has a 19-inch wide by 7-inch high opening marked and cut in the sheathing, centered between the planned vent layout lines or battens. An exterior-grade sealant is applied at the primary vent screen, the screen is fastened around its perimeter and flashed, and the profile-matched vent unit is then installed in the panel course.

On a direct-to-deck installation the screen flange enters the cut hole. On a batten installation the flange rises upward. The flashing order shown is bottom strip, sides, then top strip, and the adjacent panels overlap the vent unit as detailed for the roof system.

Panel Vent versions are made for the DECRA metal shingle and shake roofing products and for the tile profiles named above. The separate DECRA Ridge Vent is a roll material installed along the ridge instead.